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This study aimed to evaluate the effects of dietary supplementation of lysolecithin emulsifier on growth performance, nutrient digestibility, and blood lipid profiles in growing broiler chickens. In total, 1,020 1-day-old male Ross 308 broiler chickens with an average initial live weight of 43±1.2 g were randomly allotted to five dietary treatments for a 35 d experiment. The treatments included: (1) NC, negative control (metabolizable energy (ME)=3,100 kcal/kg for phase 1 and phase 2), (2) PC, positive control (ME=3,200 kcal/kg), (3) T1, NC+0.03% lysolecithin, (4) T2, NC+0.06% lysolecithin, and (5) T3, NC+0.09% lysolecithin. During days 1-35, the feed conversion ratios (FCR) of broiler chickens fed with T2 and T3 diets were lower than those of broiler chickens fed with NC diet ( P &lt;0.05). On day 35, the total tract nutrient retention (TTNR) of gross energy and ether extract of broiler chickens fed with PC and T3 diets was higher than those fed with NC diet ( P &lt;0.05). However, serum total cholesterol, triglyceride, and free fatty acid levels were not influenced by lysolecithin supplementation. In conclusion, lysolecithin supplementation improved FCR and TTNR of energy and ether extract when broiler chickens were offered a reduced energy diet.

journal of poultry science

Effects of Exogenous Lysolecithin Emulsifier Supplementation on the Growth Performance, Nutrient Digestibility, and Blood Lipid Profiles of Broiler Chickens