期刊
AQUACULTURE RESEARCH
卷 49, 期 3, 页码 1302-1309出版社
WILEY
DOI: 10.1111/are.13585
关键词
Apostichopus japonicus; body colour; dietary protein; digestive enzyme; intestine
类别
资金
- National Key research and development Plan (Sino-Australian Centre for Healthy Coasts) [2016YFE0101500]
- National Natural Science Foundation of China [41676136, 41506192]
- Strategic Priority Research Program of the Chinese Academy of Sciences [XDA11020703]
- Natural Science Foundation of Tianjin, China [14JCQNJC15200]
We evaluated the effects of different proportions of dietary protein (5%, 10%, 15%, 20%, 25% and 30% protein) on the activity of digestive enzymes of normal and albino Apostichopus japonicus. The experimental diets were fed for 60days, the optimal conditions for digestive enzyme activity in sea cucumbers were studied. The optimal temperature for protease was 29.3 degrees C and the optimal pH was 1.8. The optimal temperature for amylase was 34.3 degrees C and the optimal pH was 6.7. The optimal temperature for cellulase was 56 degrees C and the optimal pH was 5.9. The activity of intestinal protease increased at first and then decreased as the proportion of dietary protein increased, reaching the maximum when the proportion of protein was 19.7%. The activity of protease in the intestine of normal sea cucumber was significantly lower than that of albino sea cucumber, and the activity of amylase was significantly higher than that of albino sea cucumber. This study is expected to provide a basis for further explaining the ecological difference of albino and normal A.japonicus.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据