Abstract
Livestock systems require a thorough analysis of zootechnical and financial indicators. In this sense, the objective of this study was to evaluate the bioeconomic performance of feedlot bulls with different genetic groups in 2012 and 2013. The experiment was carried out on a farm in Paragominas, State of Pará. The confined animals belonged to the Nellore (NE), ½ Angus ½ Nellore (AN) and ½ Charolais ½ Nellore (CH) breeds. The indicators analyzed were the cost of production and economic indicators. Additionally, zootechnical indicators were evaluated, being considered NE, AN, and CH as treatments in a completely randomized design. The financial results of the total production cost were R$ 118,493.21 in 2012, and R$ 111,166.35 in 2013, and the profitability obtained was 11% in 2012 and 8% in 2013. Regarding the zootechnical indicators, the CH genetic group showed superiority (P <0.01) compared to the NE genetic group for the variables initial weight (IW), final weight (FW), weight gain (WG), average daily weight gain (DWG), and carcass yield (CY). The confinement proved to be economically viable, with positive margins and satisfactory profitability, and the CH genetic group had the best indicators and the highest increase in the final revenue of the activity.
Highlights
Confinement was consolidated as a tool for intensifying production, helping to meet the demand for beef, providing a shortening of the livestock cycle with the production of precocious bulls, and increased the working capital turnover ratio
The use of improved breeds is advantageous in feedlots, with the crossing between Bos taurus (Angus and Charolais) genotypes, a species widely raised in the southern country, and Bos indicus (Nellore), widely used in Brazil, and is receiving more importance in the recent decades (Vaz and Restle, 2001)
The feedlot termination system involves the use of advanced technology, the selection of animals that adapt to the process and the choice of the best nutritional plan (Wedekin et al, 1994); the high efficiency concerning the beef production in a feedlot is linked to a higher cost per arroba (@ - unit equivalent to 15 kilograms or 33 pounds) (Lopes and Magalhães, 2005)
Summary
Confinement was consolidated as a tool for intensifying production, helping to meet the demand for beef, providing a shortening of the livestock cycle with the production of precocious bulls, and increased the working capital turnover ratio. The feedlot termination system involves the use of advanced technology, the selection of animals that adapt to the process and the choice of the best nutritional plan (Wedekin et al, 1994); the high efficiency concerning the beef production in a feedlot is linked to a higher cost per arroba (@ - unit equivalent to 15 kilograms or 33 pounds) (Lopes and Magalhães, 2005) In this way, the efficiency of the process goes through strict cost control (Ferreira et al, 2005), whose determination has the purpose of verifying whether the system is being economically viable. Bioeconomic analysis is an important aid tool, associating economic analysis with animal performance data
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