J. Anim Sci.
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J. Anim Sci. 1964. 23:694-699.
© 1964 American Society of Animal Science
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Vitamin B6 Requirement of Early-Weaned Pigs1,2,3,

R. F. Sewell, D. Nugara4, R. L. Hill5 and W. A. Knapp6

University of Georgia, Athens

Abstract

Five trials, involving a total of 150 early-weaned pigs, were conducted to determine the vitamin B6 requirement and to study the influence of fat on the requirement for this vitamin.

A highly significant linear increase in growth rate, with a corresponding improvement in feed efficiency, resulted from vitamin B6 supplementation of the purified basal diet used. Maximum gains and efficiency of feed utilization were obtained on diets containing 0.8 mg. of vitamin B6 per lb. of feed.

Under the conditions of these experiments the vitamin B6 requirement of the pig is greater than 0.4 mg. per lb. of feed, but not more than 1.6 mg. per lb. Logarithmic curves constructed from the data in which growth rate was plotted against the vitamin B6 level of the diet indicate a requirement of approximately 0.8 mg. vitamin B6 per lb. of feed for pigs 3 to 8 weeks of age.

No measurable influence of corn oil on the vitamin B6 requirement was obtained in these studies, since close agreement was obtained when the requirement was determined with diets containing either 2% or 12% corn oil.

Footnotes

1 Journal Paper No. 326 of the College Experiment Station, University of Georgia, College of Agriculture Experiment Stations.

2 Grateful acknowlegement is due American Cyanamid Company; Distillation Products Industries; Merck and Company, Inc.; and Monsanto Chemical Company for supplying some of the materials used.

3 Sincere appreciation is also due J. L. Carmon for the statistical analyses and to A. M. Lynn, herdsman, for assistance in conducting this study.

4 Present address: Veterinary Research Laboratory, Peradeniya, Ceylon.

5 Present address: Security Mills, Inc., Knoxville, Tennessee.

6 Present address: Morris Research Laboratories, Topeka, Kansas.






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Copyright © 1964 by the American Society of Animal Science.