CATDOLL : CATDOLL: How to deal with insufficient oxygen in the water when raising rainbow trout in winter?

There are four things to do when rainbow trout lack oxygen in winter: first, control the fish breeding density to ensure sufficient dissolved oxygen and avoid water deterioration; second, feed scientifically and feed in appropriate amounts to prevent water from being over-fertilized and polluted; third, fish at the right time to reduce breeding density and reduce water load; fourth, use an aerator to increase oxygen or use a water pump to pump water for oxygenation, or use oxygen in oxygen cylinders to oxygenate net cages and high-density fish ponds through plastic pipes.

Speaking of rainbow trout, everyone may be familiar with it. It is a relatively popular breeding project with great nutritional value. The most important thing is that this kind of fish has very few bones and a relatively light fishy smell. It is a kind of fish that many consumers prefer. For farmers, rainbow trout also has many advantages. Its growth cycle is relatively short and it is listed on the market relatively quickly, so it is also more popular in the market. It is precisely because of these breeding advantages that more and more farmers are raising rainbow trout. However, although rainbow trout breeding is simple, it also brings some unfavorable problems. So what problems must be paid attention to when raising rainbow trout?

Rainbow trout has high requirements for feed. Usually, the shape of the feed is also helpful for hunting. If the feed particles are large or small, it will affect the taste of rainbow trout. Especially when hunting, if the particles are large, it is easy to have a great impact on rainbow trout. Therefore, when feeding, the type of feed fed at each stage is completely different. Try to choose the appropriate feed type according to the eating habits of rainbow trout.

If the rainbow trout is large in size but the bait is too small, the bait will sink directly to the bottom of the water and the rainbow trout will not be able to eat normally. If the rainbow trout is small but the feed is too large, the rainbow trout will not be able to eat normally and the feed may even melt directly in the water, resulting in low feed utilization during feeding, which will also affect the growth of rainbow trout and bring greater costs to farmers. When the dissolved oxygen content in the water decreases, it is also very unfavorable for the growth of fish, especially rainbow trout, which has a relatively high requirement for dissolved oxygen. Once the oxygen level decreases, various digestion and eating problems will arise.

Especially during the growth period, the lower dissolved oxygen content in the water will also cause the rainbow trout to have a poor appetite and even bring more other problems. Some rainbow trout have digestive problems and cannot digest and absorb food well after eating, which leads to a slow growth rate and waste of feed. If the dissolved oxygen content is more appropriate, the growth of rainbow trout will return to normal speed, and the use and digestion of feed will remain stable.

Therefore, in the entire breeding process, dissolved oxygen is definitely a very important aspect. It is also the key to increasing the probability of breeding success. The most important thing is to improve the quality of fish meat and increase the output and value of rainbow trout. Secondly, since rainbow trout is a cold water fish, it has relatively high requirements for water temperature. Once the water temperature rises, it is extremely unfavorable for the growth of rainbow trout.

Therefore, it is best to keep the water temperature at around 25 degrees. If the water temperature exceeds this, the growth of rainbow trout will become unfavorable, and they may even stop eating. In the hot season, we should also pay attention to using appropriate methods to cool down. However, it should be noted that ice water cannot be used directly to cool down. It is best to use pumping to cool down appropriately. It is best to keep the water in the pond at around 18 degrees, so that the growth rate of rainbow trout will also become very fast.

When feeding rainbow trout, the daily feeding amount should not be too much. If it is too much, it will easily lead to feed waste and cause some feed to remain in the water, which will have a certain harm to the water quality in the long run. However, if the amount of feed is relatively small, the rainbow trout will be in a state of not being full. Long-term lack of prey will cause the growth rate of rainbow trout to slow down. Therefore, in order to make the growth of rainbow trout stable, it is necessary to pay attention to the amount of feed fed and take some measures to promote its growth fundamentally.

Of course, we should also pay attention to the proportion of feed, and it is best to increase the amount of protein in the feed. And every once in a while, we should feed rainbow trout separately, feeding fish of different sizes separately, which can promote the basic growth rate of each fish and avoid large and small fish growing together, which will lead to food competition.

In short, there are many issues that need to be paid attention to when feeding rainbow trout. In addition, this fish is a new type of breeding project. Although the market prospects are good, many farmers' technical experience is not very mature. Often, various unfavorable problems will occur during feeding, leading to feeding failures, etc. Therefore, if you want to enter the field of rainbow trout feeding, don't forget to master some related technologies in advance. This is the key. Only when the technology is mature and the basic management experience is understood, the growth of rainbow trout will become faster and more stable, and the farmers' income will be guaranteed.

Regarding the problem of insufficient oxygen that you mentioned, you can buy an oxygen concentrator to supply it on the first day. I can also sprinkle some medicine to supplement it, but in the end, Yu still has to be active.

If this is raised in a pond, the snow on the ice should be cleared so that the sunlight can shine into the water and increase the oxygen content of the water.

If there is not enough oxygen, you can supplement it by injecting oxygen