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Synchronization of the oestrous cycle in goats

Effektiv priemy i metody selekts plem raboty v ovtsevod i kozovod: 87-90

Synchronization of the oestrous cycle in goats

After 1 injection of 165 micro g Oestrophan (PGF2 alpha ), 74% of goats came into oestrus within 8 days, compared with 34% after 3 injections each of 30 mg progesterone. Duration of the oestrous cycle after treatment averaged 16.8 and 22.7 days resp., and duration of oestrus 33.0 and 28.5 h.

Accession: 001962280

Related references

Espeschit, C.J.B.; Fonseca, F.A.; Rodrigues, M.J.; Torres, R. de A.; Torres, C.A.A., 1988: Effect of progestogen (MAP) in association with serum gonadotropin (PMSG) and cloprostenol on oestrus synchronization in goats at different stages of the oestrous cycle. 91 days post partum, at the onset of oestrus, 14 goats, aged 3-7 yr, were given a vaginal sponge impregnated with 50 mg MAP for 10 days, and were injected with 0.05 mg cloprostenol and 200 IU PMSG 8 days after sponge insertion, and 15 goats receiv...

Thangavelu, B.; Mukherjee, T.K., 1984: Oestrous cycle lengths and oestrous behaviour studies in Katjang goats. 200 oestrous cycles of 40 Katjang goats were observed in 1980-81, and 20 cycling does were observed for 1 month. The av. oestrous cycle length was 19.7+or-0.04 days. The correlation of oestrous cycle length with age and body weight was -0.01 and 0...

Setiadi, B.; Diwyanto, K.; Sitorus, P., 1988: Oestrous cycle lengths and oestrous behaviour studies in Indonesian goats. For an unspecified number of Etawah [Jamnapari] goats, oestrous cycle duration averaged 20.5+or-3.6 days (range = 7-28); 92.3% of animals had a normal oestrous cycle (15-28 days) and 7.7% had short cycles (<15 days). Ovulation rate averaged 1.5...

Vieira, V.E.; Nunes, J.F.; Vieira, R.J.; Neiva, C.B.; Vieira Filho, M.A., 2003: Synchronization of oestrous in goats treated with GnRH. The biotechnology of the reproduction need to arrive to the producing of such a form that this can increase the genetic improvement of the flock. The oestrus synchronization favors the use of the artificial insemination and several protocols have...

Pandey, J.N.; Ishwar, A.K.; Singh, R.A., 1985: Oestrous synchronization in goats using prostaglandin (Lutalyse). 30 Black Bengal goats were kept as untreated controls. 31 experimental goats were classified into 17 non-cycling, 7 short cycling (<17 days) and 6 normally cycling (17-25 days) animals and 1 nymphomaniac. When the non-cycling goats were given 5...

Freitas, V.J.; Baril, G.; Martin, G.B.; Saumande, J., 1997: Physiological limits to further improvement in the efficiency of oestrous synchronization in goats. The variability between animals in the timing of oestrus after administration of a synchronization treatment seems to explain the low rate of fertility in goats inseminated at a predetermined time after progesterone withdrawal. Two experiments wer...

Fernandez-Moro, D.; Veiga-Lopez, A.; Ariznavarreta, C.; Tresguerres, J.A.F.; Encinas, T.; Gonzalez-Bulnes, A., 2008: Preovulatory follicle development in goats following oestrous synchronization with progestagens or prostaglandins. The study reports on differences in the dynamics of growth and functionality of preovulatory follicles in response to oestrous synchronization, either by the administration of two doses of prostaglandin or by an intravaginal progestagen sponge, in...

Vosniakou, A.; Laliotis, V.; Batzios, C.; Karatzas, G., 1996: Reproductive efficiency of native Greek and Saanen breed goats after oestrous synchronization. Zervas, N P [Editor], Hatziminaoglou, J [Editor] EAAP Publication; The optimal exploitation of marginal Mediterranean areas by extensive ruminant production systems : 173-176

Denny, J.E.F.M.; Hunter, G.L., 1958: Synchronization of the oestrous cycle in sheep. For the purpose of an experiment on the transfer of fertilized ova, attempts were made to synchronize the estrous cycles of 31 Merino and 11 Dorper ewes, so that the majority of the ewes would come in heat on May 31,1957. From 9 to 28 May, each ew...

Robinson, Tj, 1968: The synchronization of the oestrous cycle and fertility