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Strategies to improve uniformity of beef cattle production by selection

Grant number: 08/02440-0
Support type:Scholarships in Brazil - Master
Effective date (Start): September 01, 2008
Effective date (End): November 30, 2009
Field of knowledge:Agronomical Sciences - Animal Husbandry - Genetics and Improvement of Domestic Animals
Principal researcher:Sandra Aidar de Queiroz
Grantee:Haroldo Henrique de Rezende Neves
Home Institution: Faculdade de Ciências Agrárias e Veterinárias (FCAV). Universidade Estadual Paulista (UNESP). Campus de Jaboticabal. Jaboticabal , SP, Brazil


Three studies will be developed to compare different selection strategies to improve uniformity of beef cattle production. The first consists in a comparison of dispersion measures of progeny performance and its use to penalize expected breeding value of sires with less uniform progeny. The second involves evaluation of different models of estimating variance components as a way to improve end product uniformity by selection. In the two first studies, data from different genetic groups of beef cattle will be used. A third study will be carried out to investigate, by stochastic simulation, economic consequences of using selection strategies to improve uniformity, under variation of genetic parameters and economic value of phenotypic variability.

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Academic Publications
(References retrieved automatically from State of São Paulo Research Institutions)
NEVES, Haroldo Henrique de Rezende. Critérios de seleção para incremento de uniformidade de produção em bovinos de corte. 2010. Master's Dissertation - Universidade Estadual Paulista (Unesp). Faculdade de Ciências Agrárias e Veterinárias. Jaboticabal Jaboticabal.

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