Article
Genotype by environment interactions on culling rates and 305-day milk yield of Holstein cows in 3 US regions.
Journal of dairy science - 1 Aug 2015
Tsuruta S, Lourenco D A L, Misztal I, Lawlor T J
Abstract excerpt
The objective of this study was to investigate genotype by environment interactions for culling rates and milk production in large and small dairy herds in 3 US regions, using genotypes, pedigree, and phenotypes. Single nucleotide polymorphism (SNP) marker variances were also estimated in these different environments. Culling rates including cow mortality were based on 6 Dairy Herd Improvement termination codes...
Topics
- Animals
- Breeding
- Cattle
- Dairying
- Female
- Gene-Environment Interaction
- Lactation
- Linear Models
- Milk
- Models, Genetic
- Polymorphism, Single Nucleotide
- United States
