J. Anim Sci.
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J. Anim Sci. 1959. 18:1053-1058.
© 1959 American Society of Animal Science
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Lysine and Methionine Supplementation of Corn-Soybean Oil Meal Rations for Pigs in Drylot1

D. C. Acker, D. V. Catron and V. W. Hays2

Iowa Agricultural and Home Economics Experiment Station,,3 Ames

Abstract

Corn-soybean oil meal rations containing 12% and 14% protein were supplemented with four levels of L-lysine and/or four levels of DL-methionine and, in a 2 x 4 x 4 factorial arrangement of treatments, fed to pigs weighing 23 lb. until they reached a weight of 100 lb. The 32 ration treatments were imposed on pens of two pigs, one barrow and one gilt, in each of two replicates.

On the 12% protein ration, rate of gain and feed efficiency were improved by L-lysine, up to the 0.10% supplemental level. Lysine supplementation of the 14% protein ration exerted no consistent effect. The protein level x supplemental lysine interaction was statistically significant for both rate of gain and feed conversion.

Methionine supplementation of the 12% ration exerted no apparent effect on either gains or feed conversion. Methionine supplementation of the 14% ration gave indication of improvement in rate of gain and feed efficiency, up to the 0.05% supplemental level; however, differences were not statistically significant.

Footnotes

1 Journal Paper No. J-3578 of the Iowa Agricultural and Home Economics Experiment Station, Ames, Iowa. Project No. 930.

2 The authors express their appreciation to Miss Helen Maddock and Dr. Gordon Ashton, former members of the Animal Husbandry Department, for assistance in planning and conducting the experiment reported herein, and E. I. du Pont de Nemours, Inc., Wilmington, Delaware, for grants-in-aid and materials which partially supported this work.

3 Department of Animal Husbandry.






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Copyright © 1959 by the American Society of Animal Science.