消化酶活力在千年笛鲷幼鱼不同消化器官中的比较研究

Comparative study on specific activities of digestive enzymes in different organs of young Lutjanus sebae

测定和比较了千年笛鲷(Lutjanussebae)幼鱼不同消化器官的消化酶活性。结果表明,蛋白酶比活力为:肠>胃>肝胰脏(P<0·01);淀粉酶比活力为:肠>肝胰脏>胃(P<0·01);脂肪酶比活力为:肠>肝胰脏>胃,胃和肝胰脏间差异不显著(P>0·05),但二者和肠之间差异极显著(P<0·01)。千年笛鲷幼鱼肠道对食物的整体消化能力始终较强,肝胰脏和胃是消化食物的辅助器官。

The activities of digestive enzymes in three alimentary organs of Lutjanus sebae were detected and compared. The results showed that the protease activity was intestine 〉 stomach 〉 hepatopancreas （ P 〈 0. 01 ） ; and the amylase activity was intestine 〉 hepatopancreas 〉 stomach （P 〈 0. 01 ） ; and the lipase activity was intestine 〉 hepatopancreas 〉 stomach. The lipase activity difference between intestine and hepatopancreas or stomach was significant （ P 〈 0. 01 ） , but the difference between hepatopancreas and stomach was not significant （P 〉0. 05） . The digestive activities of intestine in young L. sebae were high. The stomach and hepatopancreas were auxiliary organs.