2010
DOI: 10.1590/s1516-35982010000700013
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Alternatives for analysis of performance data and ranking of Charolais x Nellore crossbred bulls in performance tests

Abstract: -It was evaluated alternatives for analysis of performance records and ranking of Charolais × Zebu crossbred bulls. Data of weight at six ages and average daily weight gain in eight periods of 883 21/32 Charolais + 11/32 Nellore bulls in performance tests were used. The direct additive genetic values were predicted in single trait analysis using animal models with classificatory fixed effects of contemporary groups and age of dam at calving and age of animal at weighing as linear covariable, depending on the t… Show more

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Cited by 4 publications
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“…The ancestors retained in the pedigree were those that were parents of the animals with data or that were connected to other animals in the pedigree (Toral and Alencar, 2010 h (j) is the coefficient of the linear regression of the final age k, nested in test j, for trait h; Age k is the final age k;…”
Section: Methodsmentioning
confidence: 99%
“…The ancestors retained in the pedigree were those that were parents of the animals with data or that were connected to other animals in the pedigree (Toral and Alencar, 2010 h (j) is the coefficient of the linear regression of the final age k, nested in test j, for trait h; Age k is the final age k;…”
Section: Methodsmentioning
confidence: 99%