细鳞鱼摄食和生长最适水温的研究 |
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引用本文: | 牟振波,刘洋,徐革锋,李永发.细鳞鱼摄食和生长最适水温的研究[J].鲑鳟渔业,2011(4):6-8,24. |
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作者姓名: | 牟振波 刘洋 徐革锋 李永发 |
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作者单位: | 中国水产科学研究院黑龙江水产研究所,黑龙江哈尔滨150070 |
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基金项目: | 国家“十一五”支撑计划(2006BAD03B08); 公益性行业(农业)科研专项经费资助(201003055-15); 中央级公益性科研院所基本科研业务费专项(201102) |
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摘 要: | 在室内控温水族箱中设6℃、11℃、16℃和21℃四个水温组,饲养7周,研究了初始体重为1.72±0.24g的细鳞鱼(Brachymystax lenok)幼鱼摄食和生长的最适水温。结果表明,16℃时细鳞鱼的特定生长率(SGR)、日增重(DWG)、食物转化率(FCE)和摄食率(FI)显著高于其他处理组。这些参数与水温(T)之间的相关关系可用二次回归曲线来描述,特定生长率与水温的回归方程为SGR=(-2.601)+(0.887)T+(-0.027)T2;摄食率与水温的回归方程为FI=(0.111)+(0.292)T+(-0.009)T2(P〈0.01,R=0.990);食物转化率水温的回归方程为FCE=(52.828)+(11.951)T+(-0.393)T2。细鳞鱼在11~21℃都可以摄食生长,最适水温为15.20℃~16.43℃。
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关 键 词: | 细鳞鱼 水温 摄食率 生长率 |
The Optimum Temperature for Growth and Feeding in Brachymystax lenok |
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Authors: | MOU Zhen-Bo LIU Yang XU Ge-Feng LI Yong-Fa |
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Institution: | (Heilongjiang River Fishery Research Institute,Chinese Academy of Fishery Sciences,Harbin 150070,China) |
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Abstract: | The optimum temperature for growth and feeding was studied in lenok Brachymystax lenok weighing 1.72±0.24g at of 6℃,11℃,16℃,and 21℃for 7 days in a laboratory.The results showed that the specific growth rate(SGR),daily weight gain(DWG),food conversion efficiency(FCE)and feed intake(FI) were found significantly higher than those in other groups at 16℃.The correlations between these parameters and water temperature(T) were described by nonlinear regression models: SGR=(-2.601)+(0.887)T+(-0.027)T2(P0.01,R= 0.979),FI=(0.111)+(0.292)T+(-0.009)T2(P0.01,R=0.990),FCE=(52.828) +(11.951) T+(-0.393) T2(P0.01,R=0.933).It is concluded that the optimum temperature was showed to vary from 15.20℃ to 16.43℃. |
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Keywords: | Brachymystax lenok water temperature feed intake specific growth rate |
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