(接上期)2.4烂尾病(tail-rodtiseaseofchannelcatfis)h根据初步的研究结果,病原菌被认为是嗜水气单胞菌(A.hydrophila)。病鱼游动缓慢,摄食减少,常游于岸边,初期尾柄部皮肤变白,失去粘液,肌肉红肿,继而尾鳍分支,尾柄肌肉溃烂脱落,尾部骨骼外露,可发生死亡。这种疾病主要发生于6 (Continued) 2.4 Tail-of-disease (channel-tail disease) h According to preliminary results, the pathogen is considered to be A. hydrophila. Diseased fish swimming slowly, feeding reduced, often swimming in the shore, the initial caudal Department of the skin whitish, loss of mucus, muscle swelling, and then caudal fin branch caudal muscle ulceration shedding, tail bone exposed, can occur death. The disease occurs mainly in 6