1. An Australian lobster breeding and hatching collection device comprises a parent shrimp breeding and hatching nest and a shrimp fry collector, wherein the parent shrimp breeding and hatching nest is composed of a plurality of plastic pipes fixed in parallel, and openings at two ends of the plastic pipes form an inlet and an outlet of the parent shrimp breeding and hatching nest, and the shrimp fry collector is in a pipeline brush shape; The device is beneficial to the formation of parent shrimp breeding and hatching nests, and has a hidden function. Male and female lobsters in the breeding period enter the plastic tube of the parent shrimp breeding and hatching nest to mate, which is not disturbed by the surrounding environment and is conducive to the smooth breeding behavior. The dense bristles of the shrimp fry collector also greatly increase the attachment area of the shrimp fry, so that the newborn shrimp fry can be attached to the shrimp fry collector in the shortest time, thus achieving the functions of protecting the safety of the shrimp fry, facilitating manual collection and reducing omissions.
2. An Australian freshwater lobster circulating water incubation system and its seedling raising method. The system includes a heat preservation shed, a reservoir, a sedimentation tank, a mechanical filter, a thermostat, an ultraviolet sterilization device, a biological filter and artificial flow simulating ecology, which can effectively improve the hatching efficiency, ensure that the parent shrimps are not attacked and interfered by other shrimps, and create favorable conditions for improving the hatching rate.