The Nutritional Value of Normal and High Lysine Corns for Weanling and Growing-Finishing Swine When Fed at Four Lysine Levels

Authors

G. L. Asche, University of Nebraska-Lincoln
A. J. Lewis, University of Nebraska-LincolnFollow
E. R. Peo, Jr., University of Nebraska-Lincoln
J. D. Crenshaw, University of Nebraska-LincolnUniversity of Nebraska-Lincoln

Date of this Version

1985

Comments

Published in JOURNAL OF ANIMAL SCIENCE 60 (1985), pp. 1412-1428. Copyright © 1985 American Society of Animal Science. Used by permission.

Abstract

One-hundred-ninety-two weanling pigs from two separate trials, (initial weight 6.0 and 5.6 kg) and 400 growing-finishing pigs (initial weight 17 kg) were fed normal and high lysine corn diets containing four levels of lysine in a 2 • 4 factorial arrangement. Crossbred (Large White • Landrace x Duroc) pigs were used in all experiments. The objectives of the experiments were to (1) compare normal and high lysine corn when fed at different lysine levels, (2) determine the lysine requirements for the three stages of growth and (3) evaluate the effect of protein level on the lysine requirement. All diets were balanced on a lysine basis. The results indicated that both weanling and growing-finishing pig performance and final carcass composition were similar for pigs fed normal or high lysine corn diets balanced on a lysine basis.