MINERAL MIXTURE SUPPLEMENTATION FOLLOWED BY TIMED AI PROTOCOL FOR IMPROVING FERTILITY STATUS OF POSTPARTUM DAIRY CATTLE

Abstract

The postpartum dairy cattle (n=8) were orally supplemented with 30-50 gm mineral mixture per day for 15 
days followed by administration of ovsynch, a timed artificial  insemination (AI) protocol. between days 50 to 65  postpartum. The control group cattle (n=8) were also supplemented with mineral mixture as in other group and  were observed for overt estrus for 30 days starting between days 35 to 50 postpartum followed by AI at overt 
estrus. The cattle subjected to mineral mixture plus ovsynch protocol had ovulatory response, and first service,  second service and overall conception rate as 100, 37.5, 50 and 87.5% in comparison to their counterparts  exhibiting respective response as 62.5, 25, 37.5 and 62.5%. Thus, the mineral mixture supplementation followed  by ovsynch treatment can be used to improve fertility status in postpartum dairy cattle.