A.S. Series 73-32
Seventeen registered Angus, Hereford and Shorthorn cows calved in September, 1972. The cows calved on pasture and remained on pasture until early November. From November 10 to December 29, the cows were bred for 1973 fall calves. On December 29, 1972, one-half of the calves were weaned and started on a self-fed ration. The remaining one-half of the calves were allowed to continue nursing the cows, but the calves also had access to a creep feeder containing the same ration used for the weaned calves. At the start of the experiment the calves were randomly divided by sex, breed and age. At this time, December 29, 1972, the average age of all calves was 115 days and they averaged 250 lb. in weight. The experiment was conducted over a 90-day winter feeding period which was initiated on December 29, 1972, and was completed on March 29, 1973. The early weaned calves made an average per head daily gain of 2.49 lb. over the 90-day period and the nursing calves gained 2.35 lb. daily. The early weaned calves averaged 470 lb. per head at 205 days of age and the nursing calves averaged 465 lb.
Number of Pages
Department of Animal Science, Agricultural Experiment Station, South Dakota State University
McCone, William, "Weaning Age and Management Systems for Fall Born Beef Calves" (1973). South Dakota Cattle Feeders Field Day Proceedings and Research Reports, 1973. 4.