What is the optimum length of the Breeding Season?
The length of the breeding season is an important factor in determining pregnancy rate. Late calving cows have lower weaning weights at weaning than early-calving cows. Reduced calving efficiency and long calving seasons typically results in poorer reproductive performance in beef cows. Shortening the breeding season from 150 days or even from 90 days to a 60 day season is an improvement.