Utilização de silagem de capim e proteico energético como dieta estratégica para novilhas (Bos indicus) super precoce

Reproductive efficiency in females plays a fundamental role in the economic sustainability of beef cattle herds, especially in characteristics related to sexual precocity in heifers. However, for success in this category, it is necessary to formulate a strategic diet. The present study aimed to evaluate the use of a diet for weight gain in Nelore PO females in the Municipality of Vilhena-RO. To this end, 232 Nelore animals were monitored after weaning until the breeding season of the same year, the animals had an average initial weight of 230kg. They were weaned in March and remained on pasture made up predominantly of Brachiaria, receiving as a nutritional strategy for weight gain Miyagi grass silage plus energy protein with consumption of 0.6% of live weight. In September 2023, the heifers underwent puberty induction protocols and were artificially inseminated in October, having an average age of 12 months, with an average weight of 325 kg, having an average daily gain of 527g, a gain provided by the supplementation they received with silage grass and protein After the first artificial insemination, 55% of the animals had a positive pregnancy with diagnosis at 33 days, totaling 128 pregnant animals out of the 232 submitted to reproduction. It is evident, therefore, that strategic supplementation of animals as a weight gain tool becomes effective and fundamental in sexual precocity programs, since reproductive performance increases considerably when animals have greater body weight at reproductive age.