Evaluation of dairy bulls in Ontario for calving ease of offspring.

@article{Cady1982EvaluationOD,
  title={Evaluation of dairy bulls in Ontario for calving ease of offspring.},
  author={R A Cady and Edward B Burnside},
  journal={Journal of dairy science},
  year={1982},
  volume={65 11},
  pages={2150-6}
}
The first sire evaluations for calving ease for bulls used in Ontario were published in May, 1981. Evaluations used calving records collected by Ontario Dairy Herd Improvement Association from all supervised herds from May, 1980, to April, 1981. A total of 34,240 records including herd, breed, sire, and cow identification, date of calving, and information… CONTINUE READING