BỘ giáo dục và ĐÀo tạo bộ NÔng nghiệp và ptnt viện chăn nuôi ngô thành vinh nghiên cứu sinh trưỞNG, sinh sảN, cho thịt và MỘt số giải pháp nâng cao năng suất thịt của cừu phan rang luậN Án tiến sĩ NÔng nghiệP

B. Tài liệu tham khảo tiếng Anh:

Abadjieva, K., Shumkov, K. Kistanova, E. Kacheva, D. Georgiev, B. 2011. Opportunities for the improvement of the reproductive performances in female animals .Biotechnology in animal husbandry 27, 365-372.

Abd El-aal H.A. and Suliman, A.I.A. 2008. Carcass traits and meat quality of lamb fed on ration containing different levels leucaena hay Leucaena leucocephala, L). Biotechnology in Animal Husbandry. 24 (3-4): 77-92.

Abdul Wahid, GM., Tajuddin, Z.A. and Matta, A.R.1989. Sheep Production and Development in Malaysia. 80: 138

Abdul-Aziz, G.M., El Shaer, H.M. Fahmy, A.A. Shalaby, A.S. and El Gawad, A.M.1999. Carcass quality of fattened sheep fed halophytic silage with non-conventional energy supplements in Egypt. Proc.Small Ruminant Prod. Systems. Molina de Segura, Murica, Spain.

Abebe, G., Kannan, G and Goetsch, A.L. 2010. Effects of small ruminant species and origin (highland and lowland) and length of rest and feeding period on harvest measurements in Ethiopia African Journal of Agricultural Research 5(9): 834-847.

Abegaz, S., Duguma, G. Negussie, E. Gelmesa, U. Terefe, E and Rege, J.E.O. 2002. Factors effecting reproductive performance and estimates of genetic parameters of litter size in Horro sheep. J. Agr. Sci. 139:79-85.

Adu I.F. and Brinckman, W.L.1981. Feedlot performance and carcass characteristics of sheep fed varying concentrate levels. J. Anim. Prod. Res. 1(1): 1-12.

Afolayan, R.A., Fogarty, N.M. Gilmour, A.R. Ingham, V.M. Gaunt, G.M. and Cummins, L.J. 2008. Reproductive performance and genetic parameters in first cross ewes from different maternal genotypes. J. Anim. Sci. 86:804-814.

Alderson, A., Naranjo, A. Kress, D.D. Burfening, P.J and Blackwell, R.L. 1982. Sheep comparison of Rambouillet, Corriedale, American Romney Marsh and British Romney Marsh with native Criolla in Colombia. Int. Goat & Sheep Res. J. 2, 38 - 48.

Alfonso, M., Berge, P. Fisher, A.V. Piasentier, E. Sañudo, C. Stamataris, C. Thorkelsson, G. 2001. In fluential factors in lamb meat quality. Acceptability of specific designations. In : Rubino R. (ed.), Morand-Fehr P. (ed.). Production systems and product quality in sheep and goats. Zaragoza : CIHEAM, 2001. p. 19-28 (Options Méditerranéennes : Série A. Séminaires Méditerranéens; n. 46)

Aliyari, D., Moeini, M.M. Shahir, M.H. Sirjani, M.A. 2012: Effect of Body Condition Score, Live Weight and Age on Reproductive Performance of Afshari Ewes. Asian Journal of Animal and Veterinary Advances.7: 904-909.

Alper Yilmaz, Bulent Ekiz, Mustafa Ozcan, Cuneyt Kaptan, Hulya Hanoglu, Ismail Erdogan, Omur Kocak .2009. Carcass traits of improved and indigenous lamb breeds of North-Western Turkey under an intensive production system .Marmara Livestock Research Institute. Bandirma, Turkey. Ital.J.anIm.ScI. vol. 8, 663-675,

AL-Shorepy S.A and Notter, D.R. 1997: Response to Selection for Fertility in a Fall-Lambing Sheep Flock. J. Anim. Sci. 75:2033–2040.

Ambar Rusyad. 1977. Sheep breeds of Indonesia. Report for FAO/UNEP Project “Conservation of Animal Genetic Resources”. 10 pp. TS.

Ameha Sebsibe, N.H., Casey, W.A. van Niekerk, Azage Tegegne and Coertze, R.J. 2007. Growth performance and carcass characteristicsof three Ethiopian goat breeds fed grainless diets varying in concentrate to roughage ratios. SouthAfrican Journal ofAnimal Science 2007, 37 (4) 221-232.

Anel, L., Kaabi, M. Abroug, B. Alvarez, M. Anel, E. Boixo, J.C. De La Fuente, L. F. De Paz, P. 2005: Factors influencing the success of vaginal and laparoscopic artificial insemination in Churra ewes: a field assay. Theriogenology, 63, 4, 1235-1247.

Armbruster, T., Peters, K.J. and Hadji-Thomas, A. 1991. Productivity of sheep raising in the forest region of Ivory Coast. III. Mortality and productivity. Journal of Animal Breeding and Genetics. 108:220-226.

Atay, O., Gokdal, O. Eren, V. Cetiner, S and Yikilmaz, H. 2009. Effects of dietary vitamin E supplementation on fattening performance, carcass characteristics and meat quality traits of Karya male lambs Arch Tierz 52, 618-626.

Banerjee, S. 2011. Carcass composition of Shahabadi Sheep reared on natural pastures in hot and humid climate of Eastern India.World Applied Sciences Journal, 14(4): 506-509.

Bas, P., Beriain, M. J. Purroy, A. Treacher. T. 2002. Effect of animal and nutritional factors and nutrition on lamb meat quality. In : Ledin I. (ed.), Morand-Fehr P. (ed.). Sheep and goat nutrition: Intake, digestion, quality of products and rangelands. Zaragoza. CIHEAM, 2000. p. 75-86 (Cahiers Options méditerranéennes; n. 52).

Bathaei., S.S. and Leroy, P.L. 1996. Growth and mature weight of Mehraban Iranian fat-tailed sheep. Small Ruminant Research.22:155-162.

Berg, R.T. and Walters, L.E. 1983.The meat animal: Changes and challenges. Journal of Animal Science. 57 (suppl. 2)133-146.

Benyi, K. 1997. “Estimation of live weight fromchest girth inpureand crossbred West African goats”. Trop. Anim. Health Prod. 29: 124-128.

Berhanu Bela and Aynalem Haile. 2011. Factors affecting growth performance of sheep under village management conditions in the south western part of Ethiopia Livestock Research for Rural Development 21 (11) http://www.lrrd.org/lrrd21/1 1/bela21189.htm

Berhanu Bela and Aynalem Haile. 2009. Factors affecting growth performance of sheep under village management conditions in the south western part of Ethiopia. Livestock Research for Rural Development 21 (11) 2009; http://www.lrrd.org/lrrd21 /11/bela21189.htm.

Bhat, P.N., Khan, B.U. Koul, S.K and Bhadula, S.K. 1978. Breed characteristics of Muzaffarnagri Sheep. Indian J. Anim. Sci., 48: 506-10.

Birutė Zapasnikienė, Rasa Nainienė. 2012. The effects of crossbreeding Romanov ewes with Wiltshire horn rams on ewes fertility and progeny performance. Veterinarija ir zootechnika (Vet Med Zoot). T. 57 (79). 2012. Pp: 72-76.

Bodin L., Elsen, J.M. Hanocq, E. Francois, D. Lajous, D. Manfredi, E. Mialon, M.M. Boichard, D. Foulle, J.L. San-Cristobal-Gaudy, M. Teyssier, J. Thimonier, J. Chemineau, P.1999: Genetics of reproduction in ruminants. Productions Animales, 12, 2, 87-100.

Bingöl Mehmet, Turgut Aygün, ¨ Ozdal Gökdal, Ayhan Yılmaz. 2006. The effects of docking on fattening performance and carcass characteristics in fat-tailed Norduz male lambs. Small Ruminant Research 64 (2006) 101–106.

Borton, R.J., Loerch, S.C. McClure, K.E. Wulf, D.M. 2005. Comparison Characteristics of lambs fed concentrates or grazed on ryegrass to traditional or heavy slaughter weights. II. Wholesale cuts and tissue accretion.J Anim Sci.: 83(6):1345-52.

Bouton, P. E., Harris, P.V and Shorthose, W.R. 1972. The effect of ultimate pH on ovine muscle: Water holding capacity. J. Food Sci., 37: 351-355.

Branca A., Molle, G. Sitzia, M. Dcandia, M. Landau. S. 2000: Short-term dietary effects on reproductive wastage after induced ovulation and artificial insemination in primiparous lactating Sarda. Animal Reproduction Science, 63, 1-2 , 0378-4320

Brand, T.S., 2000. Grazing behaviour and diet selection by Dorper sheep. Small Rumin. Res. 36, 147-158.

