Vol. 12, Issue 4 (2023)

Author(s):
Anil Kumar Reddy Kanduri, KCS Reddy, Venkata Ramana K and Uday Kannegundla

Abstract:
A study was conducted to document various reproductive parameters in Mahabubnagar local goats using different estrus synchronization protocols. A total of 100 healthy and non-pregnant does aged between 2 - 5 years located at Livestock Research Station, Mahabubnagar were selected and randomly allotted into 5 groups each with 20 does. First group does were kept as control without giving any treatment. Group II does were treated with GnRH on day 0, PGF₂α on day 7 and GnRH on day 9. Group III does were treated with PGF₂α on day 0, 7 and GnRH on day 9. Group IV does were inserted with vaginal sponges for 9 days, administered PGF₂α on day 8, on 9^th day sponges were withdrawn and GnRH was administered. Group V does were inserted with vaginal sponges for 9 days and PMSG was administered after removal of sponges. The reproductive performance of does was estimated in terms of pregnancy rate, kidding rate, litter size and twinning rate. The performance traits were higher in does treated with different estrous synchronization protocols than the control group. The overall mean pregnancy rate, kidding rate, litter size and twinning rate observed in the present study were 71%, 91.5%, 1.33 and 33.85%. Significantly higher pregnancy rate, litter size and twinning rates were observed in Group V does were treated with Sponge and PMSG than the control and other three protocols.