Estrus Synchronization Techniques of Buffaloes and Cattle in Guangxi Rural Areas

[Objective] To compare the estrus synchronization of female buffaloes and cattle in the rural areas.[Method] The female buffaloes and cattle were treated with cloprostenol and pregnant mare serum.[Result] The rate of estrus and conception of buffalo heifers with the treatment of estrus synchronization were 55.9% and 38.55%,respectively,which were lower than multiparous buffaloes(84.5% and 45.6%)(P0.05).The estrus and conception rates between heifers and multiparous cattle were not significantly different(P0.05).The rate of estrus and conception of buffaloes more than 120 d after calving was 84.7% and 44.8%,respectively,which were higher than that of buffaloes less than 60 d after calving(78.6% and 40.7%)and that of buffaloes at 60-90 d after calving(76.1% and 38.6%).there were significant difference(P0.05).The rate of synchronization estrus and conception of cattle during 60 d after calving were lower than that of cattle between 60 to 90 d and more than 120 d after calving,the difference were significant.[Conclusion] The treatment effects of cloprostenol and pregnant mare serum on the estrus synchronization of buffaloes and cattle are well.This method is worth promoting in Guangxi area.