Estimation of genetic parameters for test-day milk yield in Holstein cows using a random regression model

Test-day milk yield records of 11,023 first-parity Holstein cows were used to estimate genetic parameters for milk yield during different lactation periods. (Co)variance components were estimated using two random regression models, RRM1 and RRM2, and the restricted maximum likelihood method, compare...

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Bibliographic Details
Main Author: Cobuci,Jaime Araujo (author)
Other Authors: Euclydes,Ricardo Frederico (author), Lopes,Paulo Sávio (author), Costa,Claudio Napolis (author), Torres,Robledo de Almeida (author), Pereira,Carmen Silva (author)
Format: article
Language:eng
Published: 2005
Subjects:
random regression models
REML method
genetic parameters
test-day milk yield
Holstein cows
Online Access:http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572005000100013
Country:Brazil
Oai:oai:scielo:S1415-47572005000100013

Internet

http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572005000100013

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