Bray, A.R., Graafhuis, A.E and Chrystall. B.B. 1989. The accumulative effect of nutritional shearing and preslaughter washing stresses on the quality of lamb meat. Meat Sci., 25: 59-67.

Brazal, T. and Boccard, R. 1977. Efectos de dos tratamientos ante mortem sobre la calidad de la canal y de la carne de cordero. Prod. Anim. INIA, 8: 97-125.

Brown, M. A., Brown, A.H. Jackson, W.G. (Jr.) and Miesner, J.R.1997. Genotype x environment interactions in Angus, Brahman, and reciprocal cross cows and their calves grazing common bermudagrass and endophyte-infected tall fescue pastures. J. Anim. Sci. 75, 920-925.

Brzostowski, H., Niznikowski, R and Milewski, S. 2006. Composition and properties of meat of Pomeranian purebred lambs and their crossbreeds with Berrichon du Cher and Charolaise. Arch Tierz 5, 494-501.

Brzostowski, H. and Tanski, Z. 2006. Nutritional value of meat of Pomeranian breed lambs and crossbreds of Blackheaded and texel rams. Arch Tierz 49 SI, 345-52

Brzostowski, H., Tywonczuk, J and Tanski, Z. 2004. Indexes of nutritive value of meat from Pomeranian lambs and crossbreeds of Pomeranian ewes with meat breed rams. Arch Tierz 47 SI, 175-82.

Burfening, P.J. and Kress. D.D. 1993. Direct and maternal effects on birth and weaning weight in sheep. Small Ruminant Research.10:153-163.

Burke, J.M. and Apple, J.K. 2007. Growth performance and carcass traits of forage-fed hair sheep wethers. Small Ruminant Research, 67: 264-270.

Cam M.A., Olfaz, M and Soydan, E. 2010: Body measurements reflect body weights and carcass yields in karayakasheep. Asian J. Anim. Vet. Adv., 5: 120-127.

Cam, M.A. and Kuran, M. 2004a. Effects of a single injection of hCG or GnRH agonist on day 12 post mating on fetal growth and reproductive performance of sheep. Anim. Reprod. Sci., 80, 81–90.

Cam M. A. and Kuran, M. 2004b. Shearing pregnant ewes to improve lamb birth weight increases milk yield of ewes and lamb weaning weight. Asian-Aust J. Anim. Sci., 17, 1669–1673.

Cam, M. A., Kuran, M. Yildiz, S and Selcuk, E. 2002. Fetal growth and reproductive performance in ewes administered GnRH agonist on day 12 post mating. Anim. Reprod. Sci., 72, 73–82.

Casas, E., Freking, B.A and Leymaster, K.A. 2004. Evaluation of Dorset, Finnsheep, Romanov, Texel, and Montadale breeds of sheep: II. Reproduction of F1 ewes in fall mating seasons. J. Anim. Sci. 82:1280–1289.

Casas, E., Freking, B.A and Leymaster, K.A. 2005. Evaluation of Dorset, Finnsheep, Romanov, Texel, and Montadale breeds of sheep: V. Reproduction of F1 ewes in spring mating seasons. J. Anim. Sci. 83:2743–2751.

Ceyhan, A., Hanoglu, H. Sêznler, T and Erdogan, I. 2008. The improvement studies on mutton sheep for Marmara region conditions. 2. Fattening and carcass characteristics of lambs. Bulg. J. Agric. Sci., 14: 606-615

Charray, J., Humbert, J.M and Leif, J. 1992. Manual of sheep production in humid tropics of Africa. CAB International. U.K.

Chemineau, P., Guillaume, D. Migaud, M. Thiery, J.C. Pellicer-Rubio, M.T. and Malpaux, B. 2008. Seasonality of Reproduction in Mammals: Intimate Regulatory Mechanisms and Practical Implications. Reprod Dom Anim 43, 40–47.

Clarke, I.J. and Tilbrook, A.J. 1992. Influence of non-photoperiodic environmental factors on reproduction in domestic animals.Anim. Reprod. Sci. 28, 219–228.

Cloete, S.W.P., Cloete, J.J.E. Durand, A and Hoffman, L.C. 2003. Production of five Merino type lines in a terminal crossbreeding system with Dormer or Suffolk sires. South African Journal of Animal Science 2003, 33 (4), pp:223-232.

Cloete .JJE., Cloete, S.W.P. Olivier, J.J. Hoffman. L.C. 2007. Terminal crossbreeding of Dorper ewes to Ile de France Merino Landsheep and SA Mutton Merino sires Ewe production and lamb performance. Small Rumin Res 69, 28-35.

Crouse, J.D., Busboom, J.R. Field, R.A and Ferrell, C.L. 1981.The effects of breed, CSA (central statistical authority), 2004 the 2001/2002 Ethiopia agricultural sample enumeration (EASE), Executive summary, Addis Ababa, Ethiopia.

Cristobal Fores Peres. 2004. Improving performance of sheep using fibrolytic enzymes in darry use and malata in fatterning lambs; Tesis Doctorral chương 5: 68-82.

Cuthbertson, A and Kempster, A. 1978. Sheep carcass and eating quality British Council Course 729 Management and Diseases of sheep Edinburgh Great Britain.

Dani, N.P., Rajalakshmi, D. Indira, C.B. Dhanraj, S. Rao, D.N. and Mahendrakar, N.S. 1985. Meat quality of Bannur rams lambs. Indian J. Anim. Sci., 55: 1094-99.

Dayani.O., Tahmasbi, R. Khezri, A and Sabetpay, A.R. 2011. Straw with Urea and Whey on Fattening Lambs Performance. Iranian Journal of Applied Animal Science. 1(4), 265-271.

Dayani O., Dadvar, P. Afshamarnensh, M. 2011. Effects of dietary whole cottonseed and crude protein leval on blood parameter and performance of fattening lambs. Small Ruminant Research 97: 48-54.

David, I., Robert-Granie, C. Manfredi, E. Lagriffoul, G and Bodin, L. 2008. Environmental and genetic variation factors of artificial insemination success in French dairy sheep. Animal, Vol.2, No.7, (Jul), pp. 979-986, 1751-7311.

Davis, G.H. 2004: Major genes affecting ovulation rate in sheep. Genet. Sel. Evol. 37, 1, 11–23.

Davis, G.H., Dodds, K. G. Wheeler, R and Jay, N.P. 2001. Evidence that an imprinted gene on the X chromosome increases ovulation rate in sheep Biology of Reproduction.64: 216–221

Davis, J (Ed.). 2003. 'Feedlotting Lambs: A Producers Guide.' (Landlinks Press: Collingwood Victoria) Department for Environment, Food and Rural Affairs (1995) Heat stress in sheep - solving the problem. DEFRA.Retrieved 30 March 2005 from http://www. defra.gov.uk

David, L. and Thomas. 2006. Useable Crossbreeding Systems for Small and Large Sheep. Professor of Sheep Genetics and Management and Extension Sheep Specialist Department of Animal Sciences University of Wisconsin-MadisonJanuary 6, 2006. 1-11.

Dawson, L. E., Carson, R. A. F. McClinton, L. O. W. 2002. Comparison of productivity of Texel and Rouge de í Ouest ewes and their crosses. Animal Science, 75: 459-468.

Demeke, S., Van der Westhuizen, C. Fourie, P.J. Neser, F.W.C and Lemmas, S. 2004. Effect of genotype and supplementary feeding on growth performance of sheep in the highlands of Ethiopia. South African Journal of Animal Science 2004, 34 (Supplement 2).

Devendra, C. and McLeroy, GB. 1982: Goat and sheep production in the tropics. Intermediate Tropical Agriculture Series, Longman, London, pp. 55.

Devendra, C. and Faylon, P.S. (Eds) 1989. Sheep Production in Asia. Book Series No. 80/1989, Philippine Council for Agricullute, Forestry and Natural Resources Research and Development, Los Banos,Philippines, xi + 215 pp.

Devendra, C. and McLeroy, GB. 1988. Goat a Sheep production in the Tropics. Longman Scientific and Technical Singapore, pp: 271.

Devendra, C. 1975. Indigenous sheep of Malaysia. Malaysian Agricultural journal, 50 (1): 48-66.

Devine, C. E., Graafhuis, A.E. Muir, P.D and Chrystall, B.B. 1993. The effect of growth rate and ultimate pH on meat quality of lambs. Meat Sci., 35: 63-77.

Dickerson, G. E. 1977. Crossbreeding evaluation of Finnsheep and some US breeds for market lamb production. North Central Reg. Publ. No. 246. USDA and Univ. Nebraska, Lincoln.

