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Developing breeding objectives for beef cattle production 1. A bio-economic simulation model. ACTA ACUST UNITED AC 2010. [DOI: 10.1017/s1357729800009188] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
AbstractA deterministic simulation model was constructed to develop breeding objectives and estimate biological and economic values. The model simulates life-cycle production of a breeding cow and growth performance of her offspring. Input variables are divided into four categories: animal traits, nutritional variables, management variables and economic variables. The economic variables assume typical beef cattle production in Japan. The outputs from the model include cow-calf performance, feedlot performance and biological and economic efficiency. The model's ability to simulate herd composition, food intake of cow and calves, cow body-weight changes, empty body and carcass composition of feedlot animals and production efficiencies is illustrated.
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Wolfová M, Wolf J, Zahrádková R, Přibyl J, Daňo J, Krupa E, Kica J. Breeding objectives for beef cattle used in different production systems. ACTA ACUST UNITED AC 2005. [DOI: 10.1016/j.livprodsci.2004.12.019] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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