Effects of dietary tributyrin on growth performance, body composition, serum biochemical indexes and lipid metabolism‐related genes expression of juvenile large yellow croaker ( Larimichthys crocea ) fed with high level soybean oil diets

作者：Ning Xu, Tao Ding, Yongtao Liu, Weiqiang Zheng, Qiangde Liu, Zhaoyang Yin, Xiaojun Xiang, Dan Xu, Kangsen Mai, Qinghui Ai · 发表于：Aquaculture Nutrition · 年份：2020 · DOI：10.1111/anu.13192 · 被引用次数：36 · 研究领域：Aquaculture Nutrition and Growth、Aquaculture disease management and microbiota、Aquatic life and conservation

A 10-week feed trial was conducted to investigate the effects of tributyrin (TB) supplementation on growth performance, body composition, serum biochemical indexes and lipid metabolism-related genes expression of juvenile large yellow croaker (Larimichthys crocea) fed diets containing high level of soybean oil. In the negative control group, 80 g/kg fish oil was used as the only lipid source (FO group), while in the positive control group, 20 g/kg fish oil and 60 g/kg soybean oil were used as the lipid source (FS group). Based on the positive control diet, grade levels of 1, 2, 4 and 8 g/kg tributyrin were added, respectively. Results showed that compared with the negative control group, high level of dietary soybean oil significantly decreased the growth performance and increased the liver lipids deposition of juvenile large yellow croaker. Compared with the positive control group, supplementation of 2 g/kg tributyrin significantly increased the growth performance and reduced the liver triglycerides and serum cholesterol content of juvenile large yellow croaker. Supplementation of 4 g/kg tributyrin significantly decreased liver triglycerides and serum cholesterol and free fatty acids content of juvenile large yellow croaker. Moreover, supplementation of 2 and 4 g/kg tributyrin significantly decreased the expression of acc, srebp-1, and pparγ and significantly increased the expression of cpt1. Results of the present study indicated that moderate tributyrin supplementation in ...