Abstract
The aim of our study was to investigate the impact of carnosic acid (CA), selenate (VISe) or selenized yeast (YSe) on concentrations of fatty acids (FA), tocopherols, cholesterol and malondialdehyde in the periintestinal fat (PIF) and muscles of lambs. Male lambs were fed the control diet containing rapeseed (RO) and fish (FO) oils, the CA diet containing RO, FO and CA, the YSe-CA diet with RO, FO, CA and YSe, and the VISe-CA diet with RO, FO, CA and VISe. The experimental diets with CA, irrespective of the presence of YSe or VISe, decreased sums of saturated FA (SFA) and the thrombogenic SFA in the PIF compared to the control. The experimental diets increased the Δ9-desaturation capacity in the PIF compared to the control. The experimental diets with YSe or VISe reduced sums of long-chain polyunsaturated FA in the PIF compared to the control and CA diets. The PIF and muscles of lambs fed the VISe-CA diet were characterised by the highest hypocholesterolemic/hypercholesterolemic-FA ratio, and lower modified atherogenic index compared to the control.
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