Article
Impact of bovine somatotropin on ranking for genetic value of dairy sires for milk yield traits and somatic cell score.
Genetics and molecular research : GMR - 9 Mar 2007
Al-Seaf A, Keown J F, Van Vleck L D
Abstract excerpt
Records of Holstein cows were used to examine how different models account for the effect of bovine somatotropin (bST) treatment on genetic evaluation of dairy sires for yield traits and somatic cell score. Data set 1 included 65,720 first-lactation records. Set 2 included 50,644 second-lactation records. Set 3 included 45,505 records for lactations three, four and five. Estimated breeding values (EBV) of sires...
Topics
- Animals
- Cattle
- Dairying
- Environment
- Fats
- Female
- Genetic Variation
- Growth Hormone
- Lactation
- Linear Models
- Milk
- Quantitative Trait, Heritable