Dickerson, G. E., Glimp, H.A. Tuma, H.J and Gregory, K.E. 1972. Genetic resources for efficient meat production in sheep. Growth and carcass characteristics of ram lambs of seven breeds. J. Anim. Sci. 34 (6):940-951.

Djajanegara, A. and Rangkuti, M. 1989. Sheep Production and Development in Indonesia Sheep Production in Asia 80: 126 – 137

Doan Duc Vu, 2008. Result of pure breeding two sheep breeds Dorper and White Suffolk imported from Australia and cross breeding for mutt on Phan Rang sheep breed in Vietnam, AAAP 13th – HaNoi.

Dobson, H., Smith, R.F. 2000. What is stress, and how does affect fertility? Anim. Reprod.Sci. 60:743-752.

Doina Popa, Mariana Rusu, Ioan Padeanu, Sorin-Octavian Voia, Dorin Cotarlea, Constantin Bozdog. 2013. Body Weight Evolution in Suffolk x Turcana Crossbred Lambs Reared in Sibiu Region during Lambing up to Weaning PeriodAnimal Science and Biotechnologies, 2013, 46 (2), 43-47.

Doloksaribu, M., Gatenby, R.M. Subandriyo and Bradford, G.E. 2000. Comparison of Sumatra sheep and hair sheep crossbreds. III. Reproductive performance of F2 ewes and weights of lambs. Small Rum. Res. 38:115-121.

Donald, H.P. and Read. J.L. 1976. Animal production in Australian. Anim. Prod. 2:471.

Doney, J.M., Gunn, R.G. Horak, F. 1982: Reproduction. In: Sheep and Goat Production, Coop, I.E. (Ed.). Elsevier Scientific, Amesterdam, pp: 57-80.

Dransfield, E., Geoffrey, R. Nute, G.R. McDougall, D.B and Rhodes, D.N. 1979. Effect of breed on eating quality of cross breed lambs. J. Sci. Food Agr., 30: 805-808.

Dransfield, E., Nute, G.R. Hogg, B. W and Walters, B.R. 1990. Carcass and eating quality of ram, castrated ram and ewe lambs. Anim. Prod., 50: 291-299.

Dynnundsson, O. R. 1981. Natural factors affecting puberty and reproductive pdormance in ewe lambs, a review. Livest Rod. Sci. 855. 22-27.

Dunshea, FR., D’Souza, D.N. Pethick, D.W. Harper, G.S and Warner, R.D. 2005. Effects of dietary factors and other metabolic modifiers on quality and nutritional value of meat. Meat Sci 71, 8–38.

Duddy, G., Stanley, D. Semple, S. 2006. Feedlot calculator. In 'Wool Meets Meat; Proceedings of the 2006 Australian Sheep Industry CRC Conference, Orange'. p. 261 (Australian Sheep Industry CRC: Armidale, Australia).

Dung, N.T., N.T. Mui and I. Ledin. 2005. Effect of replacing a commercial concentrate with cassava hay (Manihot esculenta Crantz) on the performance of growing lams. Animal Feed Science and Technology, 119, 271–281.

Dwyer, C. M., Calvert, S.K. Farish, M. Dobavand, J and Pickup, H.E. 2005. Breed litter and parity effects on placental weight and placentome number, and consequences for the neonatal behaviour of the lamb, Theriogenology, 63,4: 1092-1110, ISSN 0093-691X.

Dzakuma, J.M., Nielsen, M.K. and Doane, T.H. 1978. Genetic and phenotypic parameter estimates for growth and wool traits in Hampshire sheep. Journal of Animal Science 47(5): 1014-1021.

Ekiz, B. M. Ozcan and Yilmaz, A. 2005. Estimates of phenotypic and genetic parameters for ewe productivity traits of Turkish Merino (Karacabey Merino) sheep. Turk J. Vet. Anim. Sci. 29:557-564.

El-Fadili  Michaux, C., Detilleux, J and Leroy,P.L. 2003. Genetics parameters for growth traits of the Maroccan Timahdit breed of sheep. Small Ruminant Research 37: 203–208.

Elfadili, M., Michaux, C. Detilleux, J. Leroy, P.L. 1999. Comparison of Matings Using Maroccan Timah- dit and D’man purebreds, first and terminal crosses. 1. Ewe productivity, lambs survival and growth perform- ances. Book of Abstracts, EAAP, 50th Annual Meeting, Zurich, 22–26 August, p. 226.

El-Karim, A.I.A. and Owen, J.B. 1987. Post-weaning growth performance, carcass characteristics and preliminary heritability estimate for some carcass traits of two types of Sudan Desert sheep on intensive feeding.J.agric. Sci. (Camb.).109: 531-538.

Enyew Nigussie, 1999. Body composition and body reserves in indigenous Ethiopian fat tailed sheep breeds. PhD. Thesis, Technische University, Munich, German y. 169p.

Epstein, H. 1996. Biology of reproduction, suckling re- gimes, growth and development. In: The Awassi Sheep with Special Reference to the Improved Dairy Type. Food and Agriculture Organization of the United Na- tions, Rome, pp. 81–140.

Esenbuga, N., Macit, M. Karaoglu, M. Aksakal, V. Aksu, M.I. Yoruk, M.A and Gul, M. 2009. Effect of breed on fattening performance, slaughter and meat quality characteristics of Awassi and Morkaraman lambs. Livestock Sci 123, 255–260.

Esmailizadeh, A. K., Miraei-Ashtiani, S.R. Mokhtari, M.S. and Asadi Fozi, M. 2011. Growth Performance of Crossbred Lambs and Productivity of Kurdi Ewes as Affected by the Sire Breed under Extensive Production System. J. Agr. Sci. Tech. (2011) Vol. 13: 701-708

Fahmy, M. H. 1996. The Romanov. In: Fahmy M.H. (ed.): Prolific Sheep. CAB International, Wallingford, UK.

FAO start. 2012. Quarterly Bulletin of Statistic, Food and Agricultural organization, Rome, Italy . www.fao.org/docrep/012/i0680e/i0680e.pdf

Farid, A. H., Fahmy, M. H. 1996. East Friesian and other European breeds. In: Fahmy M.H. (ed.): Prolific Sheep. CAB International, Wallingford, UK.

Faruk Balcl Emin Karakas. 2007. The Effect of Different Slaughter Weights on the Fattening Performance, Slaughter and Carcass Characteristics of Male Karayaka Lambs Turk. J. Vet. Anim. Sci.; 31(1): 25-31

Faylon, P.S. 1989. Sheep production and Development in the Philippines. Sheep production in Asia P 166-182.

Fitzgerald, J.J. 1996. Grass silage as a basic feed for store lambs. 1. Effect of wilting, chop length and stage of maturity of grass silage on intake and performance of store lambs. Grass and Forage Science 51(4), 363-377.

Forcada, F., Abecia, J.A. 2006. The effect of nutrition on the seasonality of reproduction in ewes. Reprod. Nutr. Dev. 46 ,355–365.

Fourie P.J., Neser, F.W.C. Olivier, J.J and Westhuizen Van der, C. 2002. “Relationship between production performance, visual appraisal and body measurements of young Dorper rams”. South African Journal of Animal Science, 32(4): 256-262.

Fourie, P.J., Vos, P.J.A. and Abiola, S.S. 2009. The influence of supplementary light on Dorper lambs fed intensively. S. Afr. J. Anim. Sci. 39, 211-214.

Freking, B.A. and Leymaster, K.A. 2004. Evaluation of Dorset, Finnsheep, Romanov, Texel, and Montadale breeds of sheep: IV. Survival, growth and carcass traits of F1 lambs. J. Anim. Sci. 82:3144–3153.

Freking, B. A., Leymaster, K.A and Young, L.D. 2000. Evaluation of Dorset, Finnsheep, Romanov, Texel, and Montadale breeds of sheep: I. Effects of ram breed on productivity of ewes of two crossbred populations. J. Anim. Sci. 78:1422–1429.

Fukui, Y., Kohno, H. Okabe, K. Katsuki, S. Yoshizawa, M.Togarit, M. Watanabe, H. 2010: Factors affecting the fertility of ewes after intrauterine insemination with frozen-thawed semen during the non-breeding season. Journal of Reproduction and Development, 56, 4, 460-466.

Gaili, E.S.E., Ghanem, Y.S and Mukhtar, A.M.S. 1972. A comparative study of some carcass characteristics of Sudan Desert Sheep and Goats. J.Anim. Prod., 14: 351-357.

Galloway S.M., Mcnatty, K.P. Cambridge, L.M. 2000: Mutations in anoocyte-derived growth differentiation factor gene (BMP15) cause increased ovulation rate and infertility in a dosage-sensitive manner. Nature Genetics. 25, 279-283.

Gatenby, R. M. 1986. Sheep production in the Tropics and Sub-Tropics. Tropical Agriculture Series. Longman Group Limited.

