Correlations Among Records of Unrelated Cows in the Same Herd and the Same and Different Year-Seasons
Open Access
- 1 January 1966
- journal article
- research article
- Published by American Dairy Science Association in Journal of Dairy Science
- Vol. 49 (1) , 61-64
- https://doi.org/10.3168/jds.s0022-0302(66)87787-1
Abstract
Correlations were computed between pairs of lst-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 2 seasons apart was .06. The pattern of correlations between a pair of records made more than 1 or 2 years apart appears to be unpredictable.This publication has 2 references indexed in Scilit:
- Heritability Estimates when Dams and Daughters are in the Same and Different HerdsJournal of Dairy Science, 1965
- Actual and Expected Accuracy of Sire Proofs under the New York System of Sampling BullsZeitschrift für Tierzüchtung und Züchtungsbiologie, 1961