Simulation and economic analysis of bovine sex selection
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Data
2013-05-01
Autores
Beltrame, Renato Travassos
Quirino, Celia Raquel
Barioni, Luís Gustavo
Lima, Vera Fernanda Martins Hossepian de [UNESP]
Título da Revista
ISSN da Revista
Título de Volume
Editor
Sociedade Brasileira de Zootecnia
Resumo
A simulation model implemented in the programming software Delphi XE® was applied to evaluate sex selection in bovine. The hypothesis under investigation was that a dynamic model with stochastic and deterministic elements could detect the sexed semen technique to minimize pregnancy cost and to determine the adequate number of recipients required for in vivo (ET) and in vitro embryo production (IVP) in the proposed scenarios. Sex selection was compared through semen sexed using flow cytometry (C1) and density gradient centrifugation techniques (C2) in ET and IVP. Sensibility analyses were used to identify the adequate number of recipients for each scenario. This number was reinserted into the model to determine the biological and financial values that maximized ET and IVP using sexed semen (C1M and C2M). New scenarios showed that the density gradient technique minimized pregnancy cost based on the proposed scenarios. In addition, the adequate number of recipients (ET - C1M - 115 and C2M - 105)/(IVP - C1M - 145 and C2M - 140) per donor used was determined to minimize the pregnancy cost in all scenarios.
Descrição
Palavras-chave
Beef cattle, In vitro fertilization, Modeling, stochastic simulation
Como citar
Revista Brasileira de Zootecnia. Sociedade Brasileira de Zootecnia, v. 42, n. 5, p. 319-324, 2013.