Use of pregnant mare serum gonadotropin and follicle stimulating hormone for superovulation in Thai swamp buffalo (Bubalus bubalis)
1997
Mongkol Techakumphu (Chulalongkorn Univ., Bangkok (Thailand). Faculty of Veterinary Science. Dept. of Obstetrics Gynaecology and Reproduction)
Effects of type and dose of gonadotropin hormone, pregnant mare serum gonadotropin (PMSG) and follicle stimulating hormone (FSH) on superovulation were investigated in 21 swamp buffalo cows. The method of embryo collection; non surgical (NS) and direct flushing after slaughter (DF) were also studied. Three experiments were designed as follows: Exp I: Nine buffaloes were superovulated with 2,500 iu PMSG Exp II: Eight buffaloes were tested for 2 different doses of FSH:, 280 and 400 mg (4 buffaloes in each group). In these two experiments, the responses were investigated directly after slaughter and the embryos were collected by DF technique. Exp III: Eight buffaloes treated with 280 mg of FSH were used for non surgical egg collection. The studies showed that there are a high variation in superovulation responses in every treated groups. In PMSG group, the responses and recovered embryos are low while in FSH group it seems better. No difference in the outcome of treatment between two doses of FSH and high embryo yield was observed by DF than NS technique.
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