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Five Years' Results in Individual Limited and Full-Feeding of Growing and Fattening Calves^*

Michigan Agricultural Experiment Station

Abstract

An experiment was inaugurated at the Michigan Agricultural Experiment Station in 1935 to study some of the factors involved in producing choice grade yearling beef. A cooperative agreement was made with the Bureau of Animal Industry, United States Department of Agriculture, in order to conduct complete analytical tests concerning quality in the meat. The meat studies have not been completed, and only the data concerning production factors will be presented briefly here.

Ten purebred cows have been fed individually during each winter and they have grazed with their calves on pasture during the summer. Calves were born during April and May, with a few exceptions. Necessary cow replacements were taken from the College breeding herd to provide ten calves of suitable age, breeding, and sex for pairing into two groups.

Winter feed records have been chiefly with Aberdeen-Angus cows, while among the calves finished for slaughter were 25 Angus, 13 Herefords, 4 Shorthorns, and 4 crossbreds. Four calves died during the course of the five tests, chiefly from pneumonia during early winter.

^* Journal Article No. 487 (N.S.) of the Michigan Agricultural Experiment Station.