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Publication Date: 2009-12-18
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Uribe Velásquez, L. F. ., Restrepo Cadavid, R. ., & Henry Osorio, J. . (2009). Follicular and endocrine responses in sheep after estrous synchronization using progesterone, prostaglandins (PGF2a) and gonadotrophins. Revista Veterinaria Y Zootecnia (On Line), 3(2), 14–27. Retrieved from https://revistasojs.ucaldas.edu.co/index.php/vetzootec/article/view/5627
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Abstract
ABSTRACT: The reproduction seasonality in sheep and goats is the major limitation in improving productivity. Controlling the seasonality in sheep is one of the most significant features of intensive production systems along with being a valuable aid to sheep management. Various treatments have been proposed to control seasonality. Improving reproductive efficiency through estrus induction and synchronization can be accomplished through hormonal treatments including gonadotrophins, progestagens, and luteolythic agents as prostaglandin F2α. Estrous synchronization is applied effectively in assisted reproductive techniques such as artificial insemination and embryo transfer in small ruminants. Estrous synchronization in small ruminants is achieved either by reducing the length of the luteal phase of the estrous cycle with prostaglandin F2α or by artificially extending it with exogenous progesterone or potent progestagens. Since the prostaglandin method is limited to the breeding season (active corpus luteum), different protocols for estrous synchronization using either progesterone or progestagens have been introduced. Intravaginal sponges impregnated with progestagens have been extensively used in sheep and goats in order to control estrous and ovulation during the breeding and non-breeding season. The controlled internal drug release (CIDR) devices have been also found to be effective in controlling estrus and ovulation in sheep. In small ruminants, CIDRs in conjunction with equine gonadotrophin (eCG) have been regularly used in fixed-time AI programs. The aim of the present review was to evaluate the efficiency of the most commonly used methods of estrous synchronization in ovine females, because of varying ovarian response to synchronization procedures, fertility and hormonal concentrations.
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References
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Bevers, M.M., Dieleman, S.J., Van Tol, H.T.M., Blankenstein, D.M., Van Den Broek, J. Changes in pulsatile secretion patterns of LH, FSH, progesterone, androstenedione and oestradiol in cows after superovulation with PMSG Journal of Reproduction Fertility, v.87, p.745-54, 1989.
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Cardwell, B.E., Fitch, G.Q., Geisert, R.D. Ultrasonic evaluation for the time of ovulation in ewes treated with norgestomet and norgestomet followed by pregnant mare’s serum gonadotropin. Journal of Animal Science, v.76, p.2235-38, 1998.
Castonguay, F., Dufour, J.J., Minvielle, F., Estrada, R. Follicular dynamics and dominance in Boorola x Finnish Landrace and Boorola x Suffolk ewes heterozygous for the F gene. Journal Reproduction Fertility, v. 89, p. 193-203, 1990.
Chagas, L.M., Souza, C.J.H., Moura, A., Moraes, J.C.F. Viabilidade do emprego de uma minidose de prostaglandina na sincronização de cios em ovinos. Ciência Rural, v.24, p.355-8, 1994.
Chamley, W.A., Buckmaster, J.M., Cain, M.D., Cerini, J., Cerini, M.E., Cumming, I.A., Goding, J.R. The effect of prostaglandin F2α on progesterone, oestradiol and luteinizing hormone secretion in sheep with ovarian transplants. Journal of Endocrinology, v.55, p.253-63, 1972.
Donrov, T.S., Batsaihan, D., Ley, W.B. Gonadotrophin extraction from pregnant mare’s serum and effect of PMSG preparation on the fertility of Mongolian native ewes. Small Ruminant Research, v.28, p.61- 66, 1998.
Dott, H.M., Hay, M.F., Cran, D.G., Moor, R.M. Effect of exogenous gonadotrophin (PMSG) on the antral follicle population in the sheep. Journal of Reproduction Fertility, v.56, p.683-9, 1979.
