Day protocol is used in beef cows. Do not express estrus and insemination program for uterine prolapse in improving their time span of synchronization protocols for dairy cattle. Similarly, estrus synchronization is an important tool for IRM. Extremely tight synchrony of large groups of females may overwhelm the bull power available to breed the herd. Regularly Recalibrate you thermometer. Alas, the extensive nature of most beef cattle operations and labor intensity associated with reproductive technologies, such as AI and synchronization tends to drive people away from utilizing this technology, yet the financial and genetic advantages have been extensively documented. Effects of low progesterone on the endometrial transcriptome in cattle. The influence of treatment days and pregnancy status was not significant for any of the biochemical constituents in any of the groups. Effect of human chorionic gonadotropin administered at specific times following breeding on milk progesterone and pregnancy in cows.