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用奥利亚罗非鱼和尼罗罗非鱼杂交经处理后获得的子一代全雄性罗非鱼,在廉江老鸭塘养殖场进行越冬和生长试验,取得较好的效果。1992年11月17日放苗入塘自然越冬,规格1.5—3cm,越冬期间,最低气温5℃,最低水温6.5℃,无任何越冬设施,在周围池塘的越冬罗非鱼大批死亡的情况下,该鱼成活率为99.6％;在以鸭粪肥水进行成鱼试养过程中,经30天养殖,平均水温28.5℃,鱼体重由103.0克/尾增至705克/尾,平均尾日增重6.4克。
The whole generation of male tilapia, obtained from the hybridization between O. tilapia and N. niloticus, was tested for overwintering and growth at the Lao Duck pond farm in Lianjiang River, and achieved good results. November 17, 1992 Fangmiao pond naturally wintering, specifications 1.5-3cm, during the winter, the minimum temperature of 5 ℃, the minimum temperature of 6.5 ℃, without any overwintering facilities, in the surrounding ponds overwintering tilapia died in large numbers, The survival rate of the fish was 99.6%. During the fish trial with duck manure water, the fish body weight increased from 103.0 g / tail to 705 g / tail after 30 days of breeding. The mean daily body temperature increased 6.4 grams.