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Effect of Various Triglycerides on Blood and Tissue Cholesterol of Calves¹

Nutritional Physiology Group, Department of Animal Science, Iowa State University, Ames, Iowa 50011

Blood and tissue cholesterol responses were measured in six groups of four calves each fed for 24 weeks reconstituted nonfat dry milk in which 30% of calories was derived from one of the following: soybean oil (SBO), beef tallow (T), medium-chain triglycerides (MCT), and 1:1 soybean-oil/tallow (SBO/T) combination. Two groups of four calves each also were fed SBO-milk plus dry feed and T-milk plus dry feed, respectively. Blood cholesterol concentration was significantly greater in SBO-fed calves than in T-fed calves. Calves fed MCT-milk had significantly lower blood cholesterol than calves fed T- or SBO-milk. Significant differences in cholesterol concentration were noted for the liver, perianal fat, and for omental fat.

KEY WORDS: • cholesterol • bovine • soybean oil • tallow • medium-chain triglycerides

¹ Supported in part by funds provided by the Iowa Beef Industry Council and by Grant No. HL 04969, Department of Health, Education and Welfare. Journal Paper No. J-8904 of the Iowa Agriculture and Home Economics Experiment Station. Ames, Iowa, Project 1908.

² Author to whom reprint requests should be addressed.

Manuscript received 25 July 1977.