J. Anim Sci.
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J. Anim Sci. 1972. 34:587-591.
© 1972 American Society of Animal Science
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Lysine Supplementation of High Lysine Corn and Normal Corn-Peanut Meal Diets for Growing Swine

H. R. Thomas and E. T. Kornegay1, 2,

Virginia Polytechnic Institute and State University, Holland and Blacksburg, Virginia 24061

Abstract

Three trials involving 368 pigs averaging from 18.5 to 24.6 kg initially were conducted to compare high lysine corn- and normal corn-peanut meal diets with and without L-lysine supplementation. Rate of gain was greater and feed/gain was less for pigs fed high lysine corn-peanut meal diets unsupplemented with lysine as compared with unsupplemented normal corn-peanut meal diets, although the performance was suboptimum with both diets without added lysine. Average daily gain, feed intake and feed/gain were improved when lysine was added to either high lysine corn or normal corn. Rate of gain and feed/gain were positively related to the dietary lysine content of the diets irrespective of the kind of corn up to a level of about 0.85% total lysine. It was concluded when diets for growing pigs are formulated to contain about 16% protein using high lysine corn and peanut meal, the lysine content of high lysine corn, although higher than that of normal corn, is not adequate to overcome the lysine deficiency.

Footnotes

1 Tidewater Research Station and Department of Animal Science.

2 Appreciation is expressed to Mr. C. E. Babb for caring for animals; to Dr. C. Y. Kramer for statistical analysis; to Mr. Peter Gati for laboratory analysis; to Dr. J. P. Fontenot for advice and to Merck and Co., Railway, N. J. for lysine.






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Copyright © 1972 by the American Society of Animal Science.