Efficacy of lysophospholipids on growth performance, carcase, intestinal morphology, microbial population and nutrient digestibility in broiler chickens fed different dietary oil sources

An experiment was conducted to investigate the growth performance, microbial population, intestinal morphology and nutrient digestibility of broiler chickens fed diets supplemented with lysophospholipids (LPL) in combination with soybean (SO), flaxseed (FSO) or sesame seed (SSO) oil sources. A completely randomised design with a 2 × 3 factorial arrangement including two levels of LPL (0 or 0.1% Lipidol) and three different oil sources was used. A total of three hundred one-day-old broiler chicks were randomly allocated into six treatments of five pens with ten birds per pen. The results showed that body weight gain (BWG) and feed conversion ratio (FCR) significantly increased in broilers fed dietary LPL and SSO (p < .05). There was a significant interaction between the oil sources and LPL supplementation on 10 days of age (p < .05). Inclusion of SSO to the diets increased villus width and villus surface area compared with SO diet (p < .05). Broilers fed LPL supplemented diets had lower crypt depth, while villus length to crypt depth ratio was greater in broilers fed LPL supplementation (p < .05). Lactobacillus population increased in broilers fed LPL supplemented diet compared to those without dietary LPL (p < .05). Inclusion of LPL increased ileal digestibility of dry matter, crude protein and ether extract (p < .05). Broiler fed SSO diets had greater digestibility coefficient for ether extract compared with SO group (p < .05). In conclusion, dietary LPL supplementation and SSO increased growth performance, intestinal morphology, microbiota activity and nutrient digestibility in broiler chickens.HIGHLIGHTS Lysophospholipids (LPL) supplementation increased growth performance, intestinal morphology, and microbiota activity in broiler chickens. Supplemental LPL enhanced ileal nutrient digestibility coefficients in broiler chickens. Dietary sesame seed oil (SSO) increased growth performance, ether extract digestibility and intestinal morphometric variables in broiler chickens compared with soybean oil (SO).