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Fish ponds need vitamin supplementation, 6 grams of oxytetracycline tablets and 3 grams of vitamin C tablets are used per cubic meter of water body, the tablets are ground and mixed, mixed evenly, and fed twice in the morning and afternoon. Feed half the amount from 2 days, and continue to feed for 3 days.
The water quality control technology of aquaculture ponds is based on the pond ecology. According to the annual and seasonal variation laws of ponds and water quality, comprehensive artificial control of aquaculture water quality is carried out in the process of aquaculture.
The water temperature is low in winter and early spring every year, and the ponds can be sorted out, including dry ponds, freezing and drying, and dredging. During the breeding process, most of the nitrogen is removed, while the carbon is synthesized into humus and retained. In dry ponds and sun-dried ponds, aerobic microorganisms need a lot of nitrogen. Greatly increase the decomposition rate of organic matter, improve the effect of drying ponds, and shorten the drying pond time. For overwintering aquaculture ponds, the water level should be kept high in winter, the ice should be broken or the snow on the ice should be removed in time, and the dissolved oxygen content in the water should be maintained and improved. Change the pond water in time in early spring to improve the water quality of aquaculture.
At the same time, adding new water in early spring can also play a role in fertilization, because after various organisms die in winter, their nutrients are released into the water, which increases the nutrient content in the water. Adding water to the pool water can supplement nutrients and promote plankton reproduction. , increasing the amount of dissolved oxygen and prey organisms in the water. When stocking fish fingerlings in spring or autumn, an appropriate amount of filter-feeding fish such as silver carp and bighead carp should be raised to adjust and improve the water quality of aquaculture.
From spring to early summer (March to June), the water temperature continues to rise, and from autumn to early winter (September to November), the water temperature continues to drop. In these two alternating seasons, the water temperature fluctuated at 15-25°C or slightly higher, the temperature difference between day and night was large, the upper and lower convection exchange of the water body was good, and the water quality was in a benign change. According to the different main objects, proper topdressing and feeding can form good water color and water quality. Therefore, these two alternating seasons are the seasons in which farmed animals grow faster, and are also easy to spread diseases and harmful organisms. It is a season that is easy to grow. Therefore, in these two periods, especially in the crossover stage, it is particularly important to control water quality by injecting new water frequently and using symptomatic drugs to prevent diseases.
From July to August in summer, the water temperature is high, often fluctuating around 30°C, and the temperature difference between day and night is small, and the convective exchange between the upper and lower water bodies is poor. The phenomenon of factor stratification is obvious, and the ecological conditions of the pond are very poor.
In addition, the rapid growth of animals in the spring, the increase of the load of the pond, and the accumulation of nutrients in the pond, it is easy to form poor water quality and color during this period. In the event of sudden changes in weather (low air pressure, hot days, thunderstorms), the static state of the pond water will be broken, the water body will exchange violently up and down, and the water quality will be extremely deteriorated.
Therefore, it is necessary to manually control the water quality in high temperature seasons. First, stop using organic fertilizers and use chemical fertilizers smartly when fertilization is needed. Second, frequently inject or replace new water regularly, and urge the upper and lower water layers. Third, use an aerator to stir the water layer to increase oxygen, especially in high temperature and muggy weather, dawn and noon on sunny days, the aerator should be turned on to prevent floating heads or flooding of farmed animals. Fourth, cultivating an appropriate number of aquatic plants in the pond can absorb nutrients in the water body, purify and improve the water quality, and at the same time, it can block sunlight, reduce the temperature of the pond water, and facilitate the growth of animals.
So if you have a fish pond, you can learn the fish production line first, like the feed crushing machine, and fish feed extruder machine which will be used in the line.
