The reason why grass carp swim crazily after eating

Grass carp (Ctenopharyngodon idellus) is one of the common freshwater fish, but in recent years, a behavior of grass carp has been perplexing aquaculture. The main feature is that part of the head of grass carp protrudes from the water after eating, and then swims in a straight line for several hours. So what is the cause of this? Let's take a look.

1. Hypoxia

A large number of grass carp are concentrated in a narrow area when they are fed, and the dissolved oxygen in that area decreases sharply in a short period of time. After eating, some grass carps with serious hypoxia are confused and running everywhere. If the dissolved oxygen drops sharply in a short period of time at the feeding point, it is possible to turn on the aerator and supply oxygen in time, then this kind of phenomenon can be reduced.

2. Hepatobiliary problems

At present, with the massive application of drugs and the use of high-density bait and high-protein feed, the problem of liver and gallbladder of fish has not been optimistic. In the process of grass carp culture, the problem of liver and gallbladder has been perplexing everyone, directly affecting the growth of grass carp and economic benefits. Therefore, some people think that this kind of behavior may have something to do with abnormal liver and gallbladder.

3. The feed is too dry

At present, many grass carp feed is mostly high-fat, high-protein feed, although this is in line with the nutritional requirements of grass carp, but if the feeding intensity is high, so grass carp can not bear to eat for a long time. Secondly, the feed is too dry, grass carp palatability is poor, this phenomenon is more obvious in Guangxi, Guizhou and other places, especially in cage culture.

4. Preventive measures

In the final analysis, the behavior of the above grass carp is not adapted to the current culture environment. Therefore, in the cultivation of grass carp, we should have sufficient water source, good water quality, smooth drainage and good ecological environment. When choosing fish fry, we should also choose healthy and lively high-quality fish species, which are cultivated without pollution, and the quality meets the relevant standards.

The above is the introduction of the reasons why grass carp swim wildly after eating. I hope it can help you. If you want to know more about it, please follow us.