A breeding technology for a loach

Abstract

The invention belongs to the technical field of aquatic product breeding and relates to an artificial large-scale breed loach fry growing method, wherein advantages of early fry emergence, high fry growing rate and robust fry are reached, the breeding output of farmer is improved, the breeding cost is reduced, and the breeding profit is increased. The breeding technology includes four steps: the temporary rearing of the loach used for reproduction, the processing of an oviposition hatching pool, spawning induction hatching and fry growing management. The technology has advantages of early hatching and fry emergence, high fry rate, strong fry physique and high survival rate after growing. The fries are provided on a large scale, the fry requirements of breeding factories are satisfied on alarge scale, the breeding cost is reduced, and the production environment is friendly.

Description

Technical field: [0001] The invention belongs to the technical field of aquaculture, and relates to a method for artificially cultivating loach seedlings on a large scale, in particular to a technique for cultivating loach. Background technique: [0002] Loach is a small bottom-dwelling fish. In the middle of last century, loach was a low-value fish that could not be put on the table. Because of its tender meat, delicious taste, and especially rich nutrition, loach has become more and more popular among consumers. Because of its nutritional and health benefits Notably, it has become a commodity in high demand in international markets such as South Korea and Japan, and it is also one of China's main export aquatic products, so the market price has increased greatly. Because loach farming is relatively easy, it can be cultured alone, and the unit output of high-density culture can reach more than one meal. It can be used for polyculture, paddy field cultivation and lotus root ...

AI Technical Summary

Problems solved by technology

[0002] Loach is a small bottom-dwelling fish. In the middle of last century, loach was a low-value fish that could not be put on the table. Because of its tender meat, delicious taste, and especially rich nutrition, loach has become more and more popular among consumers. Because of its nutritional and health benefits Notably, it has become a commodity in high demand in international markets such as South Korea and Japan, and it is also one of China's main export aquatic products, so the market price has increased greatly. Because loach farming is relatively easy, it can be cultured alone, and the unit output of high-density culture can reach more than one meal. It can be used for polyculture, paddy field cultivation and lotus root pond cultivation, etc. Loach has fewer diseases, and the bait requirements are relatively extensive, which improves the breeding motivation of loach farmers. However, the cultivation of loach seedlings is still in a relatively lagging state. At present, the soil method is generally adopted. Seedlings, semi-natural seedlings are difficult to meet the needs of mass production. Seedlings have become the key to restricting loach farming. How to adopt industrialized and large-scale mass production of loach seedlings so that they can emerge early and grow large-scale seedlings in the same year. And the characteristics of high seedling rate, strong seedlings, and high survival rate during cultivation, so as to meet the needs of large-scale farming, are the key problems that the loach farming industry needs to solve urgently