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Avaliação Econômica De Diferentes Estratégias De Ganho De Peso Diário Na Terminação De Bovinos Em Confinamento

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  • Resende Filho, Moises de Andrade

Abstract

Esse artigo avalia a viabilidade econômica da terminação de bovinos em confinamento para o ano de 2008. Dezessete cenários são simulados considerando-se diferentes ganhos de peso vivo diário para 220 animais, machos castrados, ½ Zebu - ½ Holandês, com peso inicial médio de 354 kg, confinados por 120 dias. Utiliza-se equações capazes de gerar os valores das exigências nutricionais dos animais para cada estratégia de ganho de peso. Os valores calculados das exigência nutricionais parametrizam um modelo de programação linear capaz de minimizar o custo da ração a ser fornecida. Assim, o custo da alimentação dos animais que é o único custo variável do confinamento, é calculado multiplicando-se o custo por kg da ração de custo mínimo pelo consumo voluntário de matéria seca, estimado segundo o NRC (1984). Os demais custos fixos e quase-fixos são também estimados. Os resultados obtidos indicam que o confinamento será uma atividade economicamente viável em 2008 e que a estratégia em que o ganho de peso diário é 1,05 kg geraria o maior lucro.---------------------------------------------This article evaluates the economic feasibility of finishing beef cattle in feedlot for the year 2008. Seventeen scenarios are simulated considering a 120 confinement period and different liveweight gains for 220 castrated bulls, ½ Zebu - ½ Holstein, with an initial liveweight of 354 kg. Equations are employed so to calculate nutritional requirements that will parameterize a linear programming problem set to find the minimum cost ration. Feeding costs are obtained by multiplying the minimum cost ration unitary cost by the total voluntary dry matter intake, estimated according to NRC (1984). The remaining fixed and quasi-fixed costs are also estimated. Results show that finishing beef cattle in feedlot is expected to be profitable for the year 2008 and that the strategy characterized by a daily liveweight gain of 1.05 kg is the best one among those simulated.

Suggested Citation

  • Resende Filho, Moises de Andrade, 2008. "Avaliação Econômica De Diferentes Estratégias De Ganho De Peso Diário Na Terminação De Bovinos Em Confinamento," 46th Congress, July 20-23, 2008, Rio Branco, Acre, Brazil 112737, Sociedade Brasileira de Economia, Administracao e Sociologia Rural (SOBER).
  • Handle: RePEc:ags:sbrfsr:112737
    DOI: 10.22004/ag.econ.112737
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    Keywords

    Livestock Production/Industries;

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