Gatenby, R. M., Bradford, G. E. Doloksaribu, M. Romjali, E. Pitono, A.D and Sakul, H. 1997. Comparison of Sumatra sheep and three hair sheep crossbreeds. I. Growth, mortality and wool cover of F1 lambs. Small Ruminant Research. 25:1-7.

Gates, P.J. 1993. Non-genetic and breed variation in litter size in the Swedish sheep recording program. Acta Agric. Scand., Section A - Anim. Sci. 43 (3), 144-150.

Gavojdian, D., Cziszter, L.T. Pacala, N and Sauer, M. 2013. Productive and reproductive performance of Dorper and its crossbreds under a Romanian semi-intensive management system. South African Journal of Animal Science.vol. 43, p: 220-227.

Gbangboche, A.B., Adamou-Ndiaye, M. Youssao, A.K.I. Farnir, F. Detilleux, J. Abiola, F.A. Leroy, P.L. 2006. Non-genetic factors affecting the reproduction performance, lamb growth and productivity indices of Djallonke sheep. Small Ruminant Research, Volume 64, Issues 1–2, July 2006, Pages 133–142

Godfrey, R.W. and Weis. A.J. 2005. Post-weaning growth and carcass traits of St. Croix White and Dorper x St. Croix White lambs fed a concentrate diet in the U.S. Virgin Islands. Sheep & Goat Research Journal 20, 32–36.

Gökdal, O., Atay, O. Eren, V. Demircioğlu, S.K. 2012. Fattening performance, carcass and meat quality characteristics of Kivircik male lambs. Trop. Anim. Health Prod., 2012 Oct;44(7):1491-6.

Gökdal, O., Ülker, H. Karakus, F. Cengiz, F. Temur, H and Handil, H. 2004. Growth, feedlot performance and carcass characteristics of Karakas and crossbred lambs (F1) (Ile de France x Akkaraman (G1) x Karakas) under rural farm conditions in Turkey. South African Journal of Animal Science 2004, 34 (4). pp23-232.

Goonewardene, L.A., Agalawatte, M. “A companson of perforomance of pure and crossbred rams.” Indian J Anim Sci 53:517-520, 1983.

Goot, H. 1969. Effect of light on spring breeding of mutton Merino ewes. J. Agric. Sci. Camb. 73, 177–180.

Gootwine, E. and Rozov, A. 2006. Seasonal effects on birth weight of lambs born to prolific ewes maintained under intensive manageent. Livestock Science, 105, 1-3: 277-283, ISSN 1871-1413.

Gopalakrishnan, C.A. and Morleymohanlal, G. 1985. Livestock and Poultry enterprises for rural development. Vikas Publishing House Pvt. Ltd. New Delhi.

Gordon, I. 1997. Controlled Reproduction in Sheep and Goats. Cambridge University Press, Wallingford, UK.

Gorraiz, C., Beriain, M. J. Chasco, J and Iraizoz, M. 1999. Descriptive analysis of meat from meat from growing ruminants. Journal of Sensory Studies (in press).

Grarín,D., Caja, G and Mesia, J. 2001. Effects of the use Gusta XXI ® as a Subsitute of Growth promoters in the intensive Fattening of lambs oftion Mesdeterraneennes Cahier, 54: 181-184.

Gruszecki, T., Lipecka, C and Wiercinski, J. 1994. The contents of fatty acids in the Meat tissue of lambs of various genotypes. Paper presented at the 45th annual meeting of the European Association for Animal Production (EAAP), Edinburgh, U.K, 5-8 September 1994. SS 44.

Gutierrez, J., Rubio, M.S. Mendez, R.D. 2005. Effects of crossbreeding Mexican Pelibuey sheep with Rambouillet and Suffolk on carcass traits. Meat Sci 70,1-5.

Guerra, J.C., Thwaites, C. Jedey. T.N. 1972: The effects of components of body weight on reproductive efficiency in the Merino ewe. J. Agric. Sci., 78: 245-249

Gül, S. and Keskin. M. 2010. Reproductive characteristics of Awassi under Cornell alternate month accelerated lambing systen. Italian Journal of Animal Science; 9:e49 doi:10.4081/ijas.2010.e49.

Gunn, R.G. 1983: The Influence of Nutrition on the Reproductive Performance of Ewes. In: Sheep Production, Haresign, W. (Ed.). Butterworths, London, pp: 99-110.

Hafez, E.S.E. 1952. Studies on the brceding season and rcproductbuoftheewe. J. Agric. Sci. (Camb.)42:189

Hagger, C. 2002. Multitrait and repeatability estimates of random effects on litter size in sheep. Anim. Sci. 74, 209-216.

Hawkins, R. R., Kemp, J.D. Ely, D.G. Fox, J.D. Moody, W.G and Vimini, R.J. 1985. Carcass and meat characteristics of crossbred lambs born to ewes of different genetic types and slaughtered at different weights. Livest. Prod. Sci., 12: 241-250.

Hawkins, P. Steyn, C. McGarrigle, H.H.G. Calder, N.A. Saito, T. Stratford, L.L. Noakes, D.E. Hanson, M.A. 2000. Cardiovascular and hypothalamic-pituitary axis development in late gestation foetal sheep and young lambs following modest maternal nutrient restriction in early gestation. Reproduction, Fertility and Development 12, 443-456.

Haynes, N.B., Schanbacher, B.D. 1983. The control of reproductive activity in the ram. In: Sheep Production. Butterworths, London, pp. 431–451.

Hohenboken, W., Corum, K and Bogart, R. 1976. Genetic, environmental and interaction effects in sheep. I. Reproduction and lamb production per ewe. J. Anim. Sci. 42, 299–306.

Hopkins,D.L., Hegarty, R.S. Walker, P.J and Pethick, D.W. 2006. Relationship between animal age, intramuscular fat, cooking loss, pH, shear force and eating quality of aged meat from sheep. Aust J Exp Agr 46, 879–884.

Hora´k, P., Kola´rˇova´, L and Adema, C.M. 2002. Biology of the schistosome genusTrichobilharzia. Advances in Parasitology52, 155–233. DOI: 10.1016/S0065-308X(02)52012-1.

Horcada, A., Beriain, M.J. Purroy, A. Lizaso, G and Chasco, J. 1998. Effect of sex on meat quality of Spanish lamb breeds (Lacha and Rasa Aragonesa) J. Anim. Sci., 67: 541-547.

Hong, B.J., Broderick, G.A. Koegel, R.G. Shinners, K.J. Straub, R.J. 1986. Intake and digestibility of shredded alfalfa conserved as hay or low moisture silage. Journal of Dairy Science 69(1), 183.

Hue, K.T., D.T.T.Van. and I. Ledin. 2008. Effect of supplementing urea treated rice straw and molasses with different forage species on the performance of lambs. Small Ruminant Research, 78,134–143.

Idris, A.O., Kijora, C. El-Hag, F.M and Salih, A.M. 2010. Effect of dietary supplementation on reproductive performance of Sudanese Desert sheep Livestock Research for Rural Development 22 (8) 2010 http://www.lrrd.org/lrrd22/8/idri22140.htm

Josefina and Combellas. 1980. Production and Reproduction Paramater of Tropical Sheep Breeds in Improved Production Systems, Trop Anim Prod.

Kabir, F., Sultana, M.S. Shahjalal, M. Khan, M and Alam, M.Z. 2004. Effect of Protein Supplementation on Growth Performance in Female Goats and Sheep under Grazing Condition. Pakistan Journal of Nutrition 3 (4): 237-239, 2004.

Kassahun Awgichew. 2000. Comparative performance evaluation of Horro and Menz sheep of Ethiopia under grazing and intensive feeding conditions (M.Sc., Animal Science, University of Wales, UK).

Kaiser, A. Piltz, J. Holst, P. Stanley, D. White, A. 2000. Tips & Tools: Feedbase and pastures:FPO1 Using silage to finish lambs. Meat and Livestock Australia, Sydney Australia.

Kate Phillips and Karen Wheeler. 2008. Final report: Investigation of the variation in lamb quality of winter finishing systems. Ref: XLB1424.

Kearl, L.C. 1982. Nutrient requirements of ruminants indevelopingcountries. International feedstuff Institute, Uttah, USA.

Kefyalew Berihun, Sandip Banerjee and Yigrem, S. 2013. Carcass Traits of Arsi-bale Sheep and Goat Reared under Farmers Management System in Sidama Region of Southern Ethiopia Middle-East Journal of Scientific Research 13 (11): 1465-1470, ISSN 1990-9233

Kemp, J. D., Mahyuddin, M. Ely, D.G Fox, J.D. and Moody, W.G. 1981. Effect of feeding systems, slaughter weight and sex on organic properties, and fatty acid composition of lamb. J. Anim. Sci., 51: 321-330.

