Am. Soc. Anim. Prod.
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Am. Soc. Anim. Prod. 1925:155-166
© 1925 American Society of Animal Science
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The Protein Requirements of Fall Pigs

C. C. Culbertson and John M. Evvard

Iowa Agricultural Experiment Station

Abstract

The study of the protein requirements of fall pigs grown and farrowed in dry lot, from near weaning time to a 225-pound market weight, is interesting and profitable from the fundamental standpoint of nutrient consumption and requirements. The term requirement as used in this paper refers to the protein consumption under different feeding conditions, and does not imply a minimum.

How much crude protein does the average full-fed growing and fattening fall pig consume per day when he is fully or largely allowed to balance his own ration from different combinations of feed? How much of the relatively high-priced crude protein does it take on the average for 100 pounds of gain on the fall pig? There are a number of protein supplements to corn used in swine feeding practice, but what about these supplements? Is the crude protein from one as efficient from both the physiological and economical standpoints as the crude protein from another?






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Copyright © 1925 by the American Society of Animal Science.