análise de custos de diferentes grupos genéticos de bovinos de corte terminados em confinamento cost analyses on different beef cattle genetic groups finished in feedlot condition

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ID: 140591
2004
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Abstract
O desempenho de 149 animais, machos inteiros, confinados por períodos variáveis de acordo com acabamento de carcaça, foi utilizado para avaliar a eficiência econômica dos grupos genéticos Nelore sobreano, Nelore desmamado, ½ Valdostana ½ Nelore, ½ Simental ½ Nelore, ½ Braford ½ Brangus, ½ Braford ¼ Angus ¼ Nelore, Brangus, ½ Canchim ¼ Angus ¼ Nelore e ½ Canchim ¼ Simental ¼ Nelore. O custo operacional variável, o custo por quilograma de carne produzida e a margem bruta foram analisados pelo método dos quadrados mínimos ordinários, mediante modelo estatístico que incluiu o efeito do grupo genético e o peso inicial como covariável, comparando-se as médias pelo teste Duncan (P<0,05). Os maiores custos operacionais variáveis no período, em US$, foram do ½ Canchim ¼ Simental ¼ Nelore (160,8), Nelore desmamado (158,7) e ½ Canchim ¼ Angus ¼ Nelore (155,1). Os menores custos por quilograma de carne, em US$, foram do Nelore sobreano (0,79) e Brangus (0,82). A maior margem bruta, em US$, foi obtida pelo grupo genético Nelore sobreano (94,6), seguida do Brangus (71,5) e do ½ Simental ½ Nelore (46,6). Os grupos genéticos mais pesados no início do confinamento e que permaneceram menos tempo confinados apresentaram maior margem bruta.
Data on feedlot performance of 149 steers were used to evaluate the economic efficiency of yearling Nellore, weaned Nellore, ½ Valdostana ½ Nellore, ½ Simmental ½ Nellore, ½ Braford ½ Brangus, ½ Braford ¼ Angus ¼ Nellore, Brangus, ½ Canchim ¼ Angus ¼ Nellore and ½ Canchim ¼ Simmental ¼ Nellore. Variable operational costs, kg of meat costs, and gross margin income were analyzed by ordinary least squares procedure including the effects of genetic groups and initial weight in the feedlot as a covariate. The means were compared by Duncan test (P<.05). The largest variable operational costs in the period, in US$, were observed for ½ Canchim ¼ Simmental ¼ Nellore (160.8), weaned Nellore (158.7) and ½ Canchim ¼ Angus ¼ Nellore (155.1). The lowest kg of meat costs, in US$, were observed for yearling Nellore (0.79) and Brangus (0.82). The highest gross margin was obtained for yearling Nellore (94.6), followed by Brangus (71.5) and ½ Simmental ½ Nellore (46.6) The heaviest genetic groups in the beginning of the feed lot were confined for shorter periods and had the largest gross margins.
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ferreira2004arquivoanlise Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors ;I.C. Ferreira;M.A. Silva;R.P. Reis;K. Euclides Filho;G.R. Figueiredo
Journal Environmental research
Year 2004
DOI
10.1590/S0102-09352004000300015
URL
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352004000300015
Keywords
cost cattle

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