Sterilization Effects of Bacterial Inhibitor on Escherichia coli in Cattle Manure Compost  

牛粪堆肥中添加抑菌剂对大肠杆菌的杀灭效果(英文)

作　　者：敖日格乐[1] 王纯洁[1] 于俊娥[1] 斯木吉德[1] 吴美云[1] 程佳[1] 陈昆[1] 

机构地区：[1]内蒙古农业大学动物科学与医学学院,内蒙古呼和浩特010018

出　　处：《Agricultural Science & Technology》2008年第6期154-156,共3页农业科学与技术（英文版）

基　　金：Supported by Key Project of Natural Science Foundation of Inner Mongolia Autonomous Region(200607010403);National Key Project of Scientific and Technical Supporting Programs Funded by Ministry of Science&Technology of China(2006BAD04A15)~~

摘　　要：[Objective] The aim of this study was to explore the sterilization effects on Escherichia coli by adding bacterial inhibitor(CaCN2)during the process of cattle manure composting so as to provide a theoretical basis for cattle manure harmless treatment.[Method] Both experimental groups supplemented with 2.0% bacterial inhibitor and control groups without bacterial inhibitor were cultured under different temperatures(20,30,37,50,60 ℃)to determine the optimal composing temperature.Under 30 ℃,different bacterial inhibitor doses(0,2.0%,2.5%,3.0%)were added into the compost to obtain the optimal bacterial inhibitor addition dose.[Result] 30,50 and 60 ℃ were ideal temperatures for sterilization of E.coli.Under 30 ℃,E.coli couldn't be detected in 2.5% dose group and 3.0% dose group after culture for 48 h,demonstrating no less than 2.5% bacterial inhibitor should be added.[Conclusion] It has an important significance to enhance the sterilization effects on E.coli by adding CaCN2 into cattle manure compost especially in winter.[Objective] The aim of this study was to explore the sterilization effects on Escherichia coli by adding bacterial inhibitor(CaCN2)during the process of cattle manure composting so as to provide a theoretical basis for cattle manure harmless treatment.[Method] Both experimental groups supplemented with 2.0% bacterial inhibitor and control groups without bacterial inhibitor were cultured under different temperatures(20,30,37,50,60 ℃)to determine the optimal composing temperature.Under 30 ℃,different bacterial inhibitor doses(0,2.0%,2.5%,3.0%)were added into the compost to obtain the optimal bacterial inhibitor addition dose.[Result] 30,50 and 60 ℃ were ideal temperatures for sterilization of E.coli.Under 30 ℃,E.coli couldn't be detected in 2.5% dose group and 3.0% dose group after culture for 48 h,demonstrating no less than 2.5% bacterial inhibitor should be added.[Conclusion] It has an important significance to enhance the sterilization effects on E.coli by adding CaCN2 into cattle manure compost especially in winter.

关 键 词：BACTERIAL INHIBITOR Cattle MANURE COMPOSTING ESCHERICHIA coli 

分 类 号：S141.4[农业科学—肥料学]