Milk yield persistency in Brazilian Gyr cattle based on a random regression model
نویسندگان
چکیده
منابع مشابه
Milk yield persistency in Brazilian Gyr cattle based on a random regression model.
With the objective of evaluating measures of milk yield persistency, 27,000 test-day milk yield records from 3362 first lactations of Brazilian Gyr cows that calved between 1990 and 2007 were analyzed with a random regression model. Random, additive genetic and permanent environmental effects were modeled using Legendre polynomials of order 4 and 5, respectively. Residual variance was mod...
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ژورنال
عنوان ژورنال: Genetics and Molecular Research
سال: 2012
ISSN: 1676-5680
DOI: 10.4238/2012.june.15.9