摘要
通过对斑节对虾不同生长阶段蛋白酶、脂肪酶及淀粉酶活性变化的分析,探讨了斑节对虾在生长过程中对蛋白质、脂肪和碳水化合物的消化利用。结果表明,根据消化酶活性,可将斑节对虾生长分为两个阶段。第1阶段,在体长10～12.5 cm阶段之前,随着个体的增大蛋白酶和脂肪酶活性不断升高;第2阶段,在12.5 cm之后,蛋白酶和脂肪酶活性呈现出一定程度的下降。肝胰腺、胃、肠3种不同消化器官的消化酶活性在不同生长期也不一致,大致上蛋白酶活性从高到低依次为:肝胰腺>胃>肠;脂肪酶活性:肠>肝胰腺>胃;淀粉酶活性:肠>胃>肝胰腺。
The change in activity of protease, lipase and amylase of Penaeus monodon at different growth stages was analysed in this paper, and the digestibility and availability of protein, lipid and carbohydrate during these periods were studied. The results showed that the growth of P. monodon can be divided into two stages based on the activity of digestive enzymes.The first growth stage was at body lengths of 10-12.5 cm, when the activity of protease and lipase continued rising with the increase in size of the shrimp. The second growth stage was at body lengths greater than 12.5 cm, when the activity of protease and lipase declined to some extent. The activity of protease, lipase and amylase in three digestive organs （hepatopancreas,stomach, intestines） were different at different growth stages. The ranking of protease activity in these organs was hepatopancreas〉stomach〉intestines; the ranking of lipase activity was intesty〉hepatopancreas〉stomach〉 and the ranking of amylase activity was intestines〉stomach 〉hepatopancreas.
出处
《海洋水产研究》
CSCD
北大核心
2007年第6期19-24,共6页
Marine Fisheries Research
基金
国家863高技术研究发展计划项目(2003AA603120和2006AA10A406)
广东省科技计划项目(C20828)
