Effects of dietary lipid levels on growth performance, plasma biochemistry, lipid metabolism and intestinal microbiota of juvenile golden pompano ( Trachinotus ovatus )

2021 ◽  
Author(s):  
Pengwei Xun ◽  
Heizhao Lin ◽  
Ruixuan Wang ◽  
Wei Yu ◽  
Chuanpeng Zhou ◽  
...  
Keyword(s):  
Lipid Metabolism ◽  
Growth Performance ◽  
Intestinal Microbiota ◽  
Dietary Lipid ◽  
Lipid Levels ◽  
Plasma Biochemistry ◽  
Trachinotus Ovatus ◽  
Golden Pompano

scholarly journals Dietary lipid and n-3 long-chain PUFA levels impact growth performance and lipid metabolism of juvenile mud crab, Scylla paramamosain

2020 ◽  
pp. 1-15 ◽  
Author(s):  
Xuexi Wang ◽  
Min Jin ◽  
Xin Cheng ◽  
Jiaxiang Luo ◽  
Lefei Jiao ◽  
...  
Keyword(s):  
Fatty Acid ◽  
Lipid Metabolism ◽  
Weight Gain ◽  
Growth Performance ◽  
Lipid Level ◽  
Dietary Lipid ◽  
Scylla Paramamosain ◽  
Mud Crab ◽  
Lipid Levels ◽  
Expression Levels

Abstract An 8-week feeding trial was conducted to evaluate the effects of dietary n-3 LC-PUFA levels on growth performance, tissue fatty acid profiles and relative expression of genes involved in the lipid metabolism of mud crab (Scylla paramamosain). Ten isonitrogenous diets were formulated to contain five n-3 LC-PUFA levels at 7 and 12 % dietary lipid levels. The highest weight gain and specific growth rate were observed in crabs fed the diets with 19·8 and 13·2 mg/g n-3 LC-PUFA at 7 and 12 % lipid, respectively. Moisture and lipid contents in hepatopancreas and muscle were significantly influenced by dietary n-3 LC-PUFA at the two lipid levels. The DHA, EPA, n-3 LC-PUFA contents and n-3:n-6 PUFA ratio in hepatopancreas and muscle significantly increased as dietary n-3 LC-PUFA levels increased at both lipid levels. The expression levels of Δ-6 fatty acyl desaturase and acyl-CoA oxidase in hepatopancreas increased significantly, and expression levels of fatty acid synthase, carnitine palmitoyltransferase I and hormone-sensitive TAG lipase were down-regulated, with increased dietary n-3 LC-PUFA regardless of lipid level. Based on weight gain, n-3 LC-PUFA requirements of S. paramamosain were estimated to be 20·1 and 12·7 mg/g of diet at 7 and 12 % dietary lipid, respectively. Overall, dietary lipid level influenced lipid metabolism, and purified, high-lipid diets rich in palmitic acid reduced the n-3 LC-PUFA requirement of juvenile mud crab.

Effects of dietary lipid levels on survival, growth performance, and antioxidant ability of the early juvenile Scylla paramamosain

Aquaculture ◽  
2020 ◽  
Vol 528 ◽  
pp. 735559
Author(s):  
Hanying Xu ◽  
Tao Han ◽  
Xinyu Li ◽  
Jiteng Wang ◽  
Puqiang Zheng ◽  
...  
Keyword(s):  
Growth Performance ◽  
Dietary Lipid ◽  
Scylla Paramamosain ◽  
Antioxidant Ability ◽  
Lipid Levels ◽  
Early Juvenile
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