Article
Fisheries
Yan Huang, Jianming Xu, Zhengyu Sheng, Ruitao Xie, Haitao Zhang, Naisong Chen, Songlin Li
Summary: This study investigated the effects of dietary phospholipids on growth performance, fatty acid composition, and lipid metabolism in juvenile hybrid grouper. The results showed that dietary phospholipids had no significant influence on the growth performance of the grouper. However, it increased the lipid content in the fish body, liver, and muscle, and promoted hepatic triglyceride accumulation. The study also found that high dietary phospholipid inclusion decreased the expression of fatty acids oxidation related genes.
AQUACULTURE REPORTS
(2022)
Article
Multidisciplinary Sciences
Xiaobo Yan, Junjiang Yang, Xiaohui Dong, Beiping Tan, Shuang Zhang, Shuyan Chi, Qihui Yang, Hongyu Liu, Yuanzhi Yang
Summary: The study aimed to explore the optimum protein requirement of juvenile grouper. Results showed that as the protein level increased, there were changes in growth, feed utilization, and nutrient metabolism. The optimum protein level for juvenile grouper was found to be 521.84 g/kg.
SCIENTIFIC REPORTS
(2021)
Article
Biochemistry & Molecular Biology
Misbah Irm, Wei Mu, Xiaoyi Wu, Lina Geng, Xiao Wang, Bo Ye, Lei Ma, Zhiyu Zhou
Summary: The study determined the optimum dietary methionine requirement for juvenile humpback grouper to be 1.07%, with lower survival, weight gain, and protein efficiency ratio observed in groups with methionine deficiency. The expression of genes related to growth and metabolism was affected by varying levels of dietary methionine supplementation.
Article
Fisheries
Tao Li, Xiaobo Yan, Xiaohui Dong, Simiao Pan, Beiping Tan, Shuang Zhang, Xiangxiang Suo, Weibin Huang, Menglong Zhou, Yuanzhi Yang
Summary: This study evaluated the effect of dietary choline levels on growth performance, liver histology, nonspecific immunity, and gene expression in hybrid grouper. The results showed that choline levels did not significantly affect body weight, feed conversion rate, and certain indexes, but did affect liver weight, survival rate, and enzyme activity. Choline levels also influenced immune-related factors and gene expression, improving cell structure and reducing oxidative stress. Overall, choline can enhance the immunity of hybrid grouper fed with high-lipid diets.
FISH & SHELLFISH IMMUNOLOGY
(2023)
Article
Fisheries
Yan Huang, Jianming Xu, Zhengyu Sheng, Naisong Chen, Songlin Li
Summary: Increasing dietary phospholipids significantly improves growth performance of grouper larvae, promotes hepatic lipid deposition, and regulates the synthesis and hydrolysis of triglyceride. In addition, higher phospholipid content in the diet enhances antioxidant capacity.
Article
Fisheries
Chao Liang, Lefei Jiao, Qicun Zhou
Summary: This study conducted an 8-week feeding experiment to evaluate the effects of dietary choline supplementation on the growth, antioxidant function, and lipid metabolism in juvenile largemouth bass fed a high-fat diet. The results showed that appropriate choline supplementation could alleviate the negative impacts of high fat diet, including growth suppression, oxidative damage, and lipid accumulation. The recommended choline dosage for largemouth bass compound feed was found to be 6.58 g/kg.
AQUACULTURE REPORTS
(2023)
Article
Fisheries
Haoji Guo, Cuiying Chen, Xin Yan, Yuanyou Li, Xiaobo Wen, Cuihong You, Oscar Monroig, Douglas R. Tocher, Shuqi Wang
Summary: This study found that dietary lipid sources significantly influenced the growth performance, antioxidant capacity, and lipid deposition in juvenile golden pompano. Low levels of 18:1n-9, high levels of n-3 long-chain polyunsaturated fatty acids, and an appropriate ratio of ALA/LNA (18,2n-6) were found to reduce lipid deposition in pompano tissues, especially in the liver.
Article
Fisheries
Bo Shi, Xiaoying Hu, Min Jin, Minghong Xia, Mingming Zhao, Lefei Jiao, Peng Sun, Qicun Zhou
Summary: The dietary choline levels significantly influenced the growth performance and lipid metabolites of juvenile Pacific white shrimp, but had no significant effect on proximate composition.
