Effects of Dietary Niacin on Growth Performance, Serum Biochemistry, Antioxidant Ability of Liver, Intestinal Digestion, and Absorption in Juvenile Golden Pompano
文献类型： 外文期刊
作者： Xun, P. 1 ; Lin, H. 1 ; Wang, R. 1 ; Huang, Z. 1 ; Zhou, C. 1 ; Yu, W. 1 ; Huang, Q. 1 ; Yang, Y. 1 ; Huang, X. 1 ; Tan, L. 1 ;
作者机构： 1.Minist Agr, Key Lab South China Sea Fishery Resources Exploit, Guangzhou 510300, Guangdong, Peoples R China
2.Chinese Acad Fishery Sci, South China Sea Fisheries Res Inst, Guangzhou 510300, Guangdong, Peoples R China
3.Shanghai Ocean Univ, Coll Fisheries & Life Sci, Shanghai 201506, Peoples R China
4.Shenzhen Base South China Sea Fisheries Res Inst, Shenzhen 518121, Peoples R China
关键词： Trachinotus ovatus; growth performance; serum biochemistry; hepatic antioxidative ability; intestinal digestion and absorption; niacin requirement
期刊名称：ISRAELI JOURNAL OF AQUACULTURE-BAMIDGEH （ 影响因子：0.287； 五年影响因子：0.593 ）
ISSN： 0792-156X
年卷期： 2019 年 71 卷
页码：
收录情况： SCI
摘要： Six groups of experimental diets containing different levels (14.9, 22.4, 28.6, 37.9, 42.0 and 77.5 mg/kg) of niacin were formulated. Juvenile golden pompano (initial body weight:7.82 +/- 0.07 g) were fed in cages for eight weeks. Results showed that moderate niacin in the diet significantly increased (P<0.05) weight gain rate (WGR), specific growth rate (SGR), and feed efficiency (FER). Dietary niacin levels increased the protein content in whole fish and muscle (P < 0.05). The content of serum high density lipoprotein cholesterol (HDL-C) and total cholesterol (TCHO) increased significantly and triglyceride (TG) content decreased significantly (P<0.05). C3 and C4 content in serum, and activities of lysozyme (LZM), and alkaline phosphatase (ALP) increased significantly (P<0.05). Dietary niacin levels significantly increased (P<0. 05) the catalase (CAT), alkaline phosphatase (ALP), and total antioxidant capacity (T-AOC) of the liver when niacin content was more than 28.6 mg/kg. Dietary niacin levels also improved intestinal digestion and absorption by increasing glutamyl transferase (y-GT)activity. Quadratic regression analysis on WGR indicated that the optimum dietary niacin level for optimal growth of juvenile golden pompano was 29.85 mg/kg.
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