Paramisgurnus dabryanus breeding method in autumn and winter

Abstract

The invention discloses a paramisgurnus dabryanus breeding method in autumn and winter, wherein three kinds of spawning induction drugs are compounded to achieve optimal spawning induction effect, andneedle injection mode is used to quickly realize the estrus of parent dabryanus so as to obtain high-quality fertilized eggs, during the hatching process of the fertilized eggs, (microtube oxygen increasing) hatching pond is used for hatching with still water, so that early egg membrane breaking caused by hatching with flow water, which influences the hatching rate, is avoided, the constant temperature water and the electrochemical water are used as hatching water before hatching, the electrochemical water with proper concentration purifies the impurities in the water through physical modes of electric flocculation and ionization, bacteria and parasites are killed by generated strong oxidizing substances instead of using chemicals, which provides an ideal sterile environment for the hatching of the fertilized eggs, and greatly reduces the cost for sterilization and disinfection of the water in the hatching process, the breeding method has the advantages of simple process, strong operability and low cost, production of two seasons in one year can be achieved, seedlings can be effectively supplied, and economic benefits of farmers are increased.

Description

technical field [0001] The invention relates to the technical field of aquaculture, in particular to an autumn and winter breeding method of the paraloach. Background technique [0002] Paraloach, also known as Taiwan loach, is widely inhabited in various water bodies, among which there are many still waters or slow-flowing waters rich in plant debris and silt. It has strong adaptability to the environment and has the function of intestinal wall respiration. , can directly swallow air when the dissolved oxygen in the water is insufficient, and has a mixed diet. It feeds on aquatic insects, small invertebrates, plant debris, algae, etc., with fast growth and large individuals. [0003] Due to the characteristics of fast growth, short breeding cycle, easy daily management and operation, high yield and good benefits, and the increasing demand for loach in domestic and foreign consumer markets, more and more farmers join in In the breeding team of the large scale loach, it also...

AI Technical Summary

Problems solved by technology

[0005] At present, there is no systematic and standardized operation introduction for the off-season breeding of paraloach in autumn and winter. At the same time, the egg membrane of loach in autumn and winter is thin and easy to rupture, which affects the survival rate of off-season breeding. At the same time, the water quality of breeding Guarantee has also become a difficult problem for farmers. In the process of hatching loach eggs, there are occasional problems such as low hatching rate and survival rate and poor vigor of loach seedlings caused by zooplankton and aquatic insects represented by bacteria, sword water fleas and water fleas. According to reports, under the dual goals of grasping quality and cost, it is impossible to achieve efficient off-season breeding of loach