Taugbøl O, Saarem K
Department of Biochemistry, Physiology and Nutrition, Norwegian College of Veterinary Medicine, Oslo.
Acta Vet Scand. 1995;36(1):93-101. doi: 10.1186/BF03547706.
In pigs fed a standard pig mash the contents of polyunsaturated fatty acids (PUFAs) of both the n-6 and n-3 series were significantly higher in the dark red mm adductores compared to the light coloured m longissimus lumborum. Perirenal fat had a higher concentration of saturated fatty acids (14:0, 16:0, 18:0) than backfat, and a lower concentration of monounsaturated fatty acids, such as 16:1n-7 and 18:1n-9. Daily supplementation of 50 ml cod liver oil, rich in n-3 PUFAs, during the fourth and third week before slaughter led to a 1.4 to 1.7 times increase in the contents of n-3 PUFAs in muscles and fat depots. There was no difference between the incorporation of n-3 PUFAs in dark and light muscles. Perirenal fat contained more 20:5n-3 (EPA) and 22:6n-3 (DHA), but less 20:1n-9 (eicosenoic acid) than the backfat, after cod liver oil supplementation rich in these 3 fatty acids. Supplementation of cod liver oil reduced the n-6/n-3 fatty acid ratio in all anatomical locations examined.
在饲喂标准猪饲料的猪中，与浅色的腰大肌相比，暗红色的内收肌中n-6和n-3系列多不饱和脂肪酸（PUFA）的含量显著更高。肾周脂肪中饱和脂肪酸（14:0、16:0、18:0）的浓度高于背膘，而单不饱和脂肪酸如16:1n-7和18:1n-9的浓度则低于背膘。在屠宰前第三周和第四周每天补充50毫升富含n-3多不饱和脂肪酸的鳕鱼肝油，可使肌肉和脂肪库中n-3多不饱和脂肪酸的含量增加1.4至1.7倍。深色和浅色肌肉中n-3多不饱和脂肪酸的掺入没有差异。在补充富含这三种脂肪酸的鳕鱼肝油后，肾周脂肪比背膘含有更多的20:5n-3（二十碳五烯酸，EPA）和22:6n-3（二十二碳六烯酸，DHA），但20:1n-9（二十碳烯酸）的含量更少。补充鳕鱼肝油降低了所有检测解剖部位的n-6/n-3脂肪酸比值。
