Impact of protein nutrition on reproduction in dairy cows.

  title={Impact of protein nutrition on reproduction in dairy cows.},
  author={James D. Ferguson and William Chalupa},
  journal={Journal of dairy science},
  volume={72 3},
In most but not all published studies, feeding diets with high concentrations of crude protein decreased reproductive efficiency. We were able to resolve some of the inconsistencies among published reports by considering the fate of consumed protein in the rumen and then using logistic regression analysis to identify factors affecting pregnancy. Our models showed that type and amount of protein fed explained much of the variation in conception rate. Age and dietary concentration of energy were… CONTINUE READING