AVALIAÇÃO DOS CUSTOS DE ALIMENTAÇÃO PARA BOVINOS NELORE COM DIFERENTES CLASSIFICAÇÕES NO TESTE DE EFICIÊNCIA ALIMENTAR

Abstract

A national livestock industry has been facing new challenges, in addition to the history of rising production costs. For beef cattle, production has been challenged to establish systems capable of producing efficient quality meat. An alternative to overcome these challenges is the identification of more efficient animals in the utilization of foods consumed with higher carcass production. The objective of this study was to evaluate the feeding costs of young bulls tested in the Embrapa 2019 Feed Efficiency Assessment with a view to comparing feed costs with animal consumption when classified by Residual Feed Consumer (CAR) and Residual Gain (GR) and the union of these two characteristics. For this, we analyzed data from Dry Matter Consumption (CMS), Daily Average Gain (GMD), arrobas gain and feed cost during the evaluation period of 49 non-castrated cattle with average weight of 520 kg. The animals were classified in subgroups regarding the CAR and GR values in Elite, Superior, Regular and Lower. A new animal classification group was also created regarding the association of CAR and GR. At the end of the calculations, it was seen that when observing the average CMN of the elite subgroups of the CAR classification, these consumptions were 5.2 kg / day or less in the lower group in this same classification, resulting in a saving of R $ 1.12 / day. For GR, the animals classified as elite presented only R $ 0.30 in economy when compared to the inferior ones. Note that by analyzing the food cost values per arroba, the subgroup of animals with negative CAR and positive GR saved R $ 15.00 for the production of an at sign when compared to the subgroup of animals classified as positive CAR and negative GR, thus concluding that these were the most efficient animals in the conversion of food to carcass.