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Awassi sheep reproduction and milk production: review

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Abstract

Awassi is the local breed of sheep in Jordan and is the most important breed in the semi-arid regions of the near east countries. Awassi ram and ewe lambs reach puberty at around 8 and 9 months of age, respectively. The breeding season of Awassi ewes starts as early as April and lasts through September. After puberty, Awassi rams are sexually active throughout the year. The normal estrous cycle in Awassi ewes is 15–20 days (average 17 days). Estrus ranges from 16–59 h (average 29 h) during the breeding season. The reproductive performance of unimproved Awassi sheep has been low while improved Awassi has the highest fertility and milk production and are the heaviest among all Awassi populations. The gestation length varies from 149 to 155 days (average 152 days). Hormones that are commonly used for induction and synchronization of estrus in Awassi ewes include progestins, gonadotropins and PGF2α. An Awassi ewe produces 40–60 and 70–80 kg of milk per 150-day lactation period under traditional and improved production systems, respectively, in addition to the suckled milk left for lambs until weaning. The improved Awassi has the highest milk production among all Awassi populations and may reach 506 L over 214-day lactation period. The objective of this review is to summarize the reproductive pattern and milk production of Awassi sheep in the Middle East region.

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References

  • Abdullah, A.Y., Husein, M.Q., Kridli, R.T., 2002. Protocols for estrus synchronization in Awassi ewes under arid conditions. Asian-Australasian Journal of Animal Sciences, 15, 957–962.

    Google Scholar 

  • Abu Zanat, M.M., Mekdadi, H.A., Tabbaa, M.J., 2005. Production systems of small ruminants in middle badia of Jordan. Dirasat, 32, 205–213.

    Google Scholar 

  • Al-Merestani, M.R., Zarkawi, M., Wardeh, M., 1999. Early Breeding and Pregnancy Diagnosis in Syrian Awassi Sheep Yearlings. Reproduction in Domestic Animals, 34, 413–416.

    Article  CAS  Google Scholar 

  • Al-Molla, M.M., Kridli, R.T., 2003. Effect of royal jelly on puberty of winter-born Awassi ewe lambs. In: Proc. 54th Annual Meet. EAAP, Book of Abstracts, Roma, Italy, p. 325.

  • Alnimer, M.A., Tabbaa, M.J., Amasheh, M., Alzyoud, H., 2005. Hormonal treatments and the ram effect on synchronised oestrus in Awassi ewes at the beginning of the breeding season. New Zealand Journal of Agricultural Research, 48, 473–480

    Article  CAS  Google Scholar 

  • Amer, H.A., Hazzaa, A.M., 2009. The effect of different progesterone protocols on the reproductive efficiency of ewes during the non-breeding season. Veterinarski Arhiv, 79, 19–30.

    CAS  Google Scholar 

  • Arendt, J., 1998. Melatonin and the pineal gland: influence on mammalian seasonal and circadian physiology. Reviews of Reproduction, 3, 13–22.

    Article  PubMed  CAS  Google Scholar 

  • Bartlewski, P.M., Beard, A.P., Cook, S.J., Chandolia, R.K., Honaramooz, A., Rawlings, N.C., 1999. Ovarian antral follicular dynamics and their relationships with endocrine variables throughout the oestrous cycle in breeds of sheep differing in prolificacy. Journal of Rreproduction and Fertility, 115, 111–124.

    Article  CAS  Google Scholar 

  • Bartlewski, P.M., Beard, A.P., Rawlings, N.C., 2000. An ultrasound-aided study of temporal relationships between the patterns of LH/FSH secretion, development of ovulatory-sized antral follicles and formation of corpora lutea in ewes. Theriogenology, 54, 229–245.

    Article  PubMed  CAS  Google Scholar 

  • Bazer, F., Cunninham, W., Marsh, D., 2007. Pregnancy diagnosis. In: Youngquest, R.S., Threlfall, W.R. (Eds.) Current therapy in large animal theriogenology. Saunders Elsevier, St. Louis, pp. 661–666.

    Chapter  Google Scholar 

  • Chemineau, P., Malpaux, B., Delegadillo, J.A., Gue’rin, Y., Ravault, J.P., Thimonier, J., Pelletier, J., 1992. Control of sheep and goat reproduction: use of light and melatonin. Animal Reproduction Science, 30, 157–184.

    Article  Google Scholar 

  • Degen, A.A., Benjamin, R.W., 2003. Milk intake and growth rate of Awassi lambs sucking ewes grazing on natural pasture in the semi-arid Negev. Animal Science, 76, 455–460.

