Ressincronização de estro de vacas nelore em programas de IATF

Abstract

Livestock farming is one of the main production systems in Brazilian agribusiness, and there is ongoing concern about the advancement of this sector in the country. In this context, reproductive biotechniques, such as fixed-time artificial insemination (TAI) and resynchronization, play a fundamental role in ensuring the maximum productive efficiency of the system. Therefore, the objective of this work was to describe the main activities carried out in the Mandatory Supervised Internship, highlighting and discussing the most relevant innovations experienced during the internship period. The Mandatory Supervised Internship was carried out at the company Cria Fértil, located in the city of Goiânia-GO. The internship activities began on 02/29/2024 and ended on 05/29/2024, with a total workload of 420 hours, 8 hours a day from Monday to Friday. The activities were carried out at the headquarters of the company Cria Fértil and on several assisted farms during the breeding season. Initially, the objective of choosing the internship was to experience reproduction intensively, in addition to acquiring knowledge, experience and developing skills in the area of animal reproduction, with a focus on beef cattle. Among the biotechnologies discussed, IATF played a prominent role in increasing herd productivity, concentrating the birth period within one property, making it possible to synchronize the moment of ovulation with the use of reproductive hormones. With resynchronization protocols, it is possible to carry out a new insemination as quickly as possible, which can be conventional, early or super early.