Kenney, P.A. 1984. Factors affecting diet selection by sheep.1. Potential intake rate and acceptability of feed. Australian Journal of Agricultural Research 35(4), 551 - 563.

Kirton, A.J. 1976. Body and carcass composition and meat quality of the New Zealand Feral goat. N. Z. J. Agr. Res., 13: 167.

Kochapakdee, S., Pralomkarn, W. Saithanoo, S. Ranhotra, A and Jordan, R.M. 1994. Protein and grazing energy requirements of lambs weaned at 6 to 8 weeks of age with varying levels of supplementary feeding. J. Anim. Sci., 25: 630-635.

Koycegiz, F., Emsen, E. Diaz, C.A.G. Kutluca, M. 2009: Effects of lambing season, lamb breed and ewe parity on production traits of fat tailed sheep and their lambs. J. Anim. Vet. Adv., 8: 195-198.

Koyuncu, M. 2005: Reproductive performance of kivircik ewes on accelerated lambing management. Pak. J. Biol. Sci., 8: 1499-1502

Kumaravelu, N. and Serma Saravana Pandian, A. 2012,«A study on reproductive performance of sheepin field flocks of Tamil Nadu ».International Journal of Food, Agriculture and Veterinary Sciences ISSN: 2277-209X An Online International Journal Available at http://www.cibtech.org/jfav.htm2012 Vol. 2 (3) September-December, pp. 1-7/Kumaravelu and Pandian.

Kuran, M., Onal, A.G. Robinson, J.J. Mackie, K. Speake, B.K and McEvoy, T.G. 1999. A dietary supplement of calcium soaps of fatty acids enhances luteal function in sheep. J. Anim. Sci., 69, 385–393.

Laes-Fettback, C. and Peters, K.J. 1995. A comparative study of performance of Egyptian goat breeds. II. Growth performance and productivity. Arch. Tierz., Dummerstorf. 38 (5):563-575.

Lafi, S.Q., Talafha, A.Q. Giadinis, N. Kalaitzakis, E. Pourliotis, K. Panousis, N. 2009. Factors affecting the reproductive performance of Awassi sheep flocks in north-east of Jordan: an epidemiological study. Tropical animal and health production 2009 Dec;41(8):1755-64. doi: 10.1007/s11250-009-9374-z. Epub 2009 May 21.

Langlands, JP.1973. Milk and herbage intakes by grazing Lambs born to Merino ewes and sired by Meaino, Border leicester, corriedale, Dorset Horn and south Down rams Animal Production 16: 285-291.

Lassoued N., Rekik, M. Mahouachi, M. Ben, H.M. 2004: The effect of nutrition prior to and during mating on ovulation rate, reproductive wastage, and lambing rate in three sheep breeds. Small Ruminant Research, 52, 1-2 , 117-125.

Lavvaf, A., Noshari, A and Farahvash, T. 2012. Evaluation of the Relationship Between Body Measurements and Carcass Traits of Finishing Afshari and Zandi Rams. Asian Journal of Animal and Veterinary Advances, 7: 187-192.

Lawrie, R.A. 1988. Meat Science. Pergamon press, New York.

Lefaucheur, L. 2006. Myofibre typing and its relationships to growth performance and meat quality. Arch Tierz 49, 04-17.

Lincoln, G.A., Davidson, W. 1977. The relationship between sexual and aggressive behaviour, and pituitary and testicular activity during the seasonal sexual cycle of rams, and the influence of photoperiod. J. Reprod. Fertil. 49, 267–276.

Lincoln, G.A., R. V. Short. 1980. Seasonal breeding: nature’s contraceptive. Recent Prog. Horm. Res. 36, 1–51.

Lupton, C.J. 2008. ASAS Centennial Paper: Impacts of animal science research on United States sheep production and predictions for the future. J. Anim. Sci. 2008, 86:3252-3274.

Macias-Cruz, U., Alvarez-Valenzuela, F.D. Correa-Calderon, A. Molina-Ramirez, L. Gonzalez-Reyna, A. Soto-Navarro, S and Avendano-Reyes, L. 2009. Pelibuey ewe productivity and subsequent pre-weaning lamb performance using hair-sheep breeds under a confinement system. J. Appl. Anim. Res.36, 255-260.

Madani T., Chouia, F. Abbas, K. 2009: Effect of oestrus synchronisation and body condition on reproduction of anoestrous ouled djellal ewes. Asian J. Anim. Vet. Adv., 4: 34-40.

Mahmud, A. 2000. Development potential and Animal Genetic Resources Information 2819-25. constraints of hides and skins marketing in Ethiopia. In: R.C. Merkel, G. Abebe and A.L. Goetsch (eds) The Opportunities and Challenges of Enhancing Goat Production in East Africa Conference Proceedings, Debub University, Awassa, Ethiopia, pp: 127-138.

Malhado, C.H.M., Carneiroa, P.L.S. Affonsoa, P.R.A.M. Souza, A.A.O. Jr.b, Sarmentoc, J.L.R. 2009. Growth curves in Dorper sheep crossed with the local Brazilian breeds, Morada Nova, Rabo Largo, and Santa Inês. Small Ruminant Research

Malik, B. S. and Singh, R.P. 2006. Evaluation of Crossbreeding Effects for Wool Traits in Sheep. Asian-Aust. J. Anim. Sci. 19(11):1536-1540.

Malik, R.C.; Singh, R.N. Acharya, R.M. 1980. “Breeding for improving wool production.” Trop Anim HIth Prod 12:177-183.

Marai, I.F.M., Bahgat, L.B. Shalaby, T.H and Abdel-Hafez, M.A. 2000. Response of Male Lambs to Concentrate Mixtures given withor without Natural Clay under Egypt Conditions. Annals of Arid Zone,Vol.39, No.4, pp. 449-460.

Marai, I.F.M., El- Darawany, A.A. Abou-Fandoud, A.I and Abdel-Hafez, M.A.M. 2006. Serum blood components during pre-oestrus, oestrus and pregnancy phases in Egyptian Artificial Insemination in Farm Animals Egyptian Journal of Sheep, Goat and Desert Animals Sciences (2006) 1(1): 47-62

Marai, I.F.M., El- Darawany, A.A. Abou-Fandoud, E.I and Abdel-Hafez, M.A.M. 2004. Reproductive traits and the physiological background of the seasonal variations in Egyptian suffolk ewes under the conditions of Egypt. Annals of Arid Zone, Vol. 43, No.2, (June), pp. 177-183.

Marai, I.F.M., El-Darawany, A.A. Fadiel, A and Abdel-Hafez, M.A.M. 2007. Physiological traits as affected by heat stress in sheep-A review. Small Ruminant Research Vol. 71, No.1-3, (August), pp 1-12.

Margetin, M., Malik, J. Eapistrak, A. 1988. Úžitkovos’ kfížencov cigajských oviec s východof rízskym plemenom a sovietskou cigájou. Zá-vëreèná zpráva, VÚO, Trenèín.

Maria G.A. and Ascaso, M.S. 1999. Litter size, lambing interval and lamb mortality of Salz, Rasa Aragonesa, Romanov and F1 ewes on accelerated lambing management. Small Rum. Res. 32:67-172.

Maria Sauer, Walter Ioan Sauer, Raducu Radu, Dinu Gavojdian, Ioan Padeanu, Sorin Voia, Doru Ratiu. 2012. Academic Journal. Scientific Papers: Animal Science & Biotechnologies / Lucrari St; Dec2012, Vol. 45 Issue 2, p475

Maria Sauer, Walter Ioan Sauer, Raducu Radu, Dinu Gavojdian, Ioan Padeanu, Sorin Voia, Doru Ratiu. 2011. Study on the Effects of Crossbreeding the Turcana Ewes with Lacaune Rams and Performance of F1 Lacaune x Turcana throughout First Lactation. Animal Science and Biotechnologies, 2011, 44 (2). Pp: 390-393.

Martinez, A. 1983. Reproduction and growth of hair sheep in an experimental flock in Venezuela. In: Fitzhugh, H. A. and Bradford, G. E. (eds.). Hair sheep of Western Africa and the Americas. A genetic resource for the Tropics. A Winrock International Study. Westview Press/ Boulder, Colorado. pp: 105-113.

Martin,G.B., Oldham, C.M. Cognié, Y and pearce, D.T. 1986. The physiological responses of anovulatory ewes to the introduction of rams: areview. Livestock Prod, Sci.15,219-247. Doi: 10.1016/0301-6226 (86) 90031-X.

Matin, G.B. and Walkdent –Brown, S.W. 1995. Nutritional influences on Reproduction inmature male sheep and goats J.Repod.Fertil.Suppl.49, 437-449.

