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该项目在繁殖生物学研究的基础上，准确地掌握催产期，并比天然的产期提早15～20天；通过药物和剂量的筛选，及利用自制催产药剂，其催率达到与脑垂体合剂相同效果，解决了大量催产时脑垂体取材难的问题，使野生鲶鱼产卵率达gO％以上；采用自然“发塘”和人工饲料为主育苗的两
Based on the research of reproductive biology, the project accurately grasps the period of obstetric induction and is 15 to 20 days earlier than the natural period of production. Through the screening of drugs and dosage and the use of self-made drug-producing agents, the project achieves a synergistic effect with pituitary mixture The same effect, to solve a large number of oxytocin pituitary difficult to obtain materials, so that the wild catfish spawning rate of gO% above; the use of natural “ponds” and artificial feed-based nursery two