Open AccessDietary carnosic acid and seleno-compounds change concentrations of fatty acids, cholesterol, tocopherols and malondialdehyde in fat and heart of lambs
Author(s) -
Małgorzata Białek,
M. Czauderna,
Kamil Zaworski,
Katarzyna Krajewska
Publication year - 2021
Publication title -
animal nutrition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.356
H-Index - 28
eISSN - 2405-6545
pISSN - 2405-6383
DOI - 10.1016/j.aninu.2020.11.010
Subject(s) - malondialdehyde , carnosic acid , polyunsaturated fatty acid , food science , chemistry , fish oil , conjugated linoleic acid , lipidology , docosahexaenoic acid , fatty acid , biology , linoleic acid , biochemistry , antioxidant , fish <actinopterygii> , fishery
The aim of the current study was to evaluate the impact of carnosic acid (CA), selenised yeast ( Y Se) and selenate ( VI Se) supplemented to diets, including fish oil (FO) and rapeseed oil (RO), on the content of fatty acids, total cholesterol (TCh), tocopherols and malondialdehyde in the fat located between the thigh muscles and the heart in lambs. Twenty-four male Corriedale lambs were divided into 4 groups of 6 animals. Animals were fed a diet with FO and RO (the control diet) or experimental diets containing RO, FO and CA with/without Se (as Y Se or VI Se). The experimental diets without/with Y Se or VI Se changed concentrations of fatty acids in the fat and heart compared to the control. All experimental diets increased the levels of c11c14C20:2, c5c8c11c14C20:4, c5c8c11c14c17C20:5 and the sums of long-chain polyunsaturated fatty acids (LPUFA) and conjugated linoleic acid isomers in the fat compared to the control. The experimental diet containing Y Se or VI Se increased the content of Se, TCh, c11c14C20:2, c8c11c14C20:3, c5c8c11c14C20:4, c5c8c11c14c17C20:5, c7c10c13c16c19C22:5, c4c7c10c13c16c19C22:6 and the concentration sum of n-3LPUFA, n-6LPUFA and tocopherols in the heart in comparison with the control diet and the diet containing only CA. Experimental diets reduced the concentration of malondialdehyde in the fat and heart in comparison with the control diet. Our dietary intervention has great potential for future practical and commercial implementations.