Genetic and environmental effects on serum cholesterol of dairy cattle of various ages.

@article{Arave1975GeneticAE,
  title={Genetic and environmental effects on serum cholesterol of dairy cattle of various ages.},
  author={Clive W. Arave and Ronald H. Miller and Rodney Lamb},
  journal={Journal of dairy science},
  year={1975},
  volume={58 3},
  pages={423-7}
}
Serum cholesterol of dairy cattle, particularly when measured on animals of the same approximate age, is a heritable trait. Heritabilities were .50 for first lactation cows and .19 for heifers from 2 to 22 mo of age. Serum cholesterol increases with increasing age. Serum cholesterol was 192.8 mg/100 ml in cows and 121.4 mg/100 ml in heifers. Serum cholesterol was relatively low at the onset of lactation, increased at mid-lactation, and leveled off or decreased in late lactation. Month of… CONTINUE READING