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１材料与方法１．１水源及水质水源为受到轻度污染的外河水，其中混有附近甲鱼养殖场等单位排出的废水，其细菌总数大于１．５万／升，内含产气单孢菌等致病菌。水源水用泵提送到水塔，经蒸汽加温后再输入至温室水泥池，池水温度维持在２６～２７℃。１．２养龟盆底面积为０．
1 Materials and methods 1.1 Water sources and water quality The water source is mildly polluted river water, mixed with wastewater discharged from nearby turtle farms and other units, the total number of bacteria is greater than 15,000 / liter, containing gas and spore Bacteria and other pathogens. Water source pump to the water tower, after steaming and then enter the greenhouse cement pool, the water temperature maintained at 26 ~ 27 ℃. 1.2 raised turtle base area of 0.