Effect of dietary beta-1,3-glucan on the immune response of Litopenaeus vannamei exposed to nitrite-N
文献类型: 外文期刊
作者: Zhao, H-X 1 ; Cao, J-M 1 ; Wang, A-L 2 ; Du, Z-Y 3 ; Huang, Y-H 1 ; Tian, J-X 2 ; Li, G-L 1 ; Lan, H-B 1 ;
作者机构: 1.Guangdong Acad Agr Sci, Inst Anim Sci, Guangzhou 510640, Guangdong, Peoples R China
2.S China Normal Univ, Key Lab Ecol & Environm Sci Guangdong Higher Educ, Guangdong Prov Key Lab Healthy & Safe Aquaculture, Coll Life Sci, Guangzhou 510631, Guangdong, Peoples R China
3.Natl Inst Nutr & Seafood Res, Bergen, Norway
关键词: b-1;3-glucan;immune response;Litopenaeus vannamei;nitrite-N stress
期刊名称:AQUACULTURE NUTRITION ( 影响因子:3.497; 五年影响因子:3.78 )
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收录情况: SCI
摘要: beta-1,3-Glucan with 1.0 g kg-1 was supplemented to a basal diet [control (C)] with different feeding schedules: permanently beta-1,3-glucan diet (BG) and 14 days BG14 days control diet (C + BG). Growth and immunological responses [respiratory burst (RB), superoxide dismutase (SOD), catalase (CAT), lysozyme and total protein] in haemolymph, hepatopancreas and muscle of Litopenaeus vannamei were recorded after 84-day feeding and exposure to nitrite-N (20 mg L-1) for 120 h. beta-1,3-Glucan administration did not affect growth performance. However, as compared with control, elevated CAT and lysozyme activities were seen in haemolymph of both BG groups, while significantly higher activities of SOD, lysozyme and RB in hepatopancreas, and higher activities of CAT and lysozyme in muscle were only seen in C + BG group. After nitrite-N stress, significantly higher haemolymph protein, and hepatopancreas activities of lysozyme and RB were observed in both BG groups, but significantly higher activities of haemolymph SOD was only seen in C + BG group. The mortality in groups BG and C + BG was significantly lower than that in group C, but C + BG group showed a trend of higher nitrite-N resistance compared with BG group. Considering dietary cost and immunostimulatory effects, the feeding schedule with 14 days BG14 days control diet is more recommended.
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