Abstract
Background: The production and secretion of lipase and bile salt are restricted particularly in young chicks, resulting in a feeble metabolism of lipids as well as oils. Addition of exogenous lysolecithin in the poultry rations may be incorporated as better option to control such constraint. Methods: In total, 120 day-old Hubbard broiler chickens assigned at random to four nutritional treatments for period of 42d trial. The broiler’s rations (0-28d and 29-42d) were added with 0, 0.050, 0.075 and 0.10% exogenous emulsifier with1.0% soybean oil. The data relating performance, carcass traits, fat digestibility and blood fat profiles in chickens was obtained during experiment. Results: During days 1-21 and 1-42, chickens fed diets with high levels (0.075 or 0.100%) of emulsifier with soybean oil resulted significantly (p<0.05) better weight gain and feed: gain ratio than without emulsifier. The broilers on emulsifier diets fed substantially (p<0.05) less feed intake and considerable (p<0.05) decreased feed: gain ratio as compared to without emulsifier at 1-21d. The relative weight of the breast or leg meat yield, and liver significantly (p<0.05) increased in broilers given exogenous emulsifier rations. On day 21 and 42, the digestibility of fat in birds offered with emulsifier diets were substantially (p<0.05) increased than that of control group. Lipid profile was not influenced by exogenous emulsifier supplementation in broiler’s diet. Conclusion: This study envisaged that exogenous emulsifier supplementation (0.05 to 0.10%) in broiler’s diet improved the performance, meat yield and fat digestibility without affecting on cholesterol profile in broilers.

Faizan Mahmood, Haq Nawaz, Sohail Hassan Khan, Muhammad Yousaf, Javid Iqbal. (2022) Impact of supplemental exogenous lysolecithin on performance, fat digestibility, and lipid metabolites responses in broilers, Advancements in Life Sciences, Volume 9, Issue 1.
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