According to the planned yield, the yield of fish should be determined according to the pond conditions, supporting conditions and technical level, and it is appropriate to control it at 700 kg ~ 1000 kg per 667 square meters.
2. In the whole breeding process, choose high-quality feed to increase the self-resistance of fish, reduce fish excreta and promote the healthy growth of fish.
On the one hand, we should choose high-quality feed with moderate protein, good amino acid balance, excellent processing technology and low feed coefficient; On the other hand, control the feeding amount, so that the fish can eat 80% full every day.
3. Apply Shui Mei Bio-fish Fertilizer two or three times a month in high temperature season to quickly remove harmful substances such as hydrogen sulfide, ammonia nitrogen and organic acids from water and improve water quality. At the same time, yeast and lactic acid bacteria in Shui Mei biological fish fertilizer can form intestinal barrier in aquatic animals, inhibit bacterial reproduction, improve disease resistance, enhance immunity and reduce morbidity and mortality. It can also promote the growth of phytoplankton with good effect.
4. In the main growing season of fish, turn on the aerator at noon on sunny days.
Through the rotation of the aerator, the thermal stratification phenomenon of the aquaculture water body is broken. Send the upper water with high dissolved oxygen to the lower water, reduce the oxygen consumption of the lower water, and repay the oxygen debt in time. Although the oxygen content in the surface water is temporarily reduced, it can also produce oxygen through photosynthesis of phytoplankton, so that the dissolved oxygen in the upper water can reach saturation. Improve the oxygen content of the whole aquaculture water body and reduce the production of toxic substances such as hydrogen sulfide, ammonia, nitrite and organic acids.
5. Apply Shui Mei biological fish fertilizer two or three times a month in high temperature season.
Quickly eliminate harmful substances such as hydrogen sulfide, ammonia nitrogen and organic acids in water, and improve water quality. At the same time, yeast and lactic acid bacteria in Shui Mei biological fish fertilizer can form intestinal barrier in aquatic animals, inhibit bacterial reproduction, improve disease resistance, enhance immunity and reduce morbidity and mortality.