PURPOSE: A bullhead early seeding production method is provided to provide a base for an early seeding production and a complete culture through an efficient maturation induction method of a bullhead brood fish. CONSTITUTION: A bullhead early seeding production method comprises following steps: a step of collecting a bullhead brood fish a step of maintaining the brood fish in a constant breeding water temperature, domesticate and culture for two weeks a step of maturing the cultured brood fish by moving to a circulation filtering type brood fish water tub and controlling the water temperature and the photo period. The constant breeding water temperature is 23>=. For the stabilization and feed acclimation of the brood fish, an external shock is excluded and a small amount of the freeze small prawn is supplied as a main feeding twice a day to domesticate. The bullhead is cultured for a three-month early mature based on the photo period and the water temperature condition of mid-June which is the spawning season of the cultured bullhead. [Reference numerals] (AA) Bullhead adult fish production (BB) Bullhead mother collection (CC) Management and breeding (DD) Sexual maturity inducement by environment control (EE) Spawning and fertilization (FF) Roe growing (GG) Bullhead roe production (HH) Bullhead farming자연산 및 양식산 친어를 이용하여, 수온 및 광주기의 조절을 통한 조기성숙을 유도하고 산란 유도 호르몬에 의한 수정란을 확보하여 자연 산란기보다 3-4개월 일찍 종묘를 생산하는 동자개 조기종묘생산 방법에 관한 것으로, (a) 동자개 친어를 수집하는 단계, (b) 상기 (a)단계의 친어를 일정 사육수온으로 유지하여 2주간 순치 및 사육하는 단계, (c) 상기 (c)단계에서 사육된 친어를 순환 여과식 친어 수조로 옮기고 수온 및 광주기 조절하여 성숙시키는 단계를 포함하는 구성을 마련한다.상기와 같은 동자개 조기종묘생산 방법을 이용하는 것에 의해, 동자개 친어의 효율적인 성숙유도 방법을 통해 조기종묘생산과 완전양식이 될 수 있는 기반을 제공할 수 있다는 효과가 얻어진다.
