Vol. 10, Special Issue 12 (2021)

Author(s):
M Praveen Kumar, K Veera Bramhaiah and M Mutha Rao

Abstract:
The present study was undertaken by utilizing 14 postpartum anestrus buffaloes to study the ovarian response when synchronized with Ovsynch (Group I) and Ovsynch + CIDR (Group II) by transrectal ultrasound scanning. Synchronization of these postpartum anestrus buffaloes with Ovsynch and Ovsynch + CIDR protocols, resulted into an insignificant (P>0.05) increase in the diameter of the follicle from the day of initiation of protocols (7.93±0.70 mm) to the day of prostaglandin administration (8.50±0.27 mm) and to the day of insemination (9.50±0.24 mm) in Group I. Similarly, in Group II also the diameter was increased from 8.21±0.63 to 8.57±0.37 and reached to 11.64±0.28mm, respectively. The difference in the maximum diameter of follicle between the groups was significant (P<0.05) and it was significantly (P<0.05) higher on the day of insemination and insignificantly (P>0.05) higher at the time of initiation of treatment and on the day of PG administration during synchronization with Ovsynch + CIDR compared to Ovsynch protocol. The mean diameter of corpus luteum was 17.39 ± 0.58 mm on the day of prostaglandins administration in Group I, while 18.39 ± 0.70 mm in Group II buffaloes and difference was significant (P<0.05) between groups.