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Effect of Liquid Diet on Development of Rumen Papillae during the First Eleven Months in Dairy Steers¹

Department of Dairy Science and of Animal Husbandry and Nutrition, University of Florida, Gainesville

ABSTRACT

Swanson and Harris (4) observed rumination in calves as young as 2 wk. of age and Marshall et al. (2) found that fermentation can be well established in the rumen of calves 20 to 30 days of age. Rumen papillation was observed by Flatt et al. (1) and Sander et al. (3) to occur when acetates, butyrates, and propionates were added to an exclusive milk diet for young calves. Tomate et al. (5) found that papillary development was abnormal and limited when butyric acid or an acetic-propionic acid combination was added to the diet of calves which otherwise received only milk from four days to 12 wk. of age. Essentially, no papillary development was found by any of these workers in milk-fed calves which received no dietary supplements.

In the present study, observations were made on steers from 9 to 11 mo. of age which had received a milk diet from birth.

¹ Florida Agricultural Experiment Stations Journal Series, No. 1068.