弗氏柠檬酸杆菌对河蟹致病性的研究

首次报道了弗氏柠檬酸杆菌对河蟹的病原性、并导致其病理变化,药物对该菌的敏感试验及生产中药物治疗效果.从垂死的病蟹肝胰脏中分离得到可疑病菌,经人工感染试验证实此菌导致健康蟹发病死亡.该菌可导致河蟹的肝胰腺、鳃等发生病理变化,最终引起败血症而死亡.通过16种药物对该菌的敏感试验,筛选出有效药物,应用于生产中取得了较好疗效.  

STUDIES ON DISEASE OF MITTEN CRAB CAUSED BY CITROBACTER FREUDII

The paper deals with, pathogenicity and pathological changes induced of the Chinese river crab caused by Citrobacter freudii, medicinal sensitive tests of the pathogen and therapeutic effect of medicine in production. The pathogen was separated from hepatopancreas of moribund and diseased crabs. It was proved that this bacteria had caused the health crab infected and death through artificial infecting tests and the mortality was 100%. The pathogen was identified as Citrobacter freudii by the biological and biochemical determination. The pathogen could induce pathological changes of hepatopancreas and gill of river crab, and finally the septemia and death. Effective medicine was screened through the medicinal sensitive tests to the pathogen of 16 kind of drugs, and curative effect was observed in production.