Mai, N.T., N.N. Hien and Binh.V.D. 2005. Phan Rang sheep production in Ninh Thuan province. Pape for Small Ruminant. Workshop in Hanoi 2-4 March 2005.

May, M.L. 1976. Histological and histochemical evaluations of bovine longissimus muscle from different cattle types as related to carcass retail yield, meat quality and palatability. Dissertation Abstracts International B., 36(8): 3688.

McClure, K. E., Van Keuren, R.W and Althouse, P.G. 1994. Perfor-mance and carcass characteristics of weaned lambs either grazed on orchardgrass, ryegrass, or alfalfa or fed all-concentrate diets in drylot. J. Anim. Sci. 72:3230–3237.

McClure, K.E., Solomon, M.G. Parrett, N.A and Van Keuren, R.W. 1995. Growth and tissue accretion of lambs fed concentrate in drylot, grazed on alfalfa or ryegrass at weaning, or after back-grounding on ryegrass. J. Anim. Sci. 73:3437–3444.

McDonald, P.R.A., Edwards, J.F. Greenhalgh, D and Morgan, C.A. 1995. Animal Nutrition (5th edition). Longman Group Limited, London.

Mendel, C., Scholaut, W and Pirchner, F. 1989. Performance of Merinolandschaf and Bergschaf under an Accelerated Lambing System. Livestock Production Science. 21:131-14

Milan P., Petrovic, D.M. Ruzic, M. Violeta, C.P and Nevena, M. 2011. Influence of environmental factors on birth weight variability of indigenous Serbian breeds of sheep. Afric. J. Biotec. 10,4673-4676. Sci., 22(8): 1140-1150.

Minitab 16. 2010. Statistical Software. Minitab Inc., USA.

Mioè, B., Pavi, V.I. Vnuèec, Z. Prpi, A and Suši, V. 2007. Effect of olive cake on daily gain, carcass characteristics and chemical composition of lamb meat. Czech J. Anim. Sci., 52(2): 31-36.

Miranda-de la Lama, G.C., Villarrol, M. Olleta, J.L. Alierta, S. Sanudo, C and Maria, G.A. 2009. Effect of pre-slaughter logistic chain on meat qulity of lambs. Meat Sci 83, 604-609.

Mohammed, S. A., Razzaque, M.A. Malik, R.C and Al-Khozam, N.M. 2009. Carcass Composition of Crossbred and Straightbred Lambs Finished on a High Concentrate Diet. Pakistan Journal of Nutrition 8 (4): 345-348, 2009

Momani shaker, M., Abdullah, A.Y. Kridli, R.T. Blaha, J. Šada, I. 2003. Influence of the nutrition lev- el on fattening and carcass characteristics of Awassi ram lambs. Czech Journal of Animal Science, 47 (11): 466–474.

Momani shaker, M., Abdullah, A.Y. Kridli, R.I. Šada, I. Sovjak, R. 2002. Effect of crossing indigenous Awassi sheep breed with mutton and prolific sire breeds on growth performance of lambs in subtropical re- gion. Czech Journal of Animal Science, 47 (6): 247–252.

Momani Shaker, M., Abdullah, A.Y. Kridi, R.T. Blaha, J. Šáda, I and Sovjak, R. 2002. Fattening performance and carcass value of Awassi ram lambs, F crossbreds of Romanov × Awassi and Charollais × Awassi in Jordan. Czech J. Anim. Sci., 47(10): 429-38 .

Momanishaker, M., Kridlir, T. Abdullah, A.Y. Malinova, M. Sanogo, S. Šada, I. Lukesova, D. 2010. Effect of crossbreeding European sheep breeds with Awassi on growth efficiency of lambs in Jordan. Agricultura Tropica et subtropica, Vol 43 (2), 2010. Pp: 127-133.

Mousa, M.R.M. 2011. Effect of feeding Acacia as supplements on the nutrient digestion growth performance, carcass traits and some blood constituents of Awassi lambs under the conditions of North Sinai. Asian Journal of Animal Sciences, 5(2): 102-117.

Movarogenis A.P. and Constantinou, A.1986. Performance evaluation of purebreed and crossbred lambs. Technical Bulletin 77, Agricultural Research Institute, Nicosia, 5 pp.

Mtenga L.A and Kitalyi. A.J. 1990. Performance and carcass composition of Tanzania goats fed Chloris gayanahay with supplements containingdifferent levels of protein. Small Ruminant Research 31-8.

Muhammad, N., Maigandi, S.A. Hassan, W.A and Daneji, A.I. 2008. Growth performance and economics of sheep production with varying levels of rice milling waste /Sokoto Journal of Veterinary Sciences. 7(1): 59-64.

Mukherjee, T.K. 2000. Final Consultancy Report on Goat and Sheep Production. Agriculture Research Management Project (BLRI Part) IDA, Credit No. 2815 BD, Bangladesh Livestock Research Institute, Savar Dhaka-1341, Bangladesh.

Mulsant P., Lecerf, F. Fabre, S. Schibler, L. Monget, P. Lanneluc, I. Pisselet, C.Riquet, J. Monniaux, D . Callebaut, I. Cribiu, E. Thimonier, J. Teyssier, J. Bodin, L. Cognie, Y. Elsen, J.M. 2001: Mutation in bone morphogenetic protein receptor-1B is associated with increased ovulation rate in Booroola Merino ewes, Proc. Natl. Acad. Sci. 98, 5104–5109.

Munoz, C., Carson, A.F. McCoy, M.A. Dawson, L. E. R. Wylie, A. R. G and Gordon, A.W. 2009. Effects of plane of nutrition of ewes in early and mid-pregnancy on performance of the offspring: female reproduction and male carcass characteristics. J. Anim. Sci., 87, 3647–3655.

Naqvi, S.M.K., Maurya, V.P. Gulyani, R. Joshi, A. Mittal, J.P. 2004. Effect of thermal stress on superovulatory response and embryo production in Bharat Merino ewes. Small Ruminant Res. 55:57-63.

Natasasmita, Asikin, 1968. Reproductive activity of Priangan ewes. Research Journal B-series, (1): 15–19.

Notter, D.R., Kelly, R.F and McC laugherty, F.S. 1991. Effects of ewe breed and management system on efficiency of lamb production. II. Lamb growth, survival and carcass characteristics. J. Anim. Sci., 69 (1):22-33.

Notter, D.R. 2000. Effects of ewe age and season of lambing on prolificacy in U.S. Targhee, Suffolk, and Polypay sheep. Small Ruminant Res. 38:1-7

Notter, D.R. and Copenhaver, J.S. 1980. Performance of Finnish Landrace crossbred ewes under accelerated lambing. II. Lamb growth and survival. Journal of Animal Science. 51(5):1043-1050.

Ocak, N., Cam, M.A and Kuran, M. 2006. The influence of pre and post-mating protein supplementation on reproductive performance in ewes maintained on rangeland. Small Rum Res 64, 16–21.

Oregui, L.M., Gabina, D. Vicente, M.S. Bravo, M.V. Treacher, T. 1997. Relationships between body condition score, body weight and internal fat deposits in Latxa ewes. Anim. Sci., 65: 63-69.

Orr, R.M. 1982. Animal production . Animal physiology. In: Haaley, R. T. (ed.) The Agricultural Note Book 17th edition. Butterworths and Co. (Publishers) Ltd., London. pp. 305-318.

Ortavant, R., Pelletier, J. Ravault, J.P. Thimonier, J. Volland-Nail, P. 1985. Photoperiod: main proximal and distal factor of the circannual cycle of reproduction in farm mammals. Oxford Rev. Reprod. Biol. 7, 306–345.

Osikowski , M. and Borys, B.1976. Effect on production and carcass quality characteristics of whether lambs of crossing Blackheaded Mutton Ile de France and Texel rams with Polish Merino ewes. Livest Prod Sci 4, 343-349.

Olivier, J.J., Marais, P.G. Cloete, J.A.N. 1984. Evaluering van verskillende raskruisings in die ontwikkeling van 'n witwolv-leisras: Die Afrino (Afrikaans). S. Afr. J. Anim. Sci. 14, 105-109.

Ouali, A. 1991. Sensory quality of meat as affected by muscle biochemistry and modern technologies. In: Animal Biotechnology and the Quality of Meat Production, Fiems, L. O., Cottyn, B. G. and Demeyer, D. I. (eds). Elsevier, Amsterdam, pp. 85-105.

Pajor, F., Láczó, E. Erdös, O and Póti. 2009. Effects of crossbreeding Hungarian Merino sheep with Suffolk and Ile de France on carcass traits. Archiv Tierzucht 52 (2009) 2, 169-176, ISSN 0003-9438.

