鱼类生活在水中,引起鱼类生病的原因很难了解清楚,要正确的诊断和治疗鱼病,是一件很困难的事,它不同家畜、家禽生病,人们可以采取口喂或注射药物等方法来治疗,而对鱼病尚无好办法来医治,特别是食欲减退的病鱼,虽有特效药物,也无法进入病鱼体内,来达到治好的目的, It is difficult to understand why fish are living in water and causing fish diseases. It is a very difficult task to diagnose and treat fish diseases correctly. When it is different from livestock and poultry, people can take oral or injecting drugs, etc. Method to treat, but the fish disease is no good way to heal, especially the loss of appetite sick fish, although the effects of drugs, can not enter the body of sick fish to achieve the purpose of curing,