Oestrus synchronization and superovulation in the red Sokoto doe (RSD) in Sokoto, Nigeria
Keywords:Oestrus synchronization, Red Sokoto doe, Superovulation
AbstractA dose determination study for the prostaglandin analogue cloprostenol and the gonadotrophic hormones; equine chronic Gonadotrophin (ECG) and human chorionic Gonadotrophin (HCG) was conducted in the Red sokoto doe (RSD). 24 RSD were divided into 4 groups of 6 animals. Each group was synchronized with cloprostenol, a two dose, 11 days a part regimen was used; the first group is the untreated control receiving 0µg of the cloprostenol, the second, third and fourth groups were given 50µg, 75µg and 100µg of the drug respectively. No oestrus response was observed in the control. All the animals in group 2, 3 and 4 were seen to come on heat between the 48th and 96th hours after the second injection, all the Does in these groups manifested heat (100% response). In the superovulation experiments; 12 doses were divided into 3 groups of 4 animals each. Group I was given 1000i.u. of eCG and 25i.u. HCG. Group II was given 1000 i.u. eCG only, while the third group (III) was given 250 i.u. HCG only, all following cloprostenol treatment, the fourth group (IV) was the untreated control. Superovulatory response was estimated from corpora lutea count on the ovaries. A total of 59, 40, 15 ovulations were recorded for group I, II and III respectively. This study demonstrates that 50µg, 75µg and 100µg of cloprostenol are effective doses for the synchronization of oestrus in the RSD. It has also demonstrated that the combination of eCG and HCG produce quantitatively more ovulations than either eCG or HCG alone. These findings above were discussed in the paper.
Akusu, M.O., Egbunike, G.N., 1984. Fertility of the West African Dwarf Goat in its native environment following
PGF2o induced oestrus. Vet. Quarterl6, 173-176.
Baril, G., Freitas, V., Saumande, J., 1998. Progestagen treatment for the induction/synchronization of oestrus in
goats: update on recent research. Revue med. Vet 149,359-366.
Baril, G., Remy, J., valet, C., Beckers, JF., 1992. Effect of repeated use of progestagen-PMSG treatment for estrus
control in dairy goats out of breeding season.
Braden, A.W.H, LAmond, D.R., Radford, H.M., 1960. The control of the time of ovulatiob in sheep. Aust. J. Agric.
Res., 11, 389-401 (A.B.A, 28 No. 2039).
Freitas, V.J.F., Brail, G., saumande, j., 1996. Induction and synchronization of estrus in goats: the relative efficacy of
one versus two fluorogestone acetate impregnated vaginal sponges. Theriogenology. 1996, 46,1251-6.
Gonzales-bulnes, A., Moreno, S., Garcia, R.M., Souza, C.J.H., Lopez -Sebastian, A., MC Neilly, A.S., 2004.
THeriog.vol.61, issue5april, pp977-986.
Gordon, I., 1983. Controlled breeding in farm animals, Pergamon Press, Oxford New York, pp 155-285.
Greyling, J.P.S., Van der Westhursen, J.M., Van Nierkerk, C.H., 1979. The synchronization of oestrous in sheep. I
Dosage and time of prostaglandin Administration following progestagen pre-treatment &S Afri. J. Anim. Sci. 9,
Hancock, J.L., Hovell, G.H.R., 1961. Transfer of sheep ova, J. Reprod. Fert. 2,395-306.
Kirkpatrick, R., Akindele, Z.T., 1974. Reproduction in West African dwarf goats. J. Anim. Sci. 39, 163.
Molokwu, E.C.I., Igono, M.O., 1978. Reproductive performance and pattern in the brown goats of Nigerian
savanna zone.proc. IVth world conference on animal production Buenos aires, Argentina.
Moore, N.W., Shelton, J.N., 1964. Response of ewe to a horse anterior pituitary extract J. Reprod. Fert.. 7.79-87.p
Moore, N.W., 1980. Procedures and results obtainable in sheep and goats in animals. Current therapy in
theriogenology; diagnosis, prevention and treatment of reproductive diseases in domestic animals, W. B.
Saunders Co. Philadelphia. Oestrous synchronization and controlled breeding in goats using PGF2a.
Ogunbiyi, P.O., Molokwu, E.C.I., Soang Moorthly, T., 1980. Zuchthygiene (Beri.). 27,161-168.
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