在淡水养殖鱼类的人工繁殖中,鲤鲫鱼的脑下垂体是用作鱼类人工催情产卵的主要激素之一。摘好脑垂体的时间以冬春季为好,雌雄均可,但必须是性成熟个体,一般鲤鱼个体重量要达750g以上,鲫鱼要达200g以上。 过去习惯上用利刀劈开鱼颅盖骨,再用镊子挑出脑下垂体,此法不但破坏了鱼的外形,影响了商品价值,而且操作麻烦,工作效率低。现在经过改进,从 In artificial breeding of freshwater cultured fish, the pituitary gland of the carp crucian carp is one of the major hormones used for spawning artificial fish aids. Picking good pituitary time in winter and spring as well, both male and female, but must be sexually mature individuals, general carp individual weight to reach more than 750g, carp to reach more than 200g. In the past, it was customary to split the skull with a knife and pick the pituitary gland with tweezers. This method not only ruined the shape of the fish, but also affected the value of the product. Moreover, the operation was troublesome and the work efficiency was low. Now improved, from