罗非鱼(Tilapia mossambica,俗称越南鱼)是一种优良的养殖鱼类。由于繁殖率过高,致使养殖种群密度过大,个体小,尤其是雌鱼口腔含卵孵化时间较长,生长比雄鱼慢,大大影响产量和商品鱼质量。用性激素诱导产生全雄的罗非鱼仔鱼是一种有效的方法。我们于1977年和南海县水产养殖场新庄分场和广州市二沙鱼苗场合作,进行雄性激素诱导罗非鱼雌鱼雄 Tilapia mossambica (commonly known as the Vietnamese fish) is a good breeding fish. Due to the high reproductive rate, resulting in breeding population density is too large, small individuals, especially females ovoid hatch longer incubation time, growth slower than male, greatly affect the yield and quality of fish products. The use of sex hormones to induce whole male tilapia larvae is an effective method. In 1977, we cooperated with Xinhai Zhuang Aquaculture Farm in Nanhai County and Second Sand Fish Farm in Guangzhou City to conduct male hormone-induced female tilapia