不同饲料对黄鳝消化酶活性的影响

进行了黄鳝喜食的天然动物性饵料蚯蚓、鲢肌肉和配合饲料对黄鳝消化酶活性影响的比较研究。结果表明：(1)黄鳝各消化组织中蛋白酶活性均以摄食蚯蚓组增加幅度最大，其次为摄食鲢肌肉组，而以摄食配合饲料的蛋白酶活性增加最小；(2)胰蛋白酶的活性变化则以摄食鲢肌肉组的增加幅度最大，以摄食蚯蚓组次之，摄取配合饲料组的增加幅度最小；(3)淀粉酶的活性以摄取配合饲料的黄鳝的增加幅度最大，其次为摄食鲢肌肉组，增加幅度最小的为摄取蚯蚓组个体；(4)脂肪酶的活性变化以摄取鲢肌肉的增加幅度最大，其次为摄食蚯蚓的，摄食配合饲料组增加幅度最小。这表明不同饲料对黄鳝消化器官消化酶的活性影响不同，这可能与不同饲料的营养组成、性质有关，食物中的不同营养物质会刺激黄鳝消化器官分泌相应的消化酶，以便更好地消化所摄取的食物。

Effects of different diets on activities of digestive enzymes of Monopterus albus

Effects of different diets (Pheretima, flesh of silver carp, formulated diets) on the activities of digestive enzymes of Monopterus albus were studied. The results showed: (1) The activities of protease in the individuals that fed on different diets from higher to lower were in the descending sequence of earth worm (Pheretima), flesh of silver carp and formulated diets; (2) The activities of trypsin in the individuals that fed on different diets from higher to lower were in the descending sequence of flesh of silver carp, worm and formulated diets; (3) The activities of amylase in the individuals that fed on different diets from higher to lower were in the descending sequence of formulated diets, flesh of silver carp and worm; (4) The activities of lipase in the individuals that fed on different diets from higher to lower were in the descending sequence of flesh of silver carp, worm and formulated diets. This suggested that the different diets that M. albus fed on could affect the activities of digestive enzymes differently, and this might be that different nutritional matter could stimulate digestive organs to secrete relevant digestive enzymes to digest relevant nutritional matter better.