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jia yu gong chang hua miao zhong pei yu qi de bing hai fang zhi
Author(s): 
Pages: 27-28
Year: Issue:  5
Journal: Current Fisheries

Keyword:  苗种培育工厂化疖疮病甲鱼放养密度土霉素穿孔病交叉感染漂白粉病害防治;
Abstract: 甲鱼工厂化苗种培育是甲鱼快速养殖的关键。由于其放养密度高,水质变化快,生态环境极易恶化,发病机率愈来愈高,所造成的损失也越来越大,因此,苗种培育期病害防治已成为甲鱼养殖生产中的一个重点和难点。1病害种类和特点1.1工厂化苗种培育期的甲鱼病害根据其发病原因主要分为4类:(1)细菌性疾病,如商皮病、疖疮病、穿孔病、出血病等;(2)真菌性疾病,如白斑病等;(3)营养性疾病,如萎瘪病、脂肪代谢不良症、肠炎、雄性生殖器突出等;(4)其它.如氨中毒、水肿病、生长呆滞症等。1.2其发病特点:(1)暴发猛。通常几天内就可大批死亡,出现死亡高峰;(2)死亡多。当暴发后死亡数急剧增加;(3)病程长。一般感染的疾病
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