Large-scale hatching system and method for schizopygopsis younghusbandi regan eggs in Tibet

Abstract

The invention provides a large-scale hatching system for schizopygopsis younghusbandi regan eggs in Tibet. The system comprises a production support and incubators, the production support is arrangedon the inclined ground, and a water outlet is formed at the lower side of the ground; a plurality of rows of incubators are placed on the production support, and a water outlet pipe with a valve is arranged above each incubator; and each incubator comprises an incubation barrel, an overflow groove, a flow guide groove and a water inlet pipe, the water inlet end of each water inlet pipe is connected with the corresponding water outlet pipe, the water outlet end of each water inlet pipe is inserted from an opening at the top of the corresponding incubation barrel, a water outlet is close to thebottom of each incubation barrel, and the overflow grooves surround the outer side walls of the upper ends of the incubation barrels. The hatching system is high in survival rate of hatched fish eggs,high in production efficiency and capable of achieving large-scale production in Tibet.

Description

technical field [0001] The invention belongs to the technical field of fish farming, and in particular relates to a large-scale hatching system for the roe of the Lhasa scutellaria in Tibet. Background technique [0002] Schizopygopsis younghusbandi Regan belongs to Cypriniformes, Cyprnidae, Schizothoracinae subfamily Schizopygopsis, and is distributed in the upper and middle reaches of the Brahmaputra River. , is a unique plateau fish in China. At present, the researches on the Lhasa nadibranchus mainly focus on feeding habits, early development, individual biology and population dynamics. In recent years, due to overfishing, the resources of Lhasa nudibranch fish have been greatly affected in some areas. In addition, the unscientific release habits have led to the invasion of alien species, resulting in changes in the survival pressure of plateau fish such as the Lhasa nudibranch fish. Coupled with the slow growth rate and late sexual maturity of the Lhasa nudibranch fi...

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Problems solved by technology

In this patent, fertilized eggs are placed in the hatching frame for incubation before the development of the sarcomere, which still has problems such as large footprint, easy death due to lack of oxygen, breeding of water mold, and huge workload when picking dead eggs; the water flow rate of the incubator is not easy to control , the flow rate is high, and the mortality rate of the fish eggs used for the hatching of the Lhasa nudibranch fish eggs is high; the water flow speed in the device is unstable, and the effect of rolling up and down is poor; the fish eggs are easy to overflow from the drain along the water flow

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