AQUACULTURE NUTRITION
(2021)
Article
Fisheries
Ma Lei, Wu Xiaoyi, Ye Bo, Geng Lina, Zhou Zhiyu, Wang Xiao, Mu Wei
Summary: The optimum threonine requirement for maximum growth of juvenile hybrid grouper was estimated to be 11.48 g/kg of dry matter. The mRNA expression of hepatic growth hormone receptor 1 was higher in fish fed diets with 11.5 and 13.7 g/kg dietary threonine. Fish fed diets with 5.4 g/kg threonine had the lowest whole-body protein contents and expression of hepatic target of rapamycin and ribosomal protein S6 kinase 1.
AQUACULTURE NUTRITION
(2021)
Article
Fisheries
Zhongmin Sui, Xuan Wang, Yongkai Sun, Huihui Zhou, Chengdong Liu, Kangsen Mai, Gen He
Summary: A 10-week feeding trial was conducted to determine the optimal dietary methionine requirement of sub-adult turbot. The results showed that fish growth significantly increased with increasing dietary methionine levels up to 1.82% and then plateaued. Adequate dietary methionine improved protein and lipid levels in the whole body and liver. It also increased the content of methionine and other amino acids in the hepatic free amino acid pool and affected the expression of genes involved in lipid metabolism.
Article
Nutrition & Dietetics
Ze Fan, Jinnan Li, Yuanyuan Zhang, Di Wu, Xianhu Zheng, Chang'an Wang, Liansheng Wang
Summary: The study showed that dietary lipid levels have a significant impact on the growth performance and lipid metabolism of large-sized common carp. Moderate increase in lipid levels can promote growth and lipid deposition, while excessive intake may inhibit growth and exacerbate lipid decomposition in the hepatopancreas. Optimal dietary lipid levels for growth performance and feed utilization of large-sized common carp were found to be 59.5 and 70.4 g/kg based on weight gain rate and feed conversion rate.
FRONTIERS IN NUTRITION
(2021)
Article
Environmental Sciences
Yujie Gao, Yifan Yao, Jie Huang, Yuejia Sun, Qingjun Wu, Dingqian Guo, Shengpeng Wang
Summary: This study aimed to evaluate the effects of dietary bile acids on growth performance, feed utilization, body composition, digestive enzyme activity, and related gene expression in juvenile leopard coral grouper. Results showed that feeding 0.3% bile acids significantly improved weight gain, specific growth rate, feed conversion ratio, and feed intake. Furthermore, dietary bile acids decreased lipid deposition, increased intestinal trypsin and lipase activities, and up-regulated the expression of fatty acid binding protein 2 while down-regulating cholesterol transport related genes.
FRONTIERS IN MARINE SCIENCE
(2023)
Article
Environmental Sciences
Jia Xu, Xinzhou Yao, Xiaoyue Li, Shiwei Xie, Shuyan Chi, Shuang Zhang, Junming Cao, Beiping Tan
Summary: Little is known about the association between bile acids (BAs) and lipid deposition and metabolism in fish. In this study, a model of fatty-degenerated hepatocytes in pearl gentian grouper was established to explore the effects and mechanism of BAs on lipid metabolism. Results showed that co-incubation with BAs reduced triglyceride (TG) content and increased the expression of PPARA, FXR, and TGR5 proteins. Activation of FXR and/or TGR5 pathways repressed lipogenesis, enhanced lipolysis, and regulated transcriptional factors, leading to a reduction in lipid accumulation in vitro.
FRONTIERS IN MARINE SCIENCE
(2022)
Article
Fisheries
Jia Xu, Guilun He, Liutong Chen, Shiwei Xie, Shuyan Chi, Shuang Zhang, Junming Cao, Beiping Tan
Summary: This study investigated the effect of different drugs on lipid metabolism in hybrid grouper. The results showed that activating FXR can reduce hepatic lipid accumulation, while inhibiting FXR or TGR5 can increase lipogenesis.
AQUACULTURE REPORTS
(2022)
Article
Environmental Sciences
Xiangxiang Suo, Xiaobo Yan, Beiping Tan, Simiao Pan, Tao Li, Hao Liu, Weibin Huang, Shuang Zhang, Yuanzhi Yang, Xiaohui Dong
Summary: This study investigated the effect of lipid levels on growth, body composition, lipid metabolism enzymes activity, and related genes expression in hybrid grouper. The results showed that a high-lipid diet promoted growth but led to lipid accumulation and affected lipid metabolism. This study provides valuable information for the formulation of diets for hybrid grouper.
FRONTIERS IN MARINE SCIENCE
(2022)
