@article{MAKHILLJAVA201110223051, title = {The Effects of PGF and CIDR on Ovarian Antral Follicular Development and Plasma IGF-1 Concentration in Goats}, journal = {Journal of Animal and Veterinary Advances}, volume = {10}, number = {22}, pages = {3014-3020}, year = {2011}, issn = {1680-5593}, doi = {javaa.2011.3014.3020}, url = {https://makhillpublications.co/view-article.php?issn=1680-5593&doi=javaa.2011.3014.3020}, author = {Muhammad,Omar,Rosnina,Abd.,Gurmeet,Soh and}, keywords = {Oestrus synchronization,ultrasonography,CIDR,PGF2±,follicular development,IGF-1,goats}, abstract = {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.} }