Vol. 12, Special Issue 8 (2023)

Author(s):
Venkatesh Sirivati, Murugavel K, Kantharaj S and Hemalatha H

Abstract:
The research work was designed to assess the effectiveness of the inclusion of GnRH in intra-vaginal progesterone-releasing sponge-based estrus induction schedule on the reproductive efficiency of anestrus Tellicherry does. A total of 30 healthy does which were in postpartum anestrus even after 6 months of kidding were selected for this study. 15 does were placed in control group and other 15 does in treatment group. A progesterone sponge was inserted intravaginally into all the does for 12 days in both groups and all the does were inseminated at 48 h post-withdrawal of the sponge. When progesterone sponge was removed from the does in treatment group, GnRH at 4 mcg per goat was given intramuscularly. Ultrasonography was done for pregnancy diagnosis after 45 days of artificial insemination. The outcome of the present experiment indicate that the inclusion of GnRH injection at the time of removal of the intravaginal sponge improved the estrus induction and conception rates in anestrus does.