Abstract
The objective of this work was to evaluate the productive efficiency in feed conversion and weight gain of two groups of animals used in the region of the State of Minas Gerais. Thus, it was intended to demonstrate through descriptive analyzes, the best yield of beef production in relation to its maintenance in the farm in a semiconfinement breeding system, carried out. Two groups of animals were separated from different blood grades, the Nellore breed and the crossbred mestizos. For the analyzes, the comparisons before and after the semiconfinement were carried out, as well as annotations of warm carcass weight, weight gain on days of semiconfinement and economic evaluation. Within the criteria to characterize the best investment, nellore presented better carcass yield, less time to gain weight and higher economic income.
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