Animal Science, Department of
Department of Animal Science: Faculty Publications
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Document Type
Article
Date of this Version
July 1965
Abstract
Correlations were computed between pairs of first-lactation milk records of unrelated Holstein cows in New York, where the records were made in the same herd and same year-season of freshening, and in the same herd but different year-seasons of freshening. Records were expressed as deviations from herd-mate averages. The average correlation between pairs in the same herd-year-season was .01. The average correlation when the pair of records was made one season apart was .08, and two seasons apart was .06. The pattern of correlations between a pair of records made more than 3 or 2 yr apart appears to be unpredictable.
Comments
Published in Journal of Dairy Science. Copyright © 1965 American Dairy Science Association. Used by permission.