Some factors affecting synchronization results in dairy cattle

Abstract

Estrus synchronisation in high yielding dairy cows is becoming an increasingly important aspect of reproductive management in the dairy industry, showing results of improved fertility and reproductive efficiency. Therefore, we wanted to study these effects and changes in reproduction of the Double-Ovsynch protocol in a large number of animals over three years. Our research took place at two large-scale dairy farms in Hungary with a total of more than 2,542 Holstein-Friesian dairy cows included in the study, recording the data of both reproduction and milk production parameters, before analysing the results.