Persistency of lactation using random regression models and different fixed regression modeling approaches

Persistency of lactation using random regression models and different fixed regression modeling approaches

Milk yield test-day records on the first three lactations of 25,500 Holstein cows were used to estimate genetic parameters and predict breeding values for nine measures of persistency and 305-d milk yield in a random regression animal model using two criteria to define the fixed regression. Legendre...

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Bibliographic Details
Main Authors:	Jaime Araujo Cobuci, Claudio Napolis Costa
Format:	Article
Language:	English
Published:	Sociedade Brasileira de Zootecnia 2012-09-01
Series:	Revista Brasileira de Zootecnia
Subjects:	breeding value Legendre polynomial selection test-day milk yield
Online Access:	http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982012000900005

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