【摘要】 要从扎龙湿地１１种野生和笼养鸟类的口咽部分泌物、泄殖腔内容物及新鲜粪便中，曾分离出２５种不同的细菌。为了探讨这些自然携带菌的致病性，根据以往文献记载对所分离到的２５种细菌中可能具有致病性或致病性不明确的１４种细菌进行了小白鼠致病性试验。有４种细菌在接种６ｄ内引起部分接种小白鼠死亡；其余的１０种细菌在接种后，都使小白鼠表现出不同程度的临床症状，接种后６～８ｄ迫杀，可见不同程度的脏器病变。更多还原

【Abstract】 different species of bacteria were isolated and identified from oral-pharyngal secreation, coloaca contents and fresh faeces of 178 wild and captive birds (11 species) on Zhalong Nature Reserve Wetland in Heilongjiang Province. 14 species of bacteria with suspicious or unclear pathogenetic characteristics were examined for their pathogenicity by inoculating them to mice. Within 6d after inoculation, part of the mice were died due to infected by 4 species of bacteria separatively. The other 10 species of bacteria showed pathogenicity in varying degrees, the mice had a wide range of clinical signs after inoculation and showed pathological lesions when killed 6～8d after inoculation.更多还原