一、病因及症状胡子鲶“黑体病”是一种细菌性传染病,病原体较复杂,多种细菌可引发此病。该病与饲料及水体污染有密切关系。投喂霉变饲料,或带病菌水注入饲养池都会直接引起发病。长期投喂单一饲料,或时饥时饱,导致胡子鲶消化系统失调,也会间接引起“黑体病”发生。患病鱼体色变黑,胸鳍基部红肿,有的出现头背部霉斑点、鳍条溃烂、 First, the etiology and symptoms Bearded cat “black body disease” is a bacterial infectious disease, pathogens more complicated, a variety of bacteria can cause the disease. The disease and feed and water pollution are closely related. Feeding moldy feed, or bacteria with water into the feeding pool will cause a direct result. Long-term feeding a single feed, or when hunger full, leading to catfish digestive disorders, will indirectly cause “black body disease” occurred. Sick black fish body color, pectoral fin base inflamed, and some head back mold spots, fins ulceration,