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《Journal of Beijing Normal University(Natural Science)》 2001-01
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EFFECTS OF DIETARY PROTEIN LEVELS ON GROWTH AND ACTIVITY OF DIGESTIVE ENZYMES OF GIANT FRESH WATER PRAWN (Macrobrachium rosenbergii)

Dong Yunwei Niu Cuijuan Du Li (College of Life Science, Beijing Normal University, 100875, Beijing, China)  
The Effects of dietary protein levels ( w (protein)=20 2%, 29 6%, 40 8% and 51 2%) on the growth and activity of digestive enzymes of giant fresh water prawn ( Macrobrachium rosenbergii ) are investigated. No significant differences between Y SGR ( P 0 05) and activity of amlyase ( P =0 108) are found among experimental groups with different dietary protein levels. However, dietary protein levels have significant effects on the activity of tryptase ( P =0 017) and pepsin ( P =0 002). At higher dietary protein levels, the activity of pepsin and tryptase increase significantly, while the ratio of the activity of amylase to tryptase decrease. No correlation between growth and activity of digestive enzymes is found in present work.
【Fund】: 中国科学院水生生物研究所淡水生态与生物技术国家重点实验室资助项目
【CateGory Index】: S966.12;;S963.71
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