    Google Scholar 

  • Doize, F., Vaillancourt, D., Carabin, H., Belanger, D., 1997. Determination of gestational age in sheep and goats using transrectal ultrasonographic measurement of placentomes. Theriogenology, 48, 449–460.

    Article  PubMed  CAS  Google Scholar 

  • Dufour, J.J., Fahmy, M.H., Minvielle, F., 1984. Seasonal Changes in Breeding Activity, Testicular Size, Testosterone Concentration and Seminal Characteristics in Rams with Long or Short Breeding Season. Journal of Animal Science, 58, 416–422.

    PubMed  CAS  Google Scholar 

  • Epstein, H., 1985. The Awassi sheep with special reference to the improved dairy type. Food and Agriculture Organization of the United Nations, Rome.

    Google Scholar 

  • Galal, S., Gürsoy, O., Shaat, I., 2008. Awassi sheep as a genetic resource and efforts for their genetic improvement—A review. Small Ruminant Research, 79, 99–108.

    Article  Google Scholar 

  • Gonzalez, B. A., Santiago, M. J., Lopez, S. A., 1998. Estimation of fetal development in Manchega dairy ewes by transrectal ultrasonographic measurements. Small Ruminant Research, 27, 243–250.

    Article  Google Scholar 

  • Gootwine, E., Pollott, G.E., 2000. Factors affecting milk production in Improved Awassi dairy ewes. Animal Science, 71, 607–615.

    Google Scholar 

  • Gootwine, E., Zenu, A., Bor, A., Yossafi, S., Rosov, A., Pollott, G.E., 2001. Genetic and economic analysis of introgressing the B allele of the FecB (Booroola) gene into Awassi and Assaf dairy breeds. Livestock Production Science, 71, 49–58.

    Article  Google Scholar 

  • Gürsoy, O., 2005. Small ruminant breeds of Turkey. In: Characterization of the Small Ruminant Breeds in West Asia and North Africa. Vol. 1. West Asia (L. Iniguez ed.). International Center for Agricultural Research in the Dry Areas(ICARDA), Aleppo, Syria. p: 239–416.

  • Hailat, N., 2005. Small ruminant breeds of Jordan, In: Iniguez, L. (Ed.) Characterization of Small Ruminant Breeds in West Asia, North Africa, West Asia. ICARDA, Aleppo, pp. 30–61.

    Google Scholar 

  • Hamadeh, S.K., Abi Said, M., Tami, F., Barbour, E.K., 2001. Weaning and the ram-effect on fertility, serum luteinizing hormone and prolactin levels in spring rebreeding of postpartum Awassi ewes. Small Ruminant Research, 41, 191–194.

    Article  PubMed  Google Scholar 

  • Husein, M.Q., Haddad, S.G., 2006. A new approach to enhance reproductive performance in sheep using royal jelly in comparison with equine chorionic gonadotropin. Animal Reproduction Science, 93, 24–33.

    Article  PubMed  CAS  Google Scholar 

  • Husein, M.Q., Kridli, R.T., 2002. Reproductive responses of Awassi ewes treated with either naturally occurring progesterone or synthesis progestagen. Asian-Australasian Journal of Animal Sciences, 15, 1257–1262.

    CAS  Google Scholar 

  • Ibarra, D., Laborde, D., Van-Lier, E., 2000. Repeatability and relationship with field mating performance of a serving capacity pen test in rams. Small Ruminant Research, 37, 156–169.

    Article  Google Scholar 

  • Jawasreh, K.I.Z., Khasawneh, A.Z., 2007. Genetic evaluation of milk production traits in awassi sheep in jordan. Egyptian Journal of Sheep and Goat Sciences, 2, 83–100.

    Google Scholar 

  • Kähn, W, 2004. Veterinary reproductive ultrasonography: horse, cattle, sheep, goat, pig, dog, cat. English translation and revision by Volkmann, D. and Kenney, R.M. Schlutersche Verlagsgesellschaft mbH and Co., Hannover, pp 187–212.

  • Kassem, R., Owen, J.B., Fadel, I. and Whitaker, C.J., 1989. Aspects of fertility and lamb survival of Awassi sheep under semi-arid conditions. Research Development Agriculture, 6, 161–168.

    Google Scholar 

  • Keisler, D.H., 2007. Sheep breeding strategies, In: Youngquest, R.S., Threlfall, W.R. (2nd Eds.) Current therapy in large animal theriogenology. Saunders Elsevier, St. Louis, pp 649–661.

