beef cow, body condition, reproduction, nutrition
Mature Simnnental x Angus crossbred cows were fed differing Levels of nutrition from December to May in each of 3 years to create a wide range in cow body condition or fleshiness at the beginning of the calving season (beginning mid-March) and when turned to summer pasture (early May)1 month prior to the beginning of a 60-day breeding season ( early June). Cows that were fleshier in March, May or June cycled earlier and conceived earlier. Being thin in May or June had a more detrimental effect on pregnancy rate for cows that calved late in the calving season. A condition score of 4 for early calving cows and 5 for late calving cows at calving and breeding were the minimum body condition for high reproductive performance.
Number of Pages
South Dakota State University
Copyright © 1988 South Dakota State University
Pruitt, R.J. and Momont, P.A., "Effects of Body Condition on Reproductive Performance of Range Beef Cows" (1988). South Dakota Beef Report, 1988. 12.