The Study on the Environmental Disinfection for Forest Frog

Abstract

In the study, 10% capric methyl bromide and compound peroxymonosulphate powder were used as disinfectant to study on the environmental disinfection for forest frog. The diluted disinfectant was sprayed to shed A and shed B with forest frog. 70000 one year old forest frogs were reared in the sheds. The air bacteria content and the bacteria content of the walls and equipment surface were detected. It was concluded from the study that compound peroxymonosulphate powder was sprayed to shed A and with forest frog. The total content of bacteria in the air is from 251 to 498 CFU/cm3 before disinfection, the content of coliform bacteria the air is from 22 to 44 CFU/cm3, and the content of bacterial in central sheds higher than in the four corners. The average total bacteria sterilization rate is 77.47% in 5 checkpoints. The average coliform bacteria sterilization rate is 85.78% in 5 checkpoints. We sampled and detected the walls, earth coverings and the bottom plastic sheet. The results show that the total content of bacteria in the air is from 148 to 235 CFU/cm2 before disinfection, the content of coliform bacteria the air is from 28 to 55 CFU/cm2. Bacterial content decreased significantly. The average total bacteria sterilization rate is 74.59%. The average coliform bacteria sterilization rate is 87.85%. Capric methyl bromide (10%) was sprayed to shed B and with forest frog. We detected bacterial content on the four corners and the central of sheds. The results show that the total content of bacteria is from 252 to 397 CFU/cm3 before disinfection, the content of coliform bacteria the air is from 18 to 35 CFU/cm3, and the content of bacterial in central sheds higher than in the four corners. The bacterial content is 279 CFU/cm3 after disinfection. We sampled and detected the walls, earth coverings and the bottom plastic sheet. The average total bacteria sterilization rate is 38.27%. The average coliform bacteria sterilization rate is 50.27%.