TY - JOUR T1 - The Effects of PGF and CIDR on Ovarian Antral Follicular Development and Plasma IGF-1 Concentration in Goats AU - Modu Bukar, Muhammad AU - Mohammed Ariff, Omar AU - Yusoff, Rosnina AU - Wahid Haron, Abd. AU - Kaur Dhaliwal, Gurmeet AU - Wae Naing, Soh AU - Azam Khan, Mohammed JO - Journal of Animal and Veterinary Advances VL - 10 IS - 22 SP - 3014 EP - 3020 PY - 2011 DA - 2001/08/19 SN - 1680-5593 DO - javaa.2011.3014.3020 UR - https://makhillpublications.co/view-article.php?doi=javaa.2011.3014.3020 KW - Oestrus synchronization KW -ultrasonography KW -CIDR KW -PGF2± KW -follicular development KW -IGF-1 KW -goats AB - The aim of this study was to determine the effects of oestrus synchronization with PGF 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 PGF (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 PGF or CIDR was associated with increased plasma IGF-1 concentration and number of follicles compared with naturally cycling goats. ER -