Driancourt, M.A., Gibson, W.R., Cahill, L.P. Follicular dynamics throught the oestrus cycle in sheep. A review. Reproduction Nutrition Development, v.25, p.1-15, 1985.
Driancourt, M.A., Gougeon, A., Royère, D., Thibault, C. Ovarian function. In: Thibault, C., Levasseur, M.C. Reproduction in mammals and man. R.H.F. Hunter, 1993. Chap.15, p.283-305.
Driancourt, M.A., Thatcher, W.W., Terqui, M. Dynamics of ovarian follicular develoment in cattle during the estrous cycle, early pregnancy and in response to PMSG. Domestic Animal Endocrinology, v.8, p.209-221, 1991.
Duchens, M., Gustafsson, H., Rodríguez-Martínez, H., Forsberg, M., Edqvist, L.E. Effect of induced suprabasal progesterone concentrations on follicular dynamics in heifers. Reproduction in Domestic Animals, v.29, p.315-25, 1994.
Echternkamp, S.E., Bolt, D.J., Hawk, H.W. Ovarian and pituitary hormones in blood of progestogentreated ewes. Journal of Animal Science, v.42, p.893-901, 1976.
Evans, G., Robinson, T.J. The control of fertility in sheep: endocrine and ovarian responses to progestagen-PMSG treatment in the breeding season and in anoestrus. Journal of Agricultural Science, v.94, p.69-88, 1980.
Gardón, J.C., Simonetti, L. Residual levels on medroxyprogesterone acetate-impregnated sponges after estrus synchronization treatment and their relationship with fertility in cyclic goats. Brazilian Journal of Veterinary Research and Animal Science, v.34, p.163-6, 1997.
Ginther, O.J. Influence of progesterone and number of corpora lutea on ovaries in sheep. American Journal of Veterinary Research, v.32, p.1987- 92, 1971.
Godfrey, R.W., Gray, L., Collins, J.R. Estrus synchronization of sheep in the tropics using either controlled internal drug release (CIDR) dispensers or prostaglandin F2α (PGF). Journal of Animal Science, v.73, Suppl.1, p.232, 1995.
González de Bulnes, A., Moreno, J.S., Garcia, L.M., Gomez, B.A., Lopez, S.A. Observación del ovario en la oveja y eficacia en la detección de folículos y cuerpos lúteos mediante ecografía transrectal. Investigación Agraria. Producción y Sanidad Animal, v.9, p.319-329, 1994.
Greyling, J.P.C., Brink, W.C.J. Synchronization of oestrus in sheep: The use of controlled internal drug release (CIDR) dispensers. South Africa Tydskr Veek, v. 17, p.128-132, 1987.
Greyling, J.P.C., Van Der Westhuysen, J.M. The synchronization of oestrus in sheep. 2. Dose effect of prostaglandin in the double injection regime. South African Journal of Animal Science, v.9, p.193-5, 1979.
Hackett, A.J., Robertson, H.A. Effect of dose and time of injection of prostaglandin F 2α in cycling ewes. Theriogenology, v.13, p.347-51, 1980.
Hamra, A.H., Massri, Y.G., Marcek, J.M., Wheaton, J.E. Plasma progesterone levels in ewes treated with progesterone-controlled drug-release dispenser, implants and esponges. Animal Reproduction Science, v.11, p.187-194, 1986.
Herrera, H.L., Feldman, S.D., Zarco, Q.L., Valencia, M.J., Ortiz, H.A., Angeles, C.S. Evaluación del efecto luteolítico de la prostaglandina F2 alfa en diferentes días del ciclo estral de la borrega. Veterinaria México, v.21, p.143-7, 1990.
Hunnicutt, L.K., Stobart, R.H., Townsend, R.S., Aimone-Lupher, C.E. Eazi-breed CIDR devices versus prostaglandin F2α for synchronization of estrus in mature range ewes. Journal of Animal Science, v.50, Suppl.1, p.241, 1995.
