ESTRATÉGIAS PARA VIABILIZAR A ATIVIDADE REPRODUTIVA DE NOVILHAS NELORE AOS 13-15 MESES DE IDADE: REVISÃO DE LITERATURA

Abstract

Among the zebu animals, the Nelore has been playing a fundamental role in the Brazilian beef cattle trade, representing 90% of the Brazilian herd. Its impact on the domestic and foreign markets is favorable, both in terms of meat production and genetics. However, when referring to animals of the zebu breed, we are talking about animals that tend to be sexually later when compared to taurine animals, even though they are managed under similar conditions. Therefore, strategies to facilitate the reproductive activity of Nelore heifers aged 13 to 15 months are sought to guarantee the sexual precocity of these animals. Including younger heifers in reproduction, providing the breeder with more profitability. This review aims to identify several strategies that can be used to ensure that Nelore heifers are ready to enter reproduction at 13 to 15 months of age. These strategies range from calf care, nutrition, health, animal genetics and hormonal protocol, until the moment these heifers are introduced into reproduction. Through the literature review, it is expected to obtain information relevant to the identification of management strategies that enable the reproductive activity of Nelore heifers, in addition to adequate nutritional practices, animal health care, analysis of hormonal protocols, selection of animals with high genetics and recommendations for rural producers and professionals in the área.