Effect of different dietary fats on the content of fatty acids in the the blood serum and in the longissimus dorsi muscle of rats
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Department of Animal Nutrition and Feed Management, Agricultural University, Rakowiecka 26/30, 02-528 Warszawa, Poland
Department and Clinic of Internal Medicine, Agricultural University, Grochowska 272, 03-849 Warszawa, Poland
Publication date: 1999-01-02
J. Anim. Feed Sci. 1999;8(1):95–105
Forty eight rats divided into 6 groups were fed semi-purified mixtures with different kind of fats (6%); C - control group, T - tallow, L - lard, RO - rape seed oil, LO - linseed oil, FO - fish oil.The percentage content of fatty acids in the serum and in the longissimus dorsi muscle (l.d.m.) of rats was measured. The dietary fat did not influence the percentage content of saturated fatty acids (SFA) in the rat's serum. Increasing the percentage content of polyunsaturated fatty acids (PUFA) in serum and muscle at the expense of monounsaturated fatty acids (MUFA) was observed in rats receiving linseed oil. Feeding linseed oil and fish oil increased the content of PUFAn-3 in serum and muscle. In contrast with serum, in the l.d.m. of rats a negative correlation between PUFAn-3 and n-6 was not found.