鱼苗养殖过程中,疾病预防与控制是提高苗种健康水平和养殖效益的重要措施之一。鱼苗因个体较小、活动能力较弱,一般发病初期很难发现病症,给疾病的诊断与治疗带来一定困难,常可导致严重的经济损失。所以,鱼苗的疾病预防与控制在养殖过程中显得十分重要。1.发病原因刚孵化的鱼苗,个体小,活动能力弱,适应环境能力差,常常受到池塘环境条件等众多因素的影响, Fish fry breeding process, disease prevention and control is one of the important measures to improve the health of seedlings and breeding efficiency. Due to the smaller individual fry, activity is weak, the early onset of the disease is difficult to find the general illness to the diagnosis and treatment of certain difficulties, can often lead to serious economic losses. Therefore, fry disease prevention and control in the breeding process is very important. 1. The cause of the disease newly hatched fry, small individuals, weak activity, poor adaptability to the environment, and often affected by the pond environmental conditions and many other factors,