  • Kelly R.W., Newnham J.P., Johnson T., Speijers E. J., 1987. An ultrasound technique to measure placental growth in ewes. Australian Journal of Agricultural Research, 38, 757–764.

    Article  Google Scholar 

  • Kinder, J.E., Bergfeld, E.G., Wehrman, M.E., Peters, K.E., Kojima, F.N., 1995. Endocrine basis for puberty in heifers and ewes. Journal of Reproduction and Fertility. Supplement, 49, 393–407.

    PubMed  CAS  Google Scholar 

  • Kridli, R.T., Said, S.I., 1999. Libido testing and the effect of exposing sexually naive Awassi rams to estrous ewes on sexual performance. Small Ruminant Research, 32, 149–152.

    Article  Google Scholar 

  • Kridli, R.T., Abdullah, Y.A., Shaker M.M., AI-Momani Q.A., 2006. Age at Puberty and Some Biological Parameters of Awassi and its First Crosses with Charollais and Romanov Rams. Italian Journal of Animal Science, 5, 193–202.

    Google Scholar 

  • Kridli, R.T., Abdullah, A.Y., Obeidat, B.S., Qudsieh, R.I., Titi, H.H., Awawdeh, M.S., 2007a. Seasonal variation in sexual performance of Awassi rams. Animal Reprodction, 4, 38–41.

    Google Scholar 

  • Kridli, R.T., Abdullah, A.Y., Shaker, M.M., Masadeh, M.K., 2007b. Sexual activity and puberty in pure Awassi and crosses and backcrosses with Charollais and Romanov sheep breeds. New Zealand Journal of Agricultural Research, 50, 429–436.

    Article  Google Scholar 

  • Kridli, R.T., Abdullah, Y.A., Shaker, M.M., Al-Smadi, N.M., 2007c. Reproductive performance and milk yield in Awassi ewes following crossbreeding. Small Ruminant Research, 71, 103–108.

    Article  Google Scholar 

  • Kridli, R.T., Abdullah, A.Y., Shaker, M.M., Mahmoud, K.Z., 2008. Sexual performance of rams sequentially exposed to short-tailed and fat-tailed ewes. Reproduction in Domestic Animals, 43, 497–501.

    Article  PubMed  CAS  Google Scholar 

  • 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 Health and Production, 41:1755–1764

    Article  PubMed  CAS  Google Scholar 

  • Lindsay, D.R., 1991. Reproduction in the sheep and goat, In: Cupps, P.T. (Ed.) Reproduction in domestic animals. Academic press Inc., San Diego, pp. 491–515.

    Google Scholar 

  • Motlomelo, K.C., Greyling, J.P.C., Schwalbach, L.M.J., 2002. Synchronization of oestrus in goats: the use of different progestagen treatments. Small Ruminant Research, 45, 45–49.

    Article  Google Scholar 

  • Ozyurtlu, N., Kucukaslan, I., Cetin, Y., 2010. Characterization of Oestrous InductionResponse, Oestrous Duration, Fecundity and Fertility in Awassi Ewes During the Non-breeding Season Utilizing both CIDR and Intravaginal Sponge Treatments. Reproduction in Domestic Animals, 45, 464–467.

    Google Scholar 

  • Pineda, M.H., 2003. Reproductive patterns of Sheep and Goats, In: Pineda, M.H., Dooly, M.P. (Eds.) McDonald’s Veterinary Endocrinology and Reproduction. Blackwell, Ames, pp. 435–446.

    Google Scholar 

  • Pollott, G.E., Gootwine, E., 2004. Reproductive Performance and Milk Production of Assaf Sheep in an Intensive Management System. Journal of Dairy Science, 87, 3690–3703.

    Article  PubMed  CAS  Google Scholar 

  • Price, E.O., Estep, D.Q., Wallach, S.J.R., Dally, M.R., 1991. Sexual performance of rams as determined by maturation and sexual experience. Journal of Animal Science, 69, 1047–1052.

    PubMed  CAS  Google Scholar 

  • Price, E.O., Borgwardt, R., Dally, M.R., 1993. Effect of ewe restraint on the libido and serving capacity of rams. Applied Animal Behaviour Science, 35, 339–345.

    Article  Google Scholar 

  • Ravindra, J.P., Rawlings, N.C., Evans, A.C.O., Adams, G.P., 1994. Ultrasonographic study of ovarian follicular dynamics in ewes during the oestrous cycle. Journal of Reproduction and Fertility, 101, 501–509.

