Article
Improving the reliability of female fertility breeding values using type and milk yield traits that predict energy status in Australian Holstein cattle.
Journal of dairy science - 1 Jan 2016
González-Recio O, Haile-Mariam M, Pryce J E
Abstract excerpt
The objectives of this study were (1) to propose changing the selection criteria trait for evaluating fertility in Australia from calving interval to conception rate at d 42 after the beginning of the mating season and (2) to use type traits as early fertility predictors, to increase the reliability of estimated breeding values for fertility. The breeding goal in Australia is conception within 6 wk of the start...
Topics
- Animals
- Australia
- Breeding
- Cattle
- Energy Metabolism
- Female
- Fertility
- Fertilization
- Lactation
- Male
- Milk
- Phenotype
