The Effects of Conjugated Linoleic Acids or an α-Glucosidase Inhibitor on Tissue Lipid Concentrations and Fatty Acid Composition of Broiler Chicks Fed a Low-Protein Diet

The effects of dietary conjugated linoleic acid (CLA) and an α-glucosidase inhibitor—Bay g 5421— on tissue lipid concentrations and fatty acid composition were investigated in male broiler chicks fed a low-protein diet. The trial comprised six isoenergetic broiler diets. One diet (high-protein diet) was used as a control diet and contained 230 g crude protein per kilogram. The other five diets were low-protein diets (180 g crude protein/kg) without additional supplement, or supplemented with 20 or 40 g/kg of a CLA-enriched oil, or supplemented with 50 or 100 mg of Bay g 5421/kg. Broilers fed the lowprotein diets had higher concentrations of triglycerides and cholesterol in the liver than broilers fed the highprotein diet. Broilers fed low-protein diets supplemented with CLA had a higher cholesterol concentration in plasma, lower hepatic triglyceride concentrations, higher (