When undertaking alexipharmic to contaminative birdhouse , must clean with eradicator first with defecate , solution of accept of second chloric acid disinfects reoccupy , use formalin and potassium permanganate fumigation finally 对污染的禽舍进行消毒时,必须先用去污剂清洗以除去污物,再用次氯酸纳溶液消毒,最后用福尔马林和高锰酸钾熏蒸消毒。