摘要： 选用以枯草芽孢杆菌为主要成分的Ⅰ制剂及混合菌的Ⅱ制剂两种常用、商品化微生物制剂,对辽宁省池塘养殖草鱼进行投喂、泼洒和混合使用试验,并比较测定鱼肝脏、肠道组织中淀粉酶、蛋白酶及脂肪酶活性值。结果表明,以调节水质为主要作用的泼洒制剂II对草鱼体内消化相关酶活性影响不大,但以促进消化生长为主要作用的投喂制剂I对酶活性有较大促进作用,而制剂I/II混用在调节水质、帮助消化的同时能最大程度的促进草鱼体内消化相关酶活性提升,有助于促进草鱼生长及繁殖发育。因此,微生态制剂在草鱼池塘养殖中,对鱼快速健康生长有较好的促进作用。

关键词: 微生态制剂, 草鱼, 淀粉酶, 蛋白酶, 脂肪酶

Abstract: Two kinds of microecologics(named M-Ⅰ and M-Ⅱ),which were based on the Bacillus subtilis and had already been developed and applied in the practice,were selected to determine their influence on several digestive enzymes in grass carp.M-Ⅰ was used to mix with the feeding and M-Ⅱ was poured into the water of the ponds.Four groups were set in this study,including the control group,M-Ⅰ group,M-Ⅱ group,and the combination group of these two microecologics.After the usage of microecologics for 3 months,the amylase,protease and lipase of the livers and intestines were determined and compared with each other.The results indicated that M-II preparations,which mainly functioned on regulating the water quality,did not affect the three digestive enzymes in grass carp,while M-I preparations,which could promote digestion and growth of fishes,were found to greatly improve the enzyme activities.In addition,the mix usage of M-Ⅰ and M-Ⅱ were proved to play a role in both regulating the water quality and promoting digestion,which would further promote the growth and reproduction of grass carp.Therefore,it could be concluded that microecologics were benefit for the rapid and healthy growth of grass carp farmed in the ponds.

Key words: Microecologics, Grass carp, Amylase, Protease, Lipase

中图分类号: 

• S917