Article
Genetic and phenotypic variation in sources of preweaning lamb mortality.
Journal of animal science - 1 Jul 1991
Gama L T, Dickerson G E, Young L D, Leymaster K A
Abstract excerpt
Information on causes of mortality to 8 wk weaning for 16,881 lambs of 10 line-breed groups by 594 sires born over a 5-yr period was analyzed by least squares procedures to estimate sire variance and covariance components within line and year-season. Heritability estimates were approximately 5% for total mortality in the binomial scale and near 10% when converted to a normal scale. Average heritability estimates...
Topics
- Animals
- Animals, Newborn
- Binomial Distribution
- Breeding
- Female
- Genetic Variation
- Least-Squares Analysis
- Male
- Models, Biological
- Mortality
- Phenotype
- Regression Analysis