Various FSH Administration on Superovulatory Response and Embryo Yield in Anatolian Black Heifers

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The aim of the present study was to investigate effectiveness of superovulatory response and embryo yield in Anatolian Black heifers, induced with the administration of two different follicle stimulating hormone. Heifers received a progesterone releasing device (Cue-mate containing 1.56 g progesterone). The heifers were randomly assigned to four groups. Group Folltropin (F) were administered with Folltropin (400 mg) as a control, while those included in Groups Ovagen (O) were administered with Ovagen at doses of 8.8 mg (O1), 11.44 mg (O2) and 17.6 mg (O3) respectively. On the 9th day of the application, the Cue-mate was removed and the heifers received 500 μg prostaglandinF2α in all goups. The heifers were artificially inseminated (AI) using semen obtained from Anatolian Black bulls; in the evening of day 11 and in the morning of day 12 with 12 hours intervals. Embryos were collected by uterine flushing 7 days after AI. The mean number of CL determined as 6.33±0.718 in F, was found to be higher than the numbers obtained with the administration of the three different doses of O (3.82±0.502, 3.50±0.513, 3.58±0.448 respectively; p 0.001). The transferable embryo yield did not differ significantly among the treatment groups (p 0.05). In conclusion, findings show that although the administration of F was ascertained increase the number of CL and the total number of ova/embryos recovered, these increased numbers had no reflection on the number of transferable embryos in Anatolian Black heifers.

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Anatolian Black heifer , Folltropin , FSH , Ovagen , Superovulation

Kocatepe Veterinary Journal

326

Kocatepe Veterinary Journal