High-density rotifer culture device and method

The invention discloses a high-density rotifer culture device and method. The rotifer breeding device comprises a breeding trough, a microalgae culture barrel and a central control system. The methodcomprises the steps of pre-treatment of the rotifer culture device, microalgae culture, rotifer culture, rotifer collection and cyclic breeding; and through the central control system, the microalgaeculture barrel is controlled, carbon dioxide is continuously supplied to accelerate growth of microalgae, the growth requirements of rotifers are met by controlling the microalgae culture barrel to transport high-density microalgae, as feed, to the breeding trough, and by filling the breeding trough with pure oxygen, and after the rotifers grow to certain density, the central control system conducts pollution discharge and rotifer collection on the breeding trough, and recycles a rotifer culture solution. Through the culture device with dissolved oxygen and high-density food in water increasedand cyclic supply achieved