体重和摄食水平对鳜和乌鳢身体的生化组成和能值的影响
EFFECTS OF BODY WEIGHT AND RATION LEVEL ON THE BODY COMPOSITION AND ENERGY CONTENT OF SINIPERCA, CHUATSI AND CHANNA ARGUS
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摘要: 本实验结果表明,野生鳜和乌鳢的干物质含量、蛋白质含量、脂肪含量和能值均随体重的增加而显著增加(P0.05);实验鳜和乌鳢干物质含量、脂肪含量和能值均随摄食水平的增加而显著增加(P>0.05),实验鳜蛋白质含量和灰分含量与摄食水平关系的回归方程不显著(P0.05),灰分含量随摄食水平的增加而显著减小(P>0.05)。尽管不同体重的野生鳜和乌鳢及实验条件下不同摄食水平的鳜和乌鳢蛋白质含量、脂肪含量和能值均与干物质含量呈显著的回归关系(P<0.05),但两组数据间的回归方程并不完全吻合。Abstract: The body composition and energy content in the wild Siniperca chuatsi and Channa argus of different sizes and in S.chuatsi and C.argus fed different rations were determined.For the wild S.chuatsi and C argus of different sizes, the contents of dry matter, protein, lipid and energy significantly increased with increasing body weight (P 0.05), ash content of the wild S.chuatsi also significantly increased with increasing body weight (P 0.05), but the regression relationship between ash content and body size in the C.argus was not significant (P 0.05).For S.chuatsi and C.argus fed different rahons, contents of dry matter, lipid and energy significantly increased with increased ration levels (P 0.05); the regression relationship between content of protein or ash and rahon level was not signiflcant in S.chuatsi (P 0.05); the protein content significantly increased with increasing rationleveI, but ash content significantly decreased with increasing ration level in C.argus (P O.O5).Though significant regression relahonship betWeen dry matter contentand contentS of protein, liPid and energy both in the wild S chuatsi and C.argus ofdifferent body sizes and in S. chuatsi and C. argus fed different rations were found (P 0.05), the regression equations established using the two sets of data did not agree completely.
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Keywords:
- Siniperca chuatsi /
- Channa argus /
- Body weight Ration level /
- Body composition /
- Energy content
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