The ovulation rate and follicle development were observed in 18 goats by laparotomy on the third day after injection of 500, 750 or 1,000 I.U. PMS. Fecundity was also observed in other 17 goats treated with 500, 750 or 1,000 I.U. PMS and mated natural...
The ovulation rate and follicle development were observed in 18 goats by laparotomy on the third day after injection of 500, 750 or 1,000 I.U. PMS. Fecundity was also observed in other 17 goats treated with 500, 750 or 1,000 I.U. PMS and mated naturally on the 17th day of the estrous cycle. The ovulation rate was 1.5 (1∼3), 2.5 (1∼4) and 3.2 (2∼5) in the goats receiving 500, 750 or 1,000 I.U. PMS, respectively, and it was found significantly (P$lt;0.05) mare in 1,000 I.U. PMS than in 500 I.U. PMS. However, there were no significant differences in the number of follicles with 5mm or larger diameter and hemorrhagic follicles between the groups. Fecundity was 2.0, 2.25 and 2.0 in the goats receiving 500, 750 and 1,000 I.U. PMS, respectively. The single, twin, triplet and quadruplet births were 23.5%, 52.7%, 17.7% and 5.9%, respectively. One still birth and 2 premature births were observed. The shorter gestation period of goats and the lighter birth weight of kids resulted from the higher fecundity.