Different fat-to-fiber ratios by changing wheat inclusion level impact energy metabolism and microbial structure of broilers

IntroductionDietary nutrient content is crucial for energy metabolism and development of gut microbiota. Herein, this study aimed to explore the effects of fat-to-fiber ratios on nutrient transporter, energy metabolism and gut microbiota when ingredients composition was altered.MethodsA total of 240 as-hatched broiler chickens were randomly assigned into three groups including low fat-high dietary fiber (LF-HD), medium fat-medium dietary fiber (MF-MD) and high fat-low dietary fiber (HF-LD), with diets being iso-protein, and broilers were offered the same commercial diets from 21 to 42 d. The data were analyzed using one-way ANOVA of SPSS.Results and DiscussionResults showed that HF-LD diet significantly increased glucose content and decreased triglyceride in serum of broilers (p