Differential weight of Conventional Nelore and Senepol weaning calves

Abstract

Brazilian agribusiness represents an important economic activity in the country, responsible for a large part of the generation of wealth and also stands out in the generation of employment and income (FERRAZZA; CASTELANNI, 2021). The breeds covered in the study bring important benefits to the livestock farmer. In the case of the Nelore breed, known for its distinctive characteristics, including rapid weight gain, remarkable resistance to disease, reproductive longevity in both males and females, excellent maternal abilities in females, in addition to producing high quality meat, specific for its low amount of fat and a sharp flavor. Furthermore, it is also recognized for its quality carcass (STAMOULIS, 2020). Heterosis is the measure of the average superiority of the F1 generation relative to the parental average, expressed in terms of characteristics such as weight or length. It is an indication of how superior the media of the F1 generation is to the media of the parent breeds (ELER, 2015). According to Carvalho (2018), when using the industrial classification system, it is important to take several factors into consideration. Some of these factors include market demand, the environment in which the animals will be raised, the level of management available, the anticipated use of artificial insemination, the production system, the objectives of the enterprise, the number of vacancies available and the size and the size and number of folders. Crossings between breeds emerge as an effective, quick and economically advantageous alternative in the search for greater productivity in breeding herds. This approach stands out for the gains obtained through heterosis and genetic complementarity (AZAMBUJA. 2013). The results show superior performance in the Senepol batch of classifieds compared to the Nellore batch.