养殖密度对日本黄姑鱼幼鱼生长及非特异性免疫的影响
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- 英文论文题名：Effects of different stocking density on growth performance and non-specific immunity of juvenile Nibea japonica
- 论文作者：王跃斌 ; 胡成硕 ; 胡则辉 ; 朱云海 ; 许源剑 ; 柴学军
- 英文论文作者：WANG Yuebin ; HU Chengshuo ; HU Zehui ; ZHU Yunhai ; XU Yuanjian ; CHAI Xuejun ; Zhejiang Marine Fisheries Research Institute
- 年：2016
- 作者机构：农业部重点渔场渔业资源科学观测实验站浙江省海水增养殖重点实验室浙江省海洋水产研究所;
- 论文关键词：日本黄姑鱼 ; 养殖密度 ; 生长 ; 非特异性免疫
- 英文论文关键词：Nibea japonica ; stocking density ; growth ; non-specific immunity
- 会议召开时间：2016-11-02
- 会议录名称：2016年中国水产学会学术年会论文摘要集
- 语种：中文
- 分类号：S965.325
- 学会代码：OGSB
- 会议名称：2016年中国水产学会学术年会
- 会议地点：中国四川成都
- 主办单位：中国水产学会、四川省水产学会
- 学会名称：中国水产学会
- 页数：1
- 文件大小：560k
- 原文格式：D
- 会议级别：全国
摘要
以初始体重(7.67±0.85)g的日本黄姑鱼幼鱼为研究对象,研究了不同养殖密度对日本黄姑鱼幼鱼生长和非特异性免疫的影响。将其随机分为5组,每缸(200L)分别放养50ind、100ind、150ind、200ind、250ind幼鱼,密度分别相当于1.9 kg/m~3、3.8 kg/m~3、5.7 kg/m~3、7.6 kg/m~3、9.0kg/m~3,依次记为G1、G2、G3、G4、G5,每组3个重复,养殖时间为30d。结果显示,G5组幼鱼增重率显著低于其他各组(P<0.05),其成活率也较低。血清溶菌酶活性、皮质醇含量随着养殖密度的增加分别表现出降低、增加的趋势,但各组间差异均不显著。不同养殖密度下各组日本黄姑鱼幼鱼的肾脏、肝脏、肌肉及鳃中超氧化物歧化酶(SOD)、过氧化氢酶(CAT)、碱性磷酸酶(AKP)和酸性磷酸酶(ACP)活力有所不同,但总体上没有出现明显差异。结果表明,实验密度组间日本黄姑鱼幼鱼生长及存活出现了差异,但其非特异性免疫性能并未受到明显影响。
The experiment was conducted to evaluate the effect of stocking density on growth of juvenile Nibea japonica and growth performance and non-specific immunity for 30 d cultivation with initial body weight(7.67 ± 0.85) g of Nibea japonica, which were randomly divided into 5groups, juvenile fish were stocked in each cylinder(200L) for 50, 100, 150, 200, 250 per tank.The density were equivalent to 1.9kg/m~3,3.8 kg/m~3,5.7 kg/m~3,7.6 kg/m~3,9.0kg/m~3 and were marked as G1,G2,G3,G4 and G5. Each group had three replicates. The results showed that the weight gain rate of G5 was significantly lower than that of the other groups(P<0.05) and its survival rate was also lower. With increasing of stocking density,activity of lysozyme and concentration of cortisol showed an increasing and decreasing trend,respectively,but but no significant difference among all groups.On the whole,there were no significant difference of the activity of superoxide dismutase(SOD), catalase(CAT), alkaline phosphatase(AKP) and acidphosphatase(ACP) in kidney, liver, muscle and gill of juvenile N. japonica among the groups The results indicated that there were some differences in growth performance and survival rate among all stocking density groups,but the non-specific immunity of juvenile Nibea japonica appeared unaffected by the experimental stocking density.
The experiment was conducted to evaluate the effect of stocking density on growth of juvenile Nibea japonica and growth performance and non-specific immunity for 30 d cultivation with initial body weight(7.67 ± 0.85) g of Nibea japonica, which were randomly divided into 5groups, juvenile fish were stocked in each cylinder(200L) for 50, 100, 150, 200, 250 per tank.The density were equivalent to 1.9kg/m~3,3.8 kg/m~3,5.7 kg/m~3,7.6 kg/m~3,9.0kg/m~3 and were marked as G1,G2,G3,G4 and G5. Each group had three replicates. The results showed that the weight gain rate of G5 was significantly lower than that of the other groups(P<0.05) and its survival rate was also lower. With increasing of stocking density,activity of lysozyme and concentration of cortisol showed an increasing and decreasing trend,respectively,but but no significant difference among all groups.On the whole,there were no significant difference of the activity of superoxide dismutase(SOD), catalase(CAT), alkaline phosphatase(AKP) and acidphosphatase(ACP) in kidney, liver, muscle and gill of juvenile N. japonica among the groups The results indicated that there were some differences in growth performance and survival rate among all stocking density groups,but the non-specific immunity of juvenile Nibea japonica appeared unaffected by the experimental stocking density.
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