Research shows that calf weaning age influences cow and calf performance as well as carcass traits. Spring calving cows were placed into three weaning groups:
- Early, calf age five months.
- Control, calf age seven months.
- Late, calf age nine months.
Cows were fed to achieve a body-condition score of five prior to calving. Calves were fed until the average backfat for the pen was estimated to be 0.4 inches. Body-condition scores improved as calf weaning age decreased. Average daily gain decreased and days on feed, numerical yield grade and percent grading Choice increased as weaning age decreased.