Vol. 12, Special Issue 7 (2023)

Author(s):
M Selvaraju, P Kumaresan, R Ezakial Napolean and D Gopikrishnan

Abstract:
Synchronization of estrus is a reliable technique which results in higher pregnancy in buffaloes when combined with timed artificial insemination. A total number of 18 healthy pluriparous buffaloes at 60 days postpartum were selected for the study and equally divided into three groups’ viz., Group I, Group II, and Group III. Group I buffaloes were inserted with PIVD intravaginally for 9 days and was removed on 9th day and inseminated artificially 48 hours after PIVD removal. Group II buffaloes were inserted with PIVD for 9 days and 25mg of PGF2α was administered one day prior to PIVD removal. Artificial Insemination was done 48 hours after the PIVD removal. Group III buffaloes were kept as control and inseminated artificially during natural estrus. The conception rate after first and second service and overall conception rates observed in this study were 33.33, 16.67 and 50.00 in group I; 16.67, 33.33 and 50.00 in group II and 16.67, 16.66 and 33.33 in group III, respectively. It could be concluded that the PIVD can be effectively used for synchronization of estrus in postpartum buffaloes.