The objective of this study was to compare the conception rate for fixed-timed artificial insemination (FTAI) and observed heat artificial insemination (HAI) prior to the scheduled FTAI in Doublesynch and Estra doublesynch synchronization protocols as well as HAI in mineral supplemented cyclic non breeding cattles (RB). | Efficacy of doublesynch and estra doublesynch on conception rate of cyclic non breeding cattle