论文部分内容阅读
在黄鳝养殖过程中,常有多种疾病或寄生性害虫危害其生长,遂严重影响了经济效益。现将各种病害的病因、病症及防治方法分别介绍于后,供养殖者和专业户参考。1常见疾病及防治1.1痉孪症该病是目前对黄鳝人工养殖威胁最大的病害。主要表现为头部极度痉挛,身体成卷曲状,易受惊,且受
In the eel farming process, often a variety of diseases or parasitic pests endanger its growth, thus seriously affecting the economic benefits. Now the causes of various diseases, diseases and prevention methods were introduced later, for farmers and professional reference. 1 common diseases and prevention 1.1 spasm disease is currently the most etiolated diseases of eel breeding diseases. Mainly for the extreme head cramps, body curly shape, susceptible to shock, and by