    Article  PubMed  CAS  Google Scholar 

  • Rawlings, N.C., Bartlewski, P.M., 2007. Clinical reproductive physiology of the ewe, In: Youngquest, R.S., Threlfall, W.R. (2nd Eds.) Current therapy in large animal theriogenology. Saunders Elsevier, St. Louis, pp. 642–648.

  • Rosa, H.J.D., Bryant, M.J., 2002. The ‘ram effect’ as a way of modifying the reproductive activity in the ewe. Small Ruminant Research, 45, 1–16.

    Article  Google Scholar 

  • Roselli, C.E., Larkin, K., Resko, J.A., Stellflug, J.N., Stormshak, F., 2004. The volume of a sexually dimorphic nucleus in the ovine medial preoptic area/anterior hypothalamus varies with sexual partner preference. Endocrinology, 145, 478–483.

    Article  PubMed  CAS  Google Scholar 

  • Salhab, S.A., Zarkawi, M., Wardeh, M.F., Al-Masri, M.R., Kassem, R., 2003. Characterization and evaluation of semen in growing Awassi ram lambs. Tropical Animal Health and Production, 35, 455–463.

    Article  PubMed  CAS  Google Scholar 

  • Scaramuzzi, R.J., Adams, N.R., Baird, D.T., Campbell, B.K., Downing, J.A., Findlay, J.K., Henderson, K.M., Martin, G.B., McNatty, K.P., McNeilly, A.S., 1993. A model for follicle selection and the determination of ovulation rate in the ewe. Reproduction, Fertility, and Development, 5, 459–478.

    Article  PubMed  CAS  Google Scholar 

  • Schindler, H., Amir, D., 1972. Length of oestrus, duration of phenomena related to oestrus, and ovulation time in the local fat-tailed Awassi ewe. Journal of Agricultural Science, 78, 151–156.

    Article  Google Scholar 

  • Senger, P.L., 2003. Pathways to pregnancy and parturition, 2nd Edition. Current Conceptions Inc., Pullman

    Google Scholar 

  • Smith, J.F., 1985. Protein, energy and ovulation rate. In: Genetics of reproduction in sheep. Butterworths, London, pp 349–360.

  • Tabbaa, M.J., Kridli, R.T., Al-Ghalban, A., Barakeh, F.S., 2006. Age-related changes in scrotal circumference and some semen characteristics in Awassi rams. Animal Reproduction, 3, 431–438.

    Google Scholar 

  • Thomson, E.F., Bahhady, F.A., 1988. A note on live weight at mating on fertility of Awassi ewes in semi-arid North-West Syria. Animal Production, 47, 505–508.

    Article  Google Scholar 

  • Titi, H.H., Kridli, R.T., Alnimer, M.A., 2010. Estrus Synchronization in Sheep and Goats Using Combinations of GnRH, Progestagen and Prostaglandin F2α. Reproduction in Domestic Animals, 45, 594–599.

    PubMed  CAS  Google Scholar 

  • Turk, G., Gur, S., Sonmez, M., Bozkurt, T., Aksu, E.H., Aksoy, H., 2008. Effect of exogenous GnRH at the time of artificial insemination on reproductive performance of Awassi ewes synchronized with progestagen-PMSG-PGF2α combination. Reproduction in Domestic Animals, 43, 308–313.

    Article  PubMed  CAS  Google Scholar 

  • Ward, W.R., 1986. The breeding season and the estrous cycle, In: Morrow, D.A. (Ed.) Current therapy in theriogenology. Saunders, Philadelphia, Pennsylvania, pp. 846–847.

    Google Scholar 

  • Zarkawi, M., 1997. Monitoring the reproductive performance in Awassi Ewes using progesterone radioimmunoassay. Small Ruminant Research, 26, 291–294

    Article  Google Scholar 

  • Zarkawi, M., Al-Merestani, M.R. Wardeh, M.F., 1999. Induction of synchronized oestrous and early pregnancy diagnosis in Syrian Awassi ewes, outside the breeding season. Small Ruminant Research, 33, 99–102

    Article  Google Scholar 

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  1. Department of Veterinary Clinical Sciences, Faculty of Veterinary Medicine, Jordan University of Science and Technology, P.O. Box 3030, Irbid, 22110, Jordan

    Abdelsalam Q. Talafha & Mohammed M. Ababneh

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  1. Abdelsalam Q. Talafha
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  2. Mohammed M. Ababneh
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Correspondence to Abdelsalam Q. Talafha.

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Talafha, A.Q., Ababneh, M.M. Awassi sheep reproduction and milk production: review. Trop Anim Health Prod 43, 1319–1326 (2011). https://doi.org/10.1007/s11250-011-9858-5

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