J. Anim Sci.
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J. Anim Sci. 1952. 11:92-96.
© 1952 American Society of Animal Science
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Effect of Vitamin B12 and Aureomycin Concentrates on the Growth Rate of Unthrifty Weanling Pigs

J. C. Blight, James X. King and N. R. Ellis

United States Department of Agriculture1

Abstract

Weanling pigs of various degrees of unthriftiness were fed a well balanced diet supplemented with vitamin B12 and aureomycin concentrates.

The addition of vitamin B12 to the diet of slow-growing, unthrifty pigs did not significantly affect their gain.

Similar pigs receiving aureomycin as supplement grew at a significantly faster rate and were more uniform in size and more thrifty in appearance.

Based on differences in initial weight, the response to aureomycin can be attributed primarily to its effect on the lighter more unthrifty pigs.

The factors contributing to the unthrifty condition of the pigs and the mode of action of the aureomycin were not apparent from this experiment.

Footnotes

1 Bureau of Animal Industry.






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Copyright © 1952 by the American Society of Animal Science.