Disclosed is a factory artificial
seedling method of
tilapia. A filtering
temperature control device (a) processes and controls the temperature,
salinity, PH value of water and supplies water for maintaining
oxygen content. A
hatching device (b) comprises a conical
hatching barrel (2) and a collecting tank (3), an open is arranged at the upper part of the
hatching barrel (2) and is connected to a receiving tank (4) from a
flume. A
water supply pipeline is directly inserted into the bottom of the hatching
barrel (2) by a valve, micro water current is controlled to
impact fertilized eggs to roll and hatch completely. Newly-hatched
larva enters into the collecting tank (3) with
water flow from the upper open of the hatching barrel (2), after the
larva is processed according to genders, the
larva is sent into a
seedling tank (6) and is cultured 15 to18 days, then the larva can be sold and cultured as seedlings. The
flume (5) under the collecting tank (3) and the
seedling tank (6) is connected with the filtering
temperature control device by a refluxing pipeline, and backwater is processed and reused in circulation. The technical method of the invention is scientific, the design of the device is reasonable, the practicality is strong, the factory production can be realized, the seedlings can be supplied for the large-scale cultivation, and the quality of fish fry cultured by the method is good, the
survival rate is high, and the method has the good economic benefit.