Aquaculture Winter Management Technology

In winter, aquaculture is basically in the rest period, which is the most leisure time in the breeding process. However, this does not mean that the work in this period is not important. If you do not pay enough attention to several tasks in this period, It will greatly affect the aquaculture benefits of the coming year, so aquaculture in winter should do a good job of the following tasks.

1, renovation, clear pond. For ponds that have already dried up water, remove excessive pond mud in a timely manner. The reinforcement and leak-filling should be carried out during winter repairs. After the thorough clearing ponds are disinfected, limed whole ponds can be used for sprinkling and dry ponds can be used for 75 kg/mu. Water 150 kg/mu.

2, and pond classification. Ponds for farmed fingerlings should be carried out as early as possible. Ponds should be used to classify various species and divide them into different fish ponds. This will facilitate the fishing of fish species in the future and will also reduce the mechanical damage of fish species.

3, fish species. For dried ponds in winter, fish species should be released early. In winter, stocked fish species are not easily damaged, transportation is safer, and the survival rate is higher. Fish species are sterilized when they are stocked, and they are usually dipped in 3 to 5% salt water for 5 minutes.

4, feeding feed. In winter, most farmers stopped feeding and thought that the fish would not eat at this time. In fact, this is a wrong practice. According to expert experiments, the water temperature is above 5 degrees, and most fish (except tropical fish) will feed. Therefore, it is still necessary to feed the feed in winter, it is best to feed concentrate feed, but the amount should not be too much, sunny and more investment, less rainy days or not vote. For example, fertilizing fish should also determine whether or not to apply fertilizer according to the fatness of the water. This is very beneficial to fish winter.

5, sowing ryegrass. Green grass is the best feed for herbivorous fish. Breeding grass can save the cost of breeding. In the winter, good ryegrass can solve the feed of grass and squid in the first half of the year. Grass can be sown in several batches as needed to better ensure the quality of the grass.

6, shut full of water. In the winter, the fish’s activities decreased, and basically they stayed at the deepest level. Therefore, the water in the pond should be filled as much as possible to reduce the influence of the outside world on the fish and save the energy of the fish.

7, fish disease prevention. In winter, fish disease is basically absent, but there are still fish diseases such as bacteria, parasites, and fungi. Although it will not cause a large number of fish to die, it will greatly affect the overwintering of fish and will also affect the market value of fish. Therefore, such as Fat fish disease must be treated with drugs.

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