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Dietary Hormones and Fat and Serum Cholesterol, Transaminases and Copper in Swine¹

Department of Animal Diseases and Animal Husbandry, Georgia Coastal Plain Experiment Station, Tifton, Georgia

Young, growing barrow pigs were fed either varying levels of testosterone or a single level of stilbestrol supplemented with 5 or 10% of beef tallow and the serum was analyzed for cholesterol, glutamic oxalacetic and glutamic pyruvic transaminases and copper.

Whereas it was found that testosterone caused a marked reduction in serum cholesterol, stilbestrol had no apparent effect. Castration resulted in hypercholesteremia. Beef tallow fed at 5 and 10% of the diet produced higher levels of serum cholesterol.

Stilbestrol caused an increase in serum copper, but testosterone had no effect. None of the factors studied influenced the serum transaminases tested.

Manuscript received 28 March 1960.