Knife loach is a common freshwater fish in our countryside, which is distributed in most parts of our country. Its slender body is very similar to that of Misgurnus anguillicaudatus, so it is also called Spinibarbus anguillicaudatus, but it is very different from Misgurnus anguillicaudatus because it is slender and streamlined, with 16 barbs hanging on its back, while Misgurnus anguillicaudatus is smooth and harder to touch.

With the influence of the environment and the change of climate and weather, this kind of common species in the river as a child is rare now. On the one hand, it is found that the loach is rich in nutritional value and delicious. With the improvement of living standards, the price of the loach is rising, and the price of the wild loach is hundreds of yuan, which makes people stop looking at it. So since the price of the loach is so good, why is it rare to see anyone breeding it?

First of all, Misgurnus anguillicaudatus is different from other freshwater fish, because it has high requirements for water quality and is usually active in unpolluted rivers and streams. Once there is too much organic matter in the water, pesticides and herbicides remain, Misgurnus anguillicaudatus will easily die of hypoxia due to insufficient dissolved oxygen, which is the main reason why there are fewer and fewer wild Misgurnus anguillicaudatus nowadays.

Secondly, although the market price of loach is high, the audience market is not large, and the high price leads to few people consuming it. If there is no stable sales market, it is difficult to make a profit from breeding loach! On the other hand, the culture cycle ratio of loach is long. Usually, the loach we see is about three or two. If it can reach more than half a catty, it belongs to loach. It usually takes four or five years to grow to a catty. However, the investment in loach culture is relatively high, and the fry is relatively expensive because of scarcity, and the sales market is not stable enough, and the growth cycle is so long.