Genetic parameters for production traits in primiparous Holstein cows estimated by random regression models Parâmetros genéticos para características produtivas de vacas primíparas da raça Holandesa estimados por modelos de regressão aleatória
The objective of this study was to estimate genetic parameters for milk, fat and protein yields of Holstein cows using 56,508; 35,091 and 8,326 test-day milk records from 7,015, 4,476 and 1,114 cows, calves of 359, 246 and 90 bulls, respectively. The additive genetic and permanent environmental effe...
Main Authors: | , , , , , |
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Format: | Article |
Language: | English |
Published: |
Sociedade Brasileira de Zootecnia
2011-01-01
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Series: | Revista Brasileira de Zootecnia |
Subjects: | |
Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982011000100012 |