单雄性罗非鱼又称奥尼鱼,是用奥利亚罗非鱼为父本()与尼罗罗非鱼为母本()进行杂交而获得的全雄杂交种。它除了具有普通罗非鱼生长快、产量高、食性杂、养殖周期短、病害少、耐低氧,适应性强区肉质鲜美、骨刺少的优点外,还具有以下优势:①雄性率高,可达到83％～100％,平均在92％以上,对提高个体规格和群体产量极为有利,基本上能解决罗非鱼在养殖过程中繁殖过多的问题。②生长速度快,生 A single male tilapia, also known as the Ohno, is a male hybrid that was obtained by crossing the Oreochromis niloticus parent with Nile tilapia as the female parent. In addition to its advantages of fast growth, high yield, miscellaneous eating habits, short breeding cycle, less disease, hypoxia tolerance and strong adaptability, it has the following advantages: ① high male rate, Can reach 83% to 100%, with an average of over 92%. It is extremely beneficial to improve individual specifications and group yield, and can basically solve the problem of too much breeding of tilapia during breeding. ② fast growth, students