Use of long-acting injectable progesterone in fixed-time artificial insemination protocols

Knowledge of the physiology of the estrous cycle in bovine females has been extremely important in monitoring and improving strategies in the use of drugs to control their estrous cycle and follicular development, providing better recruitment, selection, growth, and maturation until ovulation, with strategies to further optimize estrus and ovulation synchronization protocols. The objective of this work is to carry out a bibliographical analysis comparing the use of slow-release progesterone devices in relation to the use of long-acting injectable progesterone, taking into account their advantages, disadvantages and characteristics within a fixed-time artificial insemination program.