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| Analysis of Nutritional Composition of Different Edible Parts of F2 Generation of Commercial Andrias davidianus |
| WANG Jin-hua，WANG Jun，LI Can |
| Guizhou High College Key and Special Laboratory of Pest Management and Resource,
Department of Biology and Environmental Engineering, Guiyang University, Guiyang 550005, China |
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Abstract In order to understand the nutritional composition of different edible parts of F2 generation of commercial Andrias davidianus, water, protein, fat and ash were determined by the national standard methods and reducing sugar was analyzed by anthrone colorimetry. The edible parts accounted for 76.23% of the total body weight ofAndrias davidianus, including skin （8.56%）, muscle （wheat meat; 39.90%; mainly distributed in the back, belly, and tail ）, blood and internal organs （23.05% in total） and fat （mainly distributed in the tail; 4.73%）. The main nutritional composition of these edible parts was water, protein, fat and mineral elements. These edible parts could be ranked as follows： skin 〉 back muscle 〉 tail muscle 〉 belly muscle 〉 intestine 〉 liver 〉 fat in decreasing order of protein content; fat 〉 liver 〉 tail muscle 〉 intestine 〉 belly muscle 〉 back muscle 〉 skin in decreasing order of fat content. No reducing sugar was found all other edible parts except the liver. All edible parts were rich in trace elements. From these results, it can be seen that F2 generation of commercial Andrias davidianus is a highly nutritional meat food.
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2012, Vol. 26 
