Prediction of fertility from calfhood traits of Angus and Simmental heifers.

@article{Bergmann1992PredictionOF,
  title={Prediction of fertility from calfhood traits of Angus and Simmental heifers.},
  author={Jos{\'e} Aur{\'e}lio Garcia Bergmann and William D. Hohenboken},
  journal={Journal of animal science},
  year={1992},
  volume={70 9},
  pages={2611-21}
}
The objectives of this study were to quantify the relationships between traits observed before the first breeding season and fertility of 946 Angus and 351 Simmental heifers and to use those traits to develop prediction equations for heifer fertility. Logistic regression methodology was used. Traits investigated were Julian birth date, age of the heifer's dam, birth weight, actual weaning and yearling weights, weaning and yearling weight ratios, 205-d weight, 365-d weight, and birth-weaning… CONTINUE READING