Fish fry grading selection pond

Abstract

The invention discloses a fish fry grading selection pond. The fish fry grading selection pond is composed of a fry culturing storage pond, a strip-shaped selection pond and a fry culturing pond, wherein the fry culturing storage pond and the fry culturing pond are respectively provided with an independent filtering circulating system, a water inlet pipe, a water discharge pipe, a poroid structure and a bottom opening, each bottom opening is provided with a net piece, a fish sucking pipe is arranged on the side wall of the fry culturing storage pond, the fish sucking pipe is provided with a fish sucking pump and a fish control valve, the fry culturing storage pond temporarily raises fries to be selected, the fry culturing pond is provided with a fish conveying pipe and a water control pipe, a net piece is covered at the top of the water control pipe, and the fry culturing pond is used for culturing the selected high-quality fries. The strip-shaped selection pond is supported by supporting pillars and is used for operation of fry selection. The upper portions of the fry culturing storage pond, the strip-shaped selection pond and the fry culturing pond are connected through poroid structures, and the bottoms of the fry culturing storage pond, the strip-shaped selection pond and the fry culturing pond are communicated through an underground pipeline. The fish fry grading selection pond is simple in structure, and brings convenience to fry grading selection. Due to the fact that controllable performance is high in the entire operation process, the fries do not die easily caused by oxygen deficit and mechanical injury. A fish control valve can effectively adjust the density of the fries in the strip-shaped selection pond, and the fry selection efficiency is improved.

Description

technical field [0001] The invention belongs to a technical device for cultivating fish fry. In particular, it relates to a convenient and practical pond for grading and selecting fish fry. Background technique [0002] Koi (Cyprinus carpio L.) belongs to Cypriniformes (Cypriniformes) Cyprinidae (Cyprinidae), Cyprinus (Cyprinus), Japan is called Nishikigoi. The most common red and white koi, Taisho three-color koi, and Showa three-color koi are called "Royal Sanjia" of koi. Koi are famous all over the world for their vigorous body, gorgeous colors, gorgeous markings, chic swimming posture, and docile habits. They are called "living gems in water" and "swimming works of art". This fish is a large and valuable ornamental fish that is bred by artificial hybridization of mutant carp strains. Its genes are highly mixed and its genetic traits are extremely unstable. The main ornamental value in the market is its color and stripes. The genetic mechanism of the pigment is not cle...

AI Technical Summary

Problems solved by technology

This fish is a large and valuable ornamental fish that is bred by artificial crossbreeding of mutant carp strains. Its genes are highly mixed and its genetic traits are extremely unstable. The main ornamental value in the market is its color and stripes. The genetic mechanism of the pigment is not yet clear. In actual production, some individuals with ornamental value must be regularly selected from millions of seedlings. Therefore, the most important thing in the seedling cultivation process of koi is seed selection.

But, at present, the research on the grading and selection pool of koi seedlings has not yet seen reports at home and abroad. Technicians can only put the seedlings to be selected into large pots and copy 10-20 tails to select with net copying. This method works It is cumbersome and can easily cause seedlings to die due to hypoxia and mechanical damage, which seriously affects the selection of high-quality koi, hinders the large-scale production of high-quality koi seedlings, and thus restricts the development of koi industry to a certain extent

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