| 壳聚糖对虹鳟(Oncorhynchus mykiss)幼鱼生长性能、体组成及非特异性免疫的影响 |
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| 引用本文： | 蒋锦坤,王际英,张利民,柳旭东,冯德智,姜柯君,张德瑞.壳聚糖对虹鳟(Oncorhynchus mykiss)幼鱼生长性能、体组成及非特异性免疫的影响[J].海洋与湖沼,2012,43(4):729-734. |
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| 作者姓名： | 蒋锦坤 王际英 张利民 柳旭东 冯德智 姜柯君 张德瑞 |
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| 作者单位： | 1. 上海海洋大学水产与生命学院,上海201306 山东省海洋水产研究所,烟台264006
2. 山东省海洋水产研究所,烟台,264006 |
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| 基金项目： | 国家科技部农转资金项目;03EFN213700155号，山东省科技发展计划项目;2010-2013，山东省水生动物营养与饲料泰山学者岗位(HYK201004)经
费资助 |
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| 摘 要： | 用壳聚糖添加量为0.00%(D0)、0.25%(D1)、0.50%(D2)、1.00%(D3)和2.00%(D4)的实验饲料投喂虹鳟幼鱼50d,研究其对虹鳟幼鱼生长性能、体组成及非特异性免疫的影响。结果显示,各实验组增重率(WGR)、特定生长率(SGR)显著高于对照组(P<0.05),饲料系数(FCR)、脏体比(VSI)呈显著降低趋势(P<0.05),而肝体比(HSI)、脾体比(SSI)、肥满度(CF)及存活率(SR)无明显差异(P>0.05)。全鱼、肌肉及肝脏粗脂肪含量显著降低(P<0.05)。D3组和D4组碱性磷酸酶(ALP)活性显著低于其它各组(P<0.05);酸性磷酸酶(ACP)活性显著降低(P<0.05),溶菌酶(LZM)活性则显著升高(P<0.05);D4组总抗氧化能力(T-AOC)显著高于对照组及D1组(P<0.05);超氧化物歧化酶(SOD)活力差异不显著(P>0.05)。在本实验条件下,饲料中添加壳聚糖可显著提高虹鳟幼鱼生长性能、增强非特异性免疫能力,以增重率及非特异性免疫为综合评价指标,虹鳟饲料中壳聚糖的适宜添加量为0.50%。
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| 关 键 词： | 壳聚糖 虹鳟 生长性能 体组成 非特异性免疫 |
| 收稿时间： | 2011/10/23 0:00:00 |
| 修稿时间： | 2011/12/26 0:00:00 |
EFFECTS OF DIETARY CHITOSAN ON GROWTH PERFORMANCE, BODY COMPOSITION AND NON-SPECIFIC IMMUNITY OF JUVENILE ONCORHYNCHUS MYKISS |
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| JIANG Jin-Kun,WANG Ji-Ying,ZHANG Li-Min,LIU Xu-Dong,FENG De-Zhi,JIANG Ke-Jun and ZHANG De-Rui.EFFECTS OF DIETARY CHITOSAN ON GROWTH PERFORMANCE, BODY COMPOSITION AND NON-SPECIFIC IMMUNITY OF JUVENILE ONCORHYNCHUS MYKISS[J].Oceanologia Et Limnologia Sinica,2012,43(4):729-734. |
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| Authors: | JIANG Jin-Kun WANG Ji-Ying ZHANG Li-Min LIU Xu-Dong FENG De-Zhi JIANG Ke-Jun and ZHANG De-Rui |
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| Institution: | College of Fisheries and Life Science, Shanghai Ocean University; Marine Fisheries Research Institute of Shandong Province;Marine Fisheries Research Institute of Shandong Province;Marine Fisheries Research Institute of Shandong Province;Marine Fisheries Research Institute of Shandong Province;College of Fisheries and Life Science, Shanghai Ocean University; Marine Fisheries Research Institute of Shandong Province;College of Fisheries and Life Science, Shanghai Ocean University; Marine Fisheries Research Institute of Shandong Province;College of Fisheries and Life Science, Shanghai Ocean University; Marine Fisheries Research Institute of Shandong Province |
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| Abstract: | Rainbow trout was cultured widespread all around the world, but the healthy of rainbow trout was generally inhibited by high-density culture. A 50-d feeding trial was carried out to investigate the effects of dietary chitosan on growth performance, body composition and non-specific immunity of juvenile Oncorhynchus mykiss (98.26±0.25)g]. Five isonitrogenous and isoenergetic diets were formulated by adding 0% (D0, control group), 0.25% (D1), 0.50% (D2), 1.00% (D3) and 2.00% (D4) chitosan to the basal diet, in which casein and fish meal were used as the protein source and fish oil as the lipid source, respectively. Results showed that: weight gain rate (WGR) and specific growth rate (SGR) increased whereas feed conversion ratio (FCR) decreased significantly (P<0.05) with chitosan addition No significant differences were found among chitosan-supplemented groups (P>0.05). Viscerosomatic index (VSI) decreased (P<0.05) with dietary chitosan supplementation (P<0.05). However, there were no statistical differences in hepatosomatic index (HSI), spleensomatic index (SSI), condition factor (CF) or survival ratio (SR) (P>0.05). Lipid content in whole fish, muscle and liver were decreased obviously by dietary chitosan (P<0.05) , while no change existed in moisture and protein contents (P>0.05). Alkaline phosphatase (ALP) activity in serum of D3 and D4 groups was decreased significantly (P<0.05) and there were no differences among other groups (P>0.05). Serum acid phosphatase (ACP) activity decreased as dietary chitosan supplementation level increased (P<0.05), while lysozyme (LZM) activity was increased (P<0.05). Total antioxidant capacity (T-AOC) of D4 group was significantly higher than that of the control and D1 group (P<0.05) and no differences were found among other groups (P>0.05). Superoxide dismutase (SOD) was not affected by dietary chitosan (P>0.05). |
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| Keywords: | Chitosan Oncorhynchus mykiss Growth performance Body composition Non-specific immunity |
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