Abstract

This study aimed to evaluate the efficiency of oestrus synchronization and mass insemination under the action research and development intervention. For the evaluation, a total of 126 and 883 dairy cattle were taken under action research and development intervention, respectively. The result of estrus response (90%) in action research was somewhat higher than the result obtained from development intervention (87.2%). The number of AI services per conception in action research was (1.75) lower than the development interventions (2.36). The result of conception was higher (58.4%) under action research than the development intervention (42.2%). The result further revealed that both in action research and development intervention conception significantly (P<0.05) affected by genotypes. Conception was higher in the 2nd parity both in action research and development intervention. The BCS was higher (P<0.05) among the cattle with a higher conception rate. Conception also significantly varied across cows’ age, with higher values observed among those aged between 5 to 7 years. Conception rate was a significant (P<0.05) difference among the time of insemination, with higher results observed between 10 to 15 hours after the onset of estrus. Results from action research and development intervention indicated a possibility to improve the conception rate by 16.2%. Therefore, appropriate animal selection, semen quality, and the time of insemination need to be considered for a successful estrous synchronization and AI program.