Air type fish cleavage generating device and culturing incubation method in cleavage period

Abstract

The invention relates to an air type fish cleavage generating device and a culturing incubation method in a cleavage period. Cultured fishes incubated by drug stimulation and temperature compensation shock method have many problems that the incubation rate is low; the deformity is prone to occur; the pressure is increased; the equipment is too heavy; the operation is complex; the cleavage generating degree of fertilized eggs is difficult to control and the mortality rate is high. The device comprises a columnar cleavage chamber (2); a water pump (16) is arranged at the middle position of the bottom surface of the columnar cleavage chamber; the upper end of the water pump is provided with an upper water pipe support (3); the lower end of the upper water pipe support is provided with a water filtering partition plate (15) in a sleeved mode; the upper end of the upper water pipe support is provided with a filtering layer (13) in a sleeved mode; the fertilized eggs (14) are arranged at the space among the columnar cleavage chamber, the water filtering partition plate and the filtering layer; the top end of the upper water pipe support is provided with a water spraying pipe (12) in a sleeved mode; a positioning seal cover (4) is placed above the columnar cleavage chamber; a ring of expansion rubber seal ring (5) is arranged at the side surface of outer portion of the positioning seal cover. The invention is applied to the air type fish cleavage generating device and the culturing incubation method in the cleavage period.

Description

[0001] Technical field: [0002] The invention relates to a pneumatic fish cleavage generating device and a seedling hatching method at the cleavage stage. [0003] Background technique: [0004] In the fish artificial hatching production project, fertilized eggs are produced by shocking fertilized eggs to produce cleavage, and ideal polyploid offspring are obtained after hatching, and the offspring of these selected fish species are then selected to form growth advantages, In order to obtain better economic and social benefits for commercial fish with superior quality, conventional fertilized egg shock methods include drug stimulation, temperature compensation, and pressure increase method. , low hatching rate, prone to deformities, increased pressure The commonly used shock method for fish fertilized eggs, increased pressure equipment includes screw press, oil press type, in production practice, the equipment is too heavy, the operation is complicated, and the pressure in the...

AI Technical Summary

Problems solved by technology

[0004] In the fish artificial hatching production project, fertilized eggs are produced by shocking fertilized eggs to produce cleavage, and ideal polyploid offspring are obtained after hatching, and the offspring of these selected fish species are then selected to form growth advantages, In order to obtain better economic and social benefits for commercial fish with superior quality, conventional fertilized egg shock methods include drug stimulation, temperature compensation, and pressure increase method. , low hatching rate, prone to deformities, increased pressure The commonly used shock method for fish fertilized eggs, increased pressure equipment includes screw press, oil press type, in production practice, the equipment is too heavy, the operation is complicated, and the pressure in the shock chamber is often unstable. , Sealed oil leakage, hypoxia in the shock chamber, large volume changes during the cleavage process, easily damaged fertilized eggs, difficult to control the degree of cleavage of fertilized eggs, and high mortality

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