The Effects of PGF2汐 and CIDR on Ovarian Antral Follicular Development and Plasma IGF-1 Concentration in Goats

作者：Muhammad Modu Bukar; Omar Mohammed Ariff; Rosnina Yusoff; Abd Wahid Haron; Gurmeet Kaur Dhaliwal; Soh Wae Naing; Mohammed Azam Khan

来源：Journal of Animal and Veterinary Advances, 2012.

DOI：10.3923/javaa.2011.3014.3020

The aim of this study was to determine the effects of oestrus synchronization with PGF2汐 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 PGF2汐 (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%26gt;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 PGF2汐 or CIDR was associated with increased plasma IGF-1 concentration and number of follicles compared with naturally cycling goats.