为提高鱼苗鱼种的成活率,在鱼苗和鱼种运输过程中,不论使用哪种工具和运输方法,都必须严格掌握如下技术要求。 一、体质要求 体质好的鱼苗和鱼种应是规格一致,躯体匀称,背尾饱满,鳞鳍完整无创伤,游动活泼。 二、拉网锻炼 鱼苗应在肉眼可看到鳔点出齐,开口吃食,体 In order to improve the survival rate of fry fish species, the following technical requirements must be strictly observed in the fry and fingerling transportation regardless of the tools and transport methods used. First, the physical requirements Good physical fry and fingerlings should be the same size, body symmetry, back full, scales fin complete non-invasive, swimming lively. Second, pull the net fry fish should be visible in the naked eye Qi point out, open food, body