Fattening and bred. Before winter, it is necessary to strengthen the fattening and breeding measures to enhance the fish's ability to resist cold and disease. Pre-winter (autumn), during the winter, it is recommended to feed the full-price nutritional feed, which is the basis for ensuring that the fish eat full nutrition. Only eating full-priced nutritional feed can ensure that the accumulation of vitamins and inorganic salts (minerals, etc.) in fish can meet the needs of life-sustaining activities.
In this way, even if the temperature of the water drops, the food intake of the fish will be affected. However, due to the accumulation of various nutrient elements in the fish, it is beneficial to enhance the ability to resist cold, and it can also help the winter.
Doing wintering work well.
(1) Deepen the pool water insulation and increase the temperature, and those who have conditions will deepen to 2.5-3 meters or more, and the deeper they will be, the more thermal insulation will be.
(2) Appropriately release organic manure and livestock manure fertilizers that have been fermented, put 500 kilograms per half-monthly, maintain richer fertilizers and water, and facilitate the cultivation of phytoplankton for photosynthesis and oxygenation, and fertilizer and water insulation.
(3) Take 60-70 square meters of anti-frost shed at the deepest point of the leeward sun of the pond, and use the bamboo sticks to clamp the yak stick on the 3-4 inch thick off the water 20-30 centimeters to shelter against the cold. It is also possible to stack turf mud usually prepared around the base of the pond, pay attention to weather broadcasts, point the turf and smoke from the cold wave, form thick smoke above the pond base, and dissolve the frost water, which is also very effective to reduce fish Loss of death from freezing.
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