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笔者连续在值下镇西口水产场,对青鱼人工繁殖技术作了进一步地探索。通过实践观察,对提高“三率”(催产率、受精率、孵化率)有以下几点体会。 1.亲鱼培育池选择四周环境安静,无干扰,水深在1.5米以上,青鱼搭配在草亲鱼塘,每亩水面搭配1～2组,不混养鲤鱼;饲料以活螺蛳为主,辅投少量精料;水质保持清新、无污染,含氧充足,透明度在35厘米以
The author continued in the value of the town under the Xikou aquatic farms, artificial breeding of black carp made further exploration. Through practical observation, to improve the “three rates” (oxytocin rate, fertilization rate, hatching rate) the following experience. 1. Progeny breeding ponds to choose the surrounding environment is quiet, no interference, water depth of 1.5 meters or more, with grass carp fish ponds, with 1 to 2 groups per acre surface, do not polyculture carp; feed to live snail-based, auxiliary investment A small amount of concentrate; water to maintain fresh, pollution-free, adequate oxygen, transparency at 35 cm