Análisis de los avances biotecnológicos en protocolos de sincronización de celo para inseminación artificial en ganado Bos indicus.

Abstract

The aim of this research was to analyse biotechnological advances in protocols for Estrus Synchronization of artificial insemination in cattle, taking into account and comparing different breeds and various treatments. Through qualitative and descriptive research, many studies have been carried out and referential analysis has determined the aspects to be considered in the application of these treatments in order to induce the estrus cycle efficiently. Moreover, the comparison of the conditions and parameters under which the investigation was carried out, considered different methods to induce the estrus cycle, such as sample size, environmental conditions, breeds, breast-feeding times, estrus cycles, climatic floors, amongst other. The results are presented in relation to efficiency for each applied method, as well as the technical aspects involved, drugs and devices used for each treatment, evaluating each investigation with its size and method of application. It was found that many advancements in methods for Estrus Synchronization have been developed aiming cows’ insemination, however, the evidence suggest that best results were obtained by the application of Ovsynch methods, with presence of estradiol and chorionic gonadotropin. Effective estrus synchronization allows producers to plan the reproductive cycle in their cattle through the uniform estrus cycle, with the objective of generating better profits and controlling potential problems in the intervention in cattle, delaying its estrus cycle´s. An analysis of best methods to be applied is recommended, considering the animal´s physical conditions such as if it has a calf, the type of breed and the environmental conditions that facilitate the start of the estrus cycle.