Authors : Muhammad Modu Bukar, Omar Mohammed Ariff, Rosnina Yusoff, Abd. Wahid Haron, Gurmeet Kaur Dhaliwal, Soh Wae Naing and Mohammed Azam Khan
Abstract: The aim of this study was to determine the effects of oestrus synchronization with PGF2α and CIDR on the ovarian antral follicle population and plasma IGF-1 concentration in goats. Daily transrectal ultrasonographic examination was conducted in 24 regularly cycling goats that were divided equally into 3 groups and oestrus synchronized with PGF2α (group A), CIDR (group B) and unsynchronized group (C). The mean number of follicles and IGF-1 concentration was significantly higher in the synchronized and subsequent natural oestrous cycles of group A and B when compared to group C. The total number of 3 mm diameter follicles were significantly higher in groups A and B compared with the control group C while the follicles that were 6 mm and larger were not significantly different (p>0.05). There was a significant low positive correlation (r = 0.14, N = 234) between IGF-1 concentration and the number of 3 mm follicles and between plasma IGF-I concentration and number of follicles (r = 0.13, N = 234). In conclusion, oestrus synchronization with PGF2α or CIDR was associated with increased plasma IGF-1 concentration and number of follicles compared with naturally cycling goats.
Muhammad Modu Bukar, Omar Mohammed Ariff, Rosnina Yusoff, Abd. Wahid Haron, Gurmeet Kaur Dhaliwal, Soh Wae Naing and Mohammed Azam Khan, 2011. The Effects of PGF2α and CIDR on Ovarian Antral Follicular Development and Plasma IGF-1 Concentration in Goats. Journal of Animal and Veterinary Advances, 10: 3014-3020.