水花鱼苗养成乌仔或夏花时,即要 分塘稀养或出塘外销,在出塘前1～3天需要拉网锻炼。拉网使鱼苗受惊,增加运动量,使肌肉结实,关箱使鱼苗密集,受到挤压刺激,促使分泌大量粘液和排出粪便,增加耐缺氧的适应力,能够经受住分塘和运输时的操作,对提高出塘运输和放养的成 Water fry nursery or summer flowers, that should be sub-ponds or out of ponds for sale in the pond 1 to 3 days before the need to pull net exercise. Stretch fry fry panic, increase physical activity, so that muscle strong, close the box so that fry crowded, stimulated by the squeeze, prompting the secretion of a large number of mucus and excretion, increased resistance to hypoxia, can withstand the sub-ponds and transport operations , To improve the transport and stocking into the pond