Article
Genetic parameters of conformation traits, milk yield, and herd life in Holsteins.
Journal of dairy science - 1 Jul 1992
Short T H, Lawlor T J
Abstract excerpt
Genetic parameters were estimated simultaneously for 5 herd-life traits, 15 conformation (type) traits, and milk yield measured in first lactation for 128,601 Holstein cows. Heritabilities of all traits were higher in registered than in grade cows. Genetic correlations of linear type traits with first lactation yield ranged from -.48 for udder depth to .54 for dairy form. Genetic correlations among milk yield and...
Topics
- Animals
- Body Constitution
- Breeding
- Cattle
- Female
- Lactation
- Longevity
- Male
- Phenotype
