| 摘要: |
| 本实验以鱼粉、酪蛋白以及藻粉等为主要原料配制了粗蛋白质量分数为12%、16%、20%、24%、28%、32%的6 种半精制刺参(Apostichopus japonicus)饲料, 研究饲料中粗蛋白含量对刺参生长、蛋白酶和淀粉酶活性以及肠道结构的影响。结果表明, 刺参饲料中粗蛋白含量对刺参的生长、饲料系数、蛋白质效率以及消化道中蛋白酶和淀粉酶活性都有明显影响, 肠道蛋白酶和淀粉酶活性对饲料粗蛋白含量有适应性, 随饲养时间也有适应性变化。饲料中粗蛋白含量对刺参肠道结构也有一定的影响。 |
| 关键词: 刺参(Apostichopus japonicus) 粗蛋白 蛋白酶 淀粉酶 |
| DOI： |
| 分类号: |
| 基金项目:青岛市科技计划资助项目(05-1-HY-79) |
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| The effect of dietary protein on the enzymes and intestinal structure of Apostichopus japonicus |
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| Abstract: |
| To investigate the effect of dietary crude protein levels on the growth, protease or amylase activity, and the intestinal structure of Apostichopus japonicus, a feeding experiment was conducted with six semi-purified diets with protein content of 12%, 16%, 20%, 24%, 28%, and 32%. The results showed that growth performance, protease or amylase activity and the intestinal structure of sea cucumbers were significantly affected by dietary protein content. Intestinal protease or amylase activity could not only adapt for the diet crude protein, but also changed as feeding time. The histology observation showed that the mid-intestinal structure was affected by dietary content of crude protein. |
| Key words: sea cucumber (Apostichopus japonicus) crude protein protease amylase |