Paulenz, H., Adnoy, T. Fossen, O.H. Soderquist, L. Berg, K.A. 2002: Effect of deposition site and sperm number on the fertility of sheep inseminated with liquid semen. Veterinary Record, 150, 10,42 -49

Pelletier, J. and Almeida, G. 1987. Short light cycles induce persistent reproductive activity in Ile-de-France rams. J. Reprod. Fertil. Suppl. 34, 215–226.

Petrovic, P.M., ŽujoVicm, D. Negovanovic, D. Muslicruzic, D. Strsoglavec, S. 2002: Some aspects of modern organizations selection procedures in sheep. Contemporary Agriculture.51, 3-4. 155-150.

Petrovic, P.M., Žujovicm, D. Negovanovica, D. Vlahovic, M. Mekic, C. Alavantic, D. 1997: Status and prospects of sheep breeding in Serbia. Biotechnology in Animal Husbandry. 3-4, 83-87.

Petrovic, M.P., RuŽic-Muslicd, Žujovicm, Mekicc. 2007: Genetic improvement of fertility in sheep byselection according to physiological parameters. Biotechnology in animal husbandry. 23, 311 – 321.

Petrovic, P.M. 2000: Genetics and Improvement of Sheep (monograph).Scientific Book, Belgrade, 365 pp.

Petrovic,P.M., Žujovicm, D. Negovanovic, S. Strsoglavec, D. Ruzic. 2001: The importance of new selection methods in modern system of sheep breeding. Biotechnology in Animal Husbandry. 17, 159-167

Petrovic,V., Petrovic, C. Ruzic Muslic, D. Maksimovic, N. Ilic, Z. Milosevic, B. Stojkovic, J. 2012. Some important factors afecting fertility in sheep. Biotechnology in Animal Husbandry 28 (3), p 517-528, 2012.

Pommier, S.A., Fahmy, M.H. Poste, L.M and Butler, G. 1989. Effect of sex, electrical stimulation and conditioning time on carcass and meat characteristics of Romanov lambs. Food Quality and Preference, 1: 127-132.

Pouliot, E´., Garie´py, C. The´riault, M. Avezard, C. Fortin, J and F.W. Castonguay. F.W. 2009. Growth performance, carcass traits and meat quality of heavy lambs reared in a warm or cold environment during winter.Can. J. Anim. Sci.89: 229-239.

Pradhan, K.1989. Sheep Production and Development in Nepal Sheep Production in Asia. Proceedings of the Workshop on sheep production in Asia Pcarrd, LosBanos Laguna, Pilippines Book Series No 80:153-165.

Rafat S. A. and Shodja, J. 2010. A review: Rerearch progress of crossbreeing of Arkhar-merino with local breeds in Iran. 8th World Merino Conference, May 3-5, 2010, Rambouillet, France.Pp: 5-10.

Rastogi, R. K., Keens-Dumas, M.J and Lauckner, F.B. 1993. Comparative performance of several breeds of Caribean hair sheep in pure breeding and crossbreeding. Small Ruminant Research. 9:353-366.

Rattray, P.V., Morrison, H.C.L and Oliver, T.W. 1975. The effect of lambing date on lamb growth rate ewe live weight and some observations on ewe milk production Proceedings of the New Zealand Society of Animal Production 53:138-143

Rhind, S.M.1992. Nutrition: its effects on reproductive performance and its hormonal control in female sheep and goats. In: Speedy AW (ed.), Progress in Sheep and Goat Research. CAB International, Oxford, pp. 25.

Roberts, J.A. 2000. Frequency of the prolificacy gene in flocks of Indonesian thin tail sheep: a review. Small Rum. Res. 36:215-226.

Robinson, J.J. 1981. Photoperiodic and nutritional influences on the reproductive performance of ewes in accelerated lambing systems. In: Proceedings of the 32nd Annual Meeting of the European Association for Animal Production, vol. III-2. Zagreb,31 August–3 September, pp. 1–10.

Robinson, J.J. 1996. Nutrition and reproduction. Anim. Reprod. Sci. 42, 25–34.

Romedi ÇELİK, Alper Yilmaz. 2010. Certain meat quality characteristics of Awassi and Turkish Merino × Awassi (F1) lambs. Turk. J. Vet. Anim. Sci. 2010; 34(4): 349-357

Roque, A.P., Osorio, S.J.C-da, P.O. Jardim, N.M. Oliveira De, M.T.M. Osorio, Da-S. Osorio, J.C and De-Oliveira, N.M. 1999. Meat production in five lambs breeds 6. Relative development. Ciencia- Rural, 29(3): 549-53. (CAB. Abst. 1998/08-2000/07).

Rosa, H.J.D and M.J. Bryant. 2003. Seasonality of reproduction in sheep. Small Ruminant Research 48155-171.

Rousset-Akrim, S., O.A. Young and J.L. Berdague. 1997. Diet and growth effects in panel assessment of sheepmeat odour and flavour. Meat Sci., 45: 169-181.

Ruvuna, F., Taylor, J.F. Okeyo, M. Wanyoike, M and Ahuya, C. 1992. Effects of feed and castration on slaughter weight and carcass composition of goats. Small Ruminant Research.7: 175-183.

Sandip Banerjee. 2011. Carcass Composition of Shahabadi Sheep Reared on Natural Pastures in Hot and Humid Climate of Eastern India World Applied Sciences Journal 14 (4): 506-509, ISSN 1818-4952

Sañudo, C., Sánchez, A and Alfonso, M. 1998a. Small ruminants production systems and factors affecting lamb meat quality. Meat Science, 49-Suppl.(1): S29-S64.

Scammell, J., Wallace, A. Jolly, S. 2006. Agricultural Experience Review. Productive Nutrition, Walkerville, South Australia.

Schanbacher, B.D., Lunstra, D.D. 1976. Seasonal changes in sexual activity and serum levels of LH and testosterone in Finnish Landrace and Suffolk rams. J. Anim. Sci. 43, 644–650.

Schoeman, S.J. and Burger, R. 1992. Performance of Dorper sheep under an accelerated lambing system.Small Rumin. Res. 9, 265.

Schoeman, S.J. 2000. A comparative assessment of Dorper sheep in different production environments and systems. Small Rumin. Res. 36, 137-146.

Searle, T.W., Graham, N.M and O’Callaghan, M. 1972. The chemical composition of the body. J. Agric. Sci. 79:371-382.

Seideman, S. C. and Crouse, J.D. 1986. The effects of sex condition, genotype and diet o n bovine muscle fibre characteristics. Meat Sci., 17: 55-72.

Sen U., Sirin, E. Ulutas, Z and Kuran, M. 2011. Fattening performance, slaughter, carcass and meat quality traits of Karayaka lambs. Trop Anim Health Prod 43, 409–416.

Seyoum Bedie and Zinash Sileshi. 1989.The composition of Ethiopian feed stuffs Research report no.6.Institute of agriculture research (IAR), Addis Ababa, Ethiopia.33p.

Shackelford, S.D., Leymaster, K.A. Wheeler, T.L and Koohmaraie, M. 2005. Lamb meat quality progress report number 1. Preliminary results of an evaluation of effects of breed of sire on carcass composition and sensory traits of lamb. http://www.ars.usda.gov/sp2UserFiles/Place/54380530/Publications/LambMeatQualityReportNumber1.pdf.

Shahjalal, Md., Galbraith, H and Topps, J.H. 1992. The effect of changes in dietary protein and energy on growth, body composition and mohair fibre characteristics of British Angora goats. Animal Production. 54:405-412.

Shelton, M. 2000. Reproductive performance of sheep exposed to hot environments. Malik 186 Suffolk as affected by heat stress, under the conditions of Egypt. Egypt Journal of Sheep and Goats Desertic Animal Science, Vol.1, No.1, pp. 47-62.

Shrestha, J.N.B. and Heaney, D.P. 2004. Review of Canadian, Outaouais and Rideau Arcott breeds of sheep: Crossbreeding, registration and subsequent release to the Canadian sheep industry. Small Rum. Res.55: 1-13.

Shrestha, J.N.B., Boylan, W.J and Rempel, W.E. 2008a. Evaluation of sheep genetic resources in North America: Lamb productivity of purebred, crossbred and synthetic populations. Can. J. Anim. Sci., 88: 391-398

Sidwell, G.M., and Miller, L.R. 1971. Production in some pure breeds of sheep and their crosses. III. Production indexes in ewes. J. Anim. Sci. 32:1095–1098.

Silva, P.M., da Quitana, W. N. M. Teixeira, L. H. D. Costanzi, A.R and Rogrigues, C.O. 1980. Effect of castration in sheep. In Pesquisa em ovinos no Brasil1975-1979, p.101.

Singh, V.K and Karim, S.A. 2003: Emerging trends in meat production from sheep and its export potential. In: Proceedings of the Interaction Seminar on “Meat production and export potential: Impact of globalization and quality concepts,” 17 September, Central Institute for Research on Goats, Makhdoom, Farah, Mathura (UP), India pp. 18-30.

