Medycyna Wet. 64 (9), 1115-1117, 2008
Hanczakowski P., Szymczyk B., Frys-Żurek M.
Effect of dietary plant or animal fats on serum fatty acid profile and cholesterol and triacylglycerol content in rats
The effect of plant (linseed oil and olive oil) or animal fat (fish oil or beef tallow) on fatty acids, cholesterol and triacylglycerol content of rat blood was investigated. Four experimental groups, each comprised 6 rats weighing about 160 g at the beginning of the experiment were fed standard diets containing 100 per 1 kg of one of these fats. After 6 weeks rats were anaesthetized and blood was collected by cardiac puncture. It was found that differences in fatty acids content in rat blood especially in the case of saturated acids with a shorter chain (myristic and palmitic) were smaller than those in the dietary fats but the differences in unsaturated fatty acids also decreased. The lowest levels of cholesterol and triacylglycerol were found in the blood of rats fed with linseed oil.
Keywords: fatty acids, cholesterol, triacylglycerol, rats