Effect of Different Protocols of Fixed-Time Artificial Insemination on Mucus, Ovarian Size, and Pregnancy of Mixed-Breed Cows in the Humid Tropics of Peru.

The objective of the research was to evaluate three synchronization protocols for fixed-time artificial insemination (FTAI) in with crossbred cows. Forty-five cows of 5 ± 1.6 years were selected.