鲤、鲫鱼苗由受精卵孵化,出膜后3～4天,长度6毫米左右即可自由游泳并开始摄食。饲养鱼苗主要靠泼洒豆浆,也可适当施肥后,吃一些草履虫、轮虫和枝角类的幼体。因此从鱼苗阶段开始,鲤鱼、鲫鱼就养成了杂食习性。开口料是指养殖的鲤鱼、鲫鱼在幼鱼阶段第一次摄食时吃的饵料。作为商品饵的开口料当然需要保持良好的诱 Carp, crucian carp hatching by the fertilized eggs, after the film 3 to 4 days, about 6 mm in length to swim freely and start feeding. Mainly rely on sprinkled milk fry soy milk, fertilizer may also be appropriate to eat some Paramecium, rotifers and cladocera larvae. So from the fry stage, carp, crucian carp to develop omnivorous habits. Open material is the carp breeding, crucian carp feeding in the first stage of eating juvenile food. Of course, there is a need to maintain a good lure as an opening material for commercial baits