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Poultry Department, University of Georgia, Athens, Georgia
Variations in dietary protein, energy and cholesterol failed to influence serum cholesterol levels in growing chicks when fed a diet very low in fat. Increases of serum cholesterol were obtained by the addition of corn oil to a diet containing cholesterol.
An inverse relationship between dietary protein and serum cholesterol was noted only when corn oil was present in the diet. This relationship was pronounced when cholesterol was incorporated in a corn oil supplemented diet. Growth responses were observed when corn oil was added isocalorically to the low-fat diet indicating that the chicks fed the low-fat diet may have developed a fatty acid deficiency. Greater growth response to the addition of corn oil occurred with diets low in protein which suggests that the protein level of the diet may greatly influence fatty acid deficiency.
2 This work was supported in part by research grant no. 3766 from the National Institutes of Health, U. S. Public Health Service, Department of Health, Education, and Welfare.
Manuscript received 27 January 1961.