Variance component estimates applying random regression models for test-day milk yield in Caracu heifers (Bos taurus Artiodactyla, Bovidae)

Variance component estimates applying random regression models for test-day milk yield in Caracu heifers (Bos taurus Artiodactyla, Bovidae)

Random regression models (RRM) were used to estimate covariance functions for 2,155 first-lactation milk yields of native Brazilian Caracu heifers. The models included contemporary group (defined as year-month of test and paddock) fixed effects, and quadratic effect of age of cow at calving. Genetic...

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Bibliographic Details
Main Authors: Lenira El Faro, Vera Lucia Cardoso, Lucia Galvão de Albuquerque
Format: Article
Language:English
Published: Sociedade Brasileira de Genética 2008-01-01
Series:Genetics and Molecular Biology
Subjects:
covariance functions
dairy cattle
genetic parameters
longitudinal data
milk yield
Online Access:http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572008000400011

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