Johnson, S.K., Dailey, R.A., Inskeep, E.K., Lewis, P.E. Effect of peripheral concentrations of progesterone on follicular growth and fertility in ewes. Domestic Animal Endocrinology, v.13, p.69-79, 1996.
Karsch, F.J., Foster, D.L., Legan, S.J., Ryan, K.D., Peter, G.K. Control of the preovulatory endocrine events in the ewe: Interrelationship of estradiol, progesterone, and luteinizing hormone. Endocrinology, v.105, p.421-6, 1979.
Kouskoura, T.H., Kouimtzis, S., Alexaki, E., Smokovitis, A. Comparative studies of ovarian steroids in blood, and specific proteolytic enzymes in the cervical mucus, in four sheep breeds after oestrus synchronization (Progesterone and PMSG). 1. Breed variation of oestradiol-17β and progesterone in blood during natural oestrus,
synchronization oestrus, and the first oestrus after synchronized oestrus. Reproduction in Domestic Animals, v.30, p.8-13, 1995.
Kruip, A.M., Brand, A. Follicular growth during the normal cycle and after treatment with progestagens in the ewe. Annales Biology of Animal Biochemistry Biophys, v.15, p.191- 204, 1975.
Langford, G.A. Influence of PMSG and time of artificial insemination on fertility of progestogentreated sheep in confinement Journal of Animal Science, v.54, p.1205-1211, 1982.
Leyva, V., Buckrell, B.C., Walton, J.S. Regulation of follicular and ovulation in ewes by exogenous progestagen. Theriogenology, v.50, p.395-416, 1998.
López-Sebastian, A. Descarga preovulatoria de LH y momento de la ovulación en ovejas con celo inducido mediante progestágenos y PMSG. Investigación Agraria. Producción y Sanidad Animal, v.6, p.123-130, 1991.
Martin, G.B. Factors affecting the secretion of luteinizing hormone in the ewe. Biology Reviews, v.59, p.1-87, 1984.
McNatty, K.P., Gibb, M., Dobson, C., Ball, K., Coster, J., Heath, D., Thurley, D.C. Preovulatory follicular development in sheep treated with PMSG and/or prostaglandin. Journal of Reproduction Fertility, v.65, p.111-123, 1982.
McNatty, K.P., Henderson, K.M., Lun, S., Heath, D.A., Ball, K., Hudson, N.L., Fannin, J., Gibb, M., Kieboom, L.E., Smith, P. Ovarian activity in Booroola x Romney ewes which have a major gene influencing their ovulation rate Journal of Reproduction Fertility, v.73, p.109-20, 1985.
McNeilly, A.S., Picton, H.M., Campbell, B.K., Baird, D.T. Gonadotrofic control of follicle growth in the ewe. Journal of Reproduction Fertility, Supplement 43, p.177-186, 1991.
Mihm, M., Diskin, M.G., Roche, J.F. Regulation of follicle wave growth in cattle. Reproduction in Domestic Animals, v.31, p.531-538, 1996.
Moraes, J.C.F., Souza, C.J.H, Collares, R.S. Situação atual e perspectivas da inseminação artificial em ovinos. Revista Brasileira de Reprodução Animal, v.22, p.87-91, 1998.
Naqvi, S.M.K., Gulyani, R., Pmittal, J. Estrus synchronization response in Kheri ewes treated with prostaglandin F2 α. Indian Journal of Animal Sciences, v.68, p 564-5, 1998.
Noel, B., Bister, J.L., Pierquin, B., Paquay, R. Effects of FGA and PMSG on follicular growth and LH secretion in Suffolk ewes. Theriogenology, v.41, p.719-727, 1994.
Ottobre, J.S., Lewis, G.S., Thayne, W.V., Inskeep, E.K. Mechanism by wich progesterone shortens the estrous cycle of the ewe. Biology of Reproduction, v.23, p.1046-53, 1980.
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