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Full-Text Articles in Animal Sciences
The Nutritional Value Of Normal And High Lysine Corns For Weanling And Growing-Finishing Swine When Fed At Four Lysine Levels, G. L. Asche, A. J. Lewis, E. R. Peo, Jr., J. D. Crenshaw
The Nutritional Value Of Normal And High Lysine Corns For Weanling And Growing-Finishing Swine When Fed At Four Lysine Levels, G. L. Asche, A. J. Lewis, E. R. Peo, Jr., J. D. Crenshaw
Department of Animal Science: Faculty Publications
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 …
An Evaluation Of Threonine And Isoleucine As The Third And Fourth Limiting Amino Acids In Corn For Growing Swine, D. A. Grosbach, A. J. Lewis, E. R. Peo, Jr.
An Evaluation Of Threonine And Isoleucine As The Third And Fourth Limiting Amino Acids In Corn For Growing Swine, D. A. Grosbach, A. J. Lewis, E. R. Peo, Jr.
Department of Animal Science: Faculty Publications
A metabolism experiment and two growth experiments were conducted to determine if threonine and isoleucine are the third and fourth limiting amino acids in corn for growing swine. In each experiment there were four dietary treatments. The basal diet contained corn fortified with minerals, vitamins, lysine and tryptophan. Threonine additions of 0 or .17% and isoleucine additions of 0 or .22% of the diet were evaluated in a 2 • 2 factorial arrangement of treatments. The addition of threonine reduced (P<.001) the daily urinary excretion of urea N and total N. There was a tendency for urea N excretion to be reduced further when isoleucine was added in combination with threonine.