Effect of two different doses of FSH-P (Folltropin-V) on superovulation in Berari (Nagpuri) buffaloes (Bubalus bubalis).

In the present study, superovulatory response was determined in eight healthy matured Berari (Nagpuri) buffaloes which were divided in two groups (A and B). The superovulatory treatment was started in donor buffaloes from the 10th day after induced estrus. Animals in Group A and Group B were administered, respectively, with 500 mg and 560 mg FSH-P in descending doses (100, 75, 50, 25 mg and 100, 80, 60, 40 mg twice daily) for four consecutive days. PGF(2 alpha) (Lutalyse) 25 mg was injected to all the animals in both groups after 72 h of initiation of superovulatory treatment. Oestrus was recorded in all the buffaloes under study. Onset and length of superovulatoryoestrus in Groups A and B were recorded to be 20.00 +/- 0.00 h, 36.50 +/- 5.50 h and 19.00 +/- 0.00 h, 38.75 +/- 3.32 h, respectively. Per rectal assessment of superovulatory response on the 6th day after the last FSH-P injection revealed the average number of corpora lutea and unovulatory follicles per donor buffalo in Group A and Group B to the tune of 3.00 +/- 0.71, 1.00 +/- 0.00 and 2.75 +/- 0.48, 1.50 +/- 0.29, respectively. No significant difference was recorded in terms of superovulatory response in either group at 5 percent level (P < 3.185).