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目前,美国、日本、英国、以色列等国生产尼罗罗非鱼苗的方法与我国不同,他们的做法较新,单位面积产出鱼苗的数量大、成活率高,现介绍如下,供我国有关单位、有关部门或个人参考。选好亲鱼:雌鱼最好是曾经产过卵的,雄鱼已切除上腭,按3♀:1♂的比例放入水族箱中,每隔10天检查雌鱼一次。将含卵雌鱼(其下巴宽凸,呼吸时口不停地蠕动)捉住,让其头部浸入水中,手抓尾部,使尾部不停地摆动,使其口中所含的受精卵全部吐出。将吐出的卵洗净,去除死亡的,后
At present, the production methods of Nile tilapia in the United States, Japan, Britain and Israel are different from those in our country. Their methods are relatively new. The output of fry per unit area is large and its survival rate is high. , The relevant departments or individuals for reference. Select the broodstock: the best female has ever had egg production, the male has cut off the palate, according to the ratio of 3♀: 1♂ into the aquarium, check the female every 10 days. Egg female (his chin wide convex, mouth breathing constantly wriggling) to catch, let the head immersed in water, catch the tail, so that the tail kept swinging, so that the mouth all the spits contained fertilized eggs . Will spit the egg wash, remove the dead, after