Summer feeding management

Summer is a season of fish growth and it is also a season of fish diseases. Doing a good job of raising and managing summer adult fish is extremely important for improving the quality of breeding and increasing the breeding efficiency.
Feeding and fertilizing should be changed every day during the summer feeding for noon before and after noon feeding, bait to cakes, rice bran, wheat bran, pellets and other feed-based feed, plus some fresh palatability of grass, leaves and duckweed and so on. If the water quality is not fat, a small amount of fertilization should be used to prevent the pond from over-fatering and cause dead fish. Feeding grass-feeding fish to feed green feed, in July, 40-50 kilograms per 100 kilogram fish body weight, and 65-80 kilograms in August; Feeding fish to feed concentrates, 4-5 shots per 100 kilograms of body weight per day Kg; The amount of feed, such as snails and clams, can be eaten in 7-9 hours. The transparency of Tangxia water in summer should be controlled at about 30 cm. If the pond is too thin, more green manure and inorganic fertilizer should be applied. Green manure should be sun dried and mixed with a certain amount of manure before it is applied. Heaps in shallow places near the pond, presses stones or mud, and sinks into water. Turn it around every 3-5 days to allow it to fully decompose and then decompose. Remove the residue, and then add new materials, each applying about 100 kg of green manure. Inorganic fertilizer is applied every 5-7 days, 1 kg of urea per mu, or 1.5 kg of ammonium sulfate plus 1-1.5 kg of superphosphate, and the inorganic fertilizer is dissolved in water before application. Food poisoning, and then evenly spilled water. The frequency and amount of fertilization depends on the weather, water color, and breeder. The sunny days are suitable for more or less, and the rainy days are less or less. When the water color is light yellow or light green, it is applied in multiple ways. When the oil is greenish or reddish brown, little or no application is made. White plover, tilapia, white fleas, and other facilities, grass, herring-based pond less Shi.
Adjust the water quality First, rush a new water every 10 days or so, and add 15-20 centimeters of water each time. If the water quality deteriorates, 1/3-1/2 of the water should be discharged first and then fresh water. The second is about 10 days or so, in the sunny afternoon noon stir the bottom of the pond once, the stirring area is less than