Synchronization and Artificial Insemination Strategies in Beef Cattle

Weaning weight and optimization of reproductive efficiency in Nellore females subjected to timed artificial insemination

“…These results are in agreement with those by Nogueira (2017), who found a significant difference in weaning weight of TAI calves that were greater than the average weaning weight of NS calves. The results of this study also corroborate with Lamb and Mercadante (2016), who observed a higher weaning weight (P<0.05) in the TAI animals than in the NS animals.…”

“…The results of the financial returns of this study are consistent with results found by Lamb and Mercadante (2016), who also obtained higher returns with TAI compared with NS because of the increasing number of products, improvements in reproductive efficiency of the herd, and even the added value to the product from a TAI in a herd of beef cattle.…”

Grand Challenge Animal Reproduction-Theriogenology: From the Bench to Application to Animal Production and Reproductive Medicine

“…These protocols proved to be of great values in production animals. Fixed-time artificial insemination is now a standard procedure for dairy and beef production as well as for large-scale sheep and goat operations (34–36). Estrous and ovulation synchronization protocols are also an integral part of embryo transfer programs.…”

Can cover sheath model influence semen retention in AI-gun trials and pregnancy rates of cows inseminated at a fixed-time?

“…production systems (Vries & Boer, 2010). Advances in reproductive biotechnologies and an enhanced understanding of the dynamics of the bovine estrous cycle have made the development of protocols to manipulate the estrous cycle and control ovulation using natural and/or artificially synthesized hormones (Lamb & Mercadante, 2016). Estrus synchronization and FTAI have increased the use of AI in beef cows and heifers (Bishop et al, 2017), making it possible to use large-scale AI, even in extensive breeding systems in tropical areas.…”