Effects of Moderate Lysine Deficiency on Digestibility and Metabolisable Energy of Diets and on Nitrogen Retention and Uric Acid Excretion in Chicks

Solberg, J

doi:10.1080/00015127109433445

Cited by 7 publications

(1 citation statement)

References 17 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Since the present work was begun, papers have appeared reporting changes in the composition of weight gain due to dietary levels of amino acid mixtures (Velu et al, 1971), or the effects of methionine and lysine on food intake Solberg, 1971) and on carcass composition (Moran, 1971;Thomas et al, 1973). Earlier Garew and Hill (1961) showed that chicks fed on a methioninedeficient diet had greater gains in tissue fat but lower gains of protein than those fed on methionine-adequate diets, and that these differences in body composition were due entirely to the differences in food intake.…”

Section: Introductionmentioning

confidence: 95%

The replacement of some of the soybean meal by the first‐limiting amino acids in practical broiler diets

Lipstein

Bornstein

Bartov

1975

British Poultry Science

View full text Add to dashboard Cite

1. Four trials were carried out with broilers from 5 to 9 weeks of age in order to determine the effect of reducing dietary protein concentration, with and without special supplementations of methionine and lysine, on the amount of carcass fat.2. In all trials fat deposition increased progressively as the protein concentrations of well-balanced standard finisher diets were lowered by replacing soybean meal with sorghum grains (milo).3. The increased degree of fatness was the result of graded increases in food consumption, and consequent decreases in food utilisation, caused by inadequate dietary protein.4. In three out of four trials the above negative trends could be partly or completely reversed by special supplementations with methionine and lysine in amounts to restore the dietary concentration of these firstlimiting amino acids to those of the control diets.5. It appears that broilers overeat in a compensatory attempt to obtain the limiting amino acids required for optimal growth rate, as long as the deficiency is not severe enough to cause an amino acid imbalance.

show abstract

Section: Introductionmentioning

confidence: 95%