Article
Genetic parameters for stayability of Holsteins in US organic herds.
Journal of dairy science - 1 Apr 2021
Hardie L C, Heins B J, Dechow C D
Abstract excerpt
The objectives of this study were to estimate genetic parameters for stayability in US organic Holstein dairy cows and estimate genetic correlations with nationally evaluated traits of interest. Stayability is the binary trait for success or failure to remain in the herd until a given time point. We used birth, calving, and cull dates from 16 USDA certified organic farms recommended by industry personnel as herds...
Topics
- Animals
- Cattle
- Female
- Lactation
- Longevity
- Milk
- Parity
- Parturition
- Phenotype
- Pregnancy
