鱼类是低等的脊椎动物 ,其遗传控制作用很原始 ,在外界条件的作用下 ,其性别很容易发生变化。一般利用性激素就能诱导鱼的性别向人们希望的方向发展。性激素分两种 ,睾丸分泌的为雄性激素 ,卵巢分泌的为雌性激素。鱼类的原始生殖上皮组织 ,同时具有决定向雌性发育和向雄性发育 Fish is a low-level vertebrate and its genetic control is very primitive. Under the influence of external conditions, its sex can easily change. The general use of sex hormones will be able to induce the fish’s gender to the direction of hope. Sex hormones in two, testicular secretion of male hormones, ovarian secretion of estrogen. Fish’s primordium of genital epithelium, at the same time has the decision to develop to the female and male to male