论文部分内容阅读
在我省养殖的中国对虾(Penaeus Orientalis)“红腿病”病害严重,发病率和死亡率都很高,给养殖业带来极大危害。目前,对中国对虾“红腿病”病因的研究已有报道,而长毛对虾(Penaeus penicillatus)患此病的病例尚少,尚未见有研究报道。1988年8—9月间,厦门同安西柯乡一带,发现长毛对虾“红腿病”流行,病害发生时对虾体长约7—10厘米,患病对虾食欲减少,活动力减弱,尾扇、游泳足、步足变红、鳃部变黄,镜检下鳃丝上有明显黄褐斑点,血淋巴液可见大量运动活泼杆菌。为此,我们对病虾进行细菌分离,研究了分离菌的病原性、可复现性及生物学特性。并探讨了病原菌的分类学位置,以期对长毛对虾“红腿病”有一概括的认识。
The “red-legged disease” of Penaeus Orientalis, which is farmed in our province, suffered from serious disease and high morbidity and mortality, which caused great harm to aquaculture. At present, the research on the etiology of “red-legged disease” in Chinese shrimp has been reported. However, there are few cases of this disease in Penaeus penicillatus and no reports have been reported yet. Between August and September 1988, Xiamen Tonganxixiang Township found that the epidemic of “red-legged” disease of P. longosus was about 7-10 cm in length when the disease occurred. The loss of appetite for the diseased shrimp reduced mobility and the tail fan , Swimming foot, foot reddish, yellow gills, microscopic examination gill filaments have significant chloasma spots, a large number of bloody lymphocyte activity of live bacteria. To this end, we carried out bacterial isolation of diseased shrimp and studied the pathogenicity, reproducibility and biological characteristics of the isolates. And explored the taxonomy of pathogenic bacteria in order to have a general understanding of the “red-legged disease” of long-headed shrimp.