Genetic parameters for test day milk yield of first lactation Holstein cows estimated by random regression using Legendre polynomials Parâmetros genéticos para a produção de leite do dia do controle da primeira lactação de vacas da raça Holandesa estimadas por regressão aleatória com polinômios de Legendre

Data comprising 263,390 test-day (TD) records of 32,448 first parity cows calving in 467 herds between 1991 and 2001 from the Brazilian Holstein Association were used to estimate genetic and permanent environmental variance components in a random regression animal model using Legendre polynomials (L...

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Bibliographic Details
Main Authors: Claudio Napolis Costa, Claudio Manoel Rodrigues de Melo, Irineu Umberto Packer, Ary Ferreira de Freitas, Nilson Milagres Teixeira, Jaime Araujo Cobuci
Format: Article
Language:English
Published: Sociedade Brasileira de Zootecnia 2008-04-01
Series:Revista Brasileira de Zootecnia
Subjects:
Online Access:http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982008000400003