中华鳖爱德华氏菌病病原和组织病理研究

从中华鳖病病鳖的肝脏分离得到菌株ｓ－１。用菌株Ｓ－１进行人工感染，１００％的鳖患病，从感染的病鳖的肝脏分离到菌株ｓ’－１，经生理生化反应测定，它与菌株ｓ－１特性一致。经鉴定，菌株ｓ－１是迟钝爱德华氏菌，野生型。爱德华氏菌感染会引起鳖的脏器发生变质性病变。主要症状呈肝脏型，肝局部坏死，有结节状肉芽肿。

Studies on the pathogeny and tissue pathology of Edwaresielliasis in Trionyx sinensis

This paper presents the pathogenic indentification, tissue pathology of the Edwardsieilliassis in soft-shelled turtl (Trionyx sinensis ). Strain - 1 was isoated from the liver of diseased turtles. the artifical infeetion by the strain s - 1, 100% of turtles diseased. Strains' - 1 was isolated from the artificial infected turtles. It was proved that the strain s' - 1 was the same as the strain s - 1 through physical and biochemical reactive determination. It was identified that the strain s- 1 belongs to Edwardsiella tarda, wild type. This bacteria could cause an alterative pathological changs, characterized by liver type with partial necrosis and spotted granlomatous, in intemal organs of soft-shelled turtles.