Vitamin is a kind of trace organic substance that humans and animals must obtain from food in order to maintain normal physiological functions. It plays an important role in the process of human growth, metabolism and development. Vitamins in the body neither participate in the formation of human cells, nor provide energy for the body.
Scientific studies have found that at least 30 different compounds are considered "Vitamins", of which more than 20 vitamins are known to be necessary for biological health.
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Through the practice of fish farming in the past few years, I believe that the key to fish farming is the word "Qin" and "Qiao". Fish farming is doing a good job of doing four things. One diligence is to check the water quality of fish ponds. As the saying goes: broth white water white fish. This means that the quality of fish ponds directly determines the growth of fish. The water quality of fish ponds changes with temperature. In the early, middle and late evenings as well as on sunny and rainy days, the pH and dissolved oxygen of the fish pond are different. According to the different changes in the water quality of fish ponds, increase or decrease the amount of fertilizer and feeding, add or replace fresh water, and increase oxygen at a proper time. Erqin is diligently checking the status of fish foraging. Feeding of fish is generally performed in terms of quality, quantity, timing, and fixed point. There are four main benefits to implementing the “Four Setsâ€: one is to save feed; the other is to avoid uneven feeding of fish; the third is to ensure that the bait is fresh; and the fourth is to facilitate the observation of fish growth and lesions. Changes in the daily intake of fish are the basis for adjusting the amount of feeding. It is also a sign of fish disease and deterioration of water quality. Sanqin is feeding fresh and tender grass. The feed for fish should be fresh and tender. Feeding fresh feed can reduce disease; it can promote fish food consumption; and it can reduce production costs. Fourth Qin is to study hard to ask more. Fish farmers must learn to write learning experiences and keep a fish diary. Constantly sum up and innovation, improve their own level of culture. In addition, in the production of fish, it should also pay attention to "Four Qiao." Coincidence is to make a plan for discharge. Stocking plans should be market-specific. Do a good job selling market surveys. To analyze which kind of fish is good for selling, what kind of fish is sold. What season to sell what fish should be aware of. Two coincidences are skillful stocking densities. Fish has upper fish, middle fish, and lower fish. The proportion of stocking at all levels must be properly matched. In order to eat the fish in the upper layer of the upper layer, the fish in the bottom layer of the middle layer can eat. Only in this way can we make full use of the water body space, bring into play the capacity of the water body, and increase the utilization of feed. Sanqiao is a clever amount of production. There are many factors and ways to increase production. For our current conventional farming methods, the first is to transform the low-standard fish ponds so that the depth of the fish ponds reaches about 3 meters; the second is to set up aerators, which is generally suitable for setting 8-10 mu; third is to increase adult fish Number of fishing. Do round catch. Four clever is Qiao feeding famous fish. I have no people, I have excellent people, I am fine people. Looking at the current fishery market, fine and elite fish are still the mainstream of development. There are six advantages to the development of famous fish: one is the fast growth rate; the second is the low incidence rate; the third is the high unit yield; the fourth is the delicious meat; the fifth is the broad sales market; and the sixth is the economic profit. However, the breeding of famous fish has high technical requirements, large economic investment, and unpredictable sales market. Should be stable and steady, and do what it takes.