Smith, J.F.1991. A review of recent developments on the effect of nutrition on vulation rate (the flushing effect with particular referrence to research at Ruakura.ProcNZ soc Anim Prod,51,15-23.

Smith, A., Calder, A.G. Lough, A.K and Duncan, W.R. 1979. Identification of methyl-branched fatty acids from the triacylglycerols of subcutaneous adipose tissue of lambs. Lipids, 14: 953- 960.

Smith, G.C., Dutson, T.R. Hostetler, R.L and Carpenter, Z.L. 1976. Fatness, rate of chilling and tenderness of lambs. J. Food Sci., 41: 748-756.

Snowder, G.D and Duckett, S.K. 2003. Evaluation of the South African Dorper as a terminal sire breed for growth, carcass, and palatability characteristics J ANIM SCJ 2003, 81:368-375. http://www.journalofanimalscience.org/content/81/2/368.

Snowder, G.D., Glimp, H.A and R.A. Field, R.A. 1994. Carcass characteristics and optimal slaughter weights in four breeds of sheep. J. Anim. Sci., 72: 932-937.

Sodiq, A., Yuwono, P and Santosa, S.A. 2011. Litter Size and Lamb Survivability of Batur Sheep in Upland Areas of Banjarnegara Regency, Indonesia No. 60, Po. Box 110, Purwokerto 53122, Jawa-Tengah, Indonesia Animal Production 13(3):166-172

Solomon, M., Kemp, J. Moody, W. Ely, D and Fox, J. 1980. Effect of breed and slaughter weight on physical, chemical and organoleptic properties of lamb carcasses. J. Anim. Sci., 51: 1102-1107.

Solomon Gizaw, Solomon Abegaz, and Yohannes Gojam. 1995. Factors affecting preweaning survival of Horro lambs at Bako Research Center. In: Proceedings of The Third National Conference of Ethiopian Society of Animal Production (ESAP), Addis Ababa. ESAP. pp: 140-145.

Souza, C.J., Macdougall, C. Campbell, B.K. Mcneilly, A.S. Baird, D.T. 2001: The Booroola (FecB) phenotype is associated with a mutation in the bone morphogenetic receptor type 1 B (BMPR1B) gene. Journal of Endocrinology. 169, 1–6.

Srivastava, V.K. and Roy, A. 1971. The influence of season, birth, age and nutrition on the organ weights of Magra lambs. Indian J. Anim. Sci., 41: 1060-65.

Stanton, T.L and LeValley, S.B. 2006. Lamb feedlot nutrition, Colorado State University Cooperative Extension.Retrieved 26 April 2006 from http://www.ext.colostate.edu/PUBS/livestk/01613.html

Streitz, E., Baulain, U and Kallweit,E. 1994. Estimation of body composition in live lambs by means of Magnetic Resonance Imaging (MRI).Paper presented at the 45th Annual meeting of the European Association for Animal Production (EAAP).5-8 September, Edinburgh, UK.

Stobart, R.H., Bassett, J.W. Cartwright, T.C and Blackwell, R.L. 1986. An analysis of body weights and maturing patterns in Western Range ewes. Journal of Animal Science 63 (3): 729-740.

Štolc, L., Ptáček, M. Stádník, L. Lux, M. 2011. Effect of selected factors on basic reproduction, growth and carcass traits and meat production in Texel sheep. Acta universitatis agriculturae et silviculturae. Mendelianae. Brunensis., 2011, Vol: LIX 29, No. 5, pp. 247-252.

Sultana, N., Hossain, S.M.J. Chowdhury, S.A. Hassan, M.R and Ershaduzzaman, M. 2010. Effects of age on intake, growth, nutrient utilization and carcass characteristics of castrated na-tive sheep. Goat and Sheep Production Research Division, Bangladesh Livestock Research Institute, Savar, Dhaka-1341, Bangladesh Bangl. Vet. 27,62-73.

Susic, V., Pavic, V. Mioc, B. Stokovic, I and Ekert Kabalin, A. 2005. Seasonal variations in lambs birth weight and mortality. Vet. Arhiv. 75, 375–381.

Tafa, A., Melaku, S and Peters, K.J. 2010. Africa. Supplementation with linseed (Linum usitatissimum) cake and/or wheat bran on feed utilization and carcass characteristics of Arsi-Bale sheep. Trop Anim. Health Prod., 42(4): 677-685.

Taylor and Francis. 2002. Effects of feeding limited roughage to sheep on Ewe performance economic a spects and behaviour. Aceepted december 8, 2001 Acta Agric. Scand., Sect. A, Animal Sci 52: 65-71.

Terrill, C. E. and Maijala, K. 1991. Breed comparisons for meat production in sheep. In: Maijala, K (ed.). 1991. Genetic resources of pig, sheep and goat. World Animal Science. B8:257-276.

Thatcher, L.P.and Gaunt, G.M. 1992. Effects of growth path and post-slaughter Chilling regime on carcass composition and meat quality of ewe lambs. Australian J. Agri.Res. 43: 819-830.

Tibbo, M. and Tefera, G. 2004. Phenotypic characteristics of the Bonga sheep in Keffa Zone. Field Mission Report. Animal Genetic Resources, ILRI, Addis Ababa. 8 pp.

Tibbo, M. 2006. Productivity and health of indigenous sheep breeds and crossbreds in the central Ethiopian highlands. Doctoral dissertation. ISSN 1652-6880, ISBN 91-576-7100-1

Tuah, A.K. and Baah, J. 1985. Reproductive performance, pre-weaning growth rate and pre-weaning lamb mortality of Djallonke sheep in Ghana. Tropical Animal Health and Production. 17(2):107-113.

Turner, H.N. 1977. Anim. Breed Abstrre.45: 9

Ugur Sen., Mehmet Kuran and Umran Ensoy. 2013. Growth performance, carcass and meat quality of Karayaka female lambs born in different seasons. Faculty of Agriculture, Ondokuz Mayis University, Samsun, Turkey, Faculty of Engineering and Natural Sciences, Gaziosmanpasa University, Tokat, Turkey Archiv Tierzucht 56;31 doi: 10.7482/0003-9438-56-031

Unal, N., Akcapınar, H. Atasoy, F and Aytac, M. 2006. Some reproductive and growth traits of crossbred genotypes produced by crossing local sheep breeds of Kivircik x White Karaman and Chios x White Karaman in steppe conditions. Arch Tierz 49 , 55-63.

Valencia, Z.M., Castillo, H and Berruecos, J. 1975. Reproduccion y Manejo del borrego Tabasco o Peliguey,Tecnica Pecuaria 66-72.

Valencia, Z.M., Salinas, T.E and Berruecos, V.J.M. 1974b. Crecimiento y productividad del borrego Tabasco o Peliüey al ano de edad. 11 a Reunión Annual del INIP,p.2. Sheep and Goat.

Villete, Y. and Theriez, M. 1981. Influence of birth weight on lamb performance at slaughter.2.Carcass and chemical composition of lambs slaughtered at the same weight. Annales-de-Zootechnic.30(2): 169-18.

Vivien-Roels, B., Pévet, P. 1983. The pineal gland and the synchronization of reproductive cycles with variations of the environmental climatic conditions, with special reference to temperature. Pineal Res. Rev. 1, 91–143.

Walstra, P. and de Greef., K.H. 1995. Aspects of development and body composition in pigs.In: Ender, K (ed.).Proceedings of 2nd Dummerstorf muscle-workshop.Muscle growth and meat quality. Rostock, 17-19 May, 1995. pp. 183-1

Wan Mohamed, W.E. 1987. Integration of small ruminants with rubber and oil palm cultivation in Malaysia. In: Small Ruminants Pro­ duction Systems in South and Southeast Asia: Proceedings, Bogor, Indonesia, October 6-10, 1986. Edited by C. Devendra. Ottawa: International Development Research Centre, 1987. pp. 239-256.

Wayne, N.L., Malpaux, B. Karsch, F.J. 1989. Social cues can play a role in timing onset of the breeding season of the ewe. J. Reprod. Fertil. 87, 707–713.

Wilson, R.T. and Light, D. 1986. Livestock production in central Mali: Economic characters and productivity indices for tradi-tionally managed goats and sheep. J. Anim. Sci. 62:567–575.

Yilmaz, O., Denk, H and Bayram, D. 2007. Effects of lambing season, sex and birth type on growth performance in Norduz lambs. Small Rum. Res. 68, 336–339.

Young, O. A., Berdague, J.L. Viallon, C. Rousset-Akrim, S and Theriez, M. 1997. Fat-borne volatiles and sheepmeat odour. Meat Sci., 45: 183-200.