水生生物学报2017，Vol.41Issue(1)：114-120,7.DOI:10.7541/2017.15
壳聚糖对俄罗斯鲟幼鱼生长性能及免疫功能的影响
EFFECTS OF CHITOSAN ON GROWTH PERFORMANCE AND IMMUNITY OF JUVENILE RUSSIAN STURGEON (ACIPENSERGUELDENSTAEDTI)
摘要
Abstract
A 50-day feeding trial was conducted to investigate the effects of dietary chitosan supplement on growth per-formance and immunity of juvenile Russian sturgeon (initial body weight of 12 g). In total, 540 fish were assigned to six groups (30 fish per replicate, triplicate experiments). The fish were fed basal experimental diets supplemented with different levels of chitosan:0 (control group), 1.25, 2.5, 5, 7.5 and 10 g/kg respectively. The results showed that the weight growth rate (WGR) and specific growth rate (SGR) in 2.5 and 5 g/kg groups were significantly higher than that in control group (P<0.05), whereas feed coefficient (FC) decreased significantly (P<0.05), but the growth in 10 g/kg group was inhibited. The superoxide dismutase (SOD) activity in 1.25 and 2.5 g/kg were significantly higher than that in control group (P<0.05), while the SOD activity in the other three groups were significantly lower than that in control group (P<0.05). Lysozyme (LZM) activity in serum of 2.5 and 5 g/kg groups increased significantly (P<0.05), while 7.5 and 10 g/kg groups were significantly lower than that in control group (P<0.05). The alkanlin phoshpatase (AKP) activity, acid phosphatase (ACP) activity and content of complement C3 in 1.25, 2.5, 5 g/kg groups were significantly higher than those in control group (P<0.05). No significant difference was observed on serum IgM in all supplementa-tion group (P>0.05). These results indicated that dietary chitosan supplementation can improve the growth perfor-mance and immunity in juvenile Russian sturgeon. Based on the WGR, SGR and non-specific immunity, the chitosan supplement in diets was suggested to be 2.5 g/kg for juvenile Russian sturgeon.关键词
俄罗斯鲟/壳聚糖/生长/免疫Key words
Russian sturgeon (Acipenser gueldenstaedti)/Chitosan/Growth/Immunity分类
农业科技引用本文复制引用
肖艳翼,夏永涛,刘腾飞,胡利静,杨移斌,胡鲲,杨先乐..壳聚糖对俄罗斯鲟幼鱼生长性能及免疫功能的影响[J].水生生物学报,2017,41(1):114-120,7.基金项目
863项目鱼虾用疫苗与药物研究开发(2011AA10A216) （2011AA10A216）
上海高校知识服务平台建设项目(ZF1206) （ZF1206）
国家级星火计划项目(2014GA700003) （2014GA700003）
药物代谢行业专项(201203085)资助[Supported by the Vaccine and Drug Research for Fish&Shrimp (863 Program)(2011AA10A216) （201203085）
Knowledge Service Platform Project in Shanghai Universities (ZF1206) （ZF1206）
National Spark Plan Project (2014GA700003) （2014GA700003）
Industry Specific Drug Metabolism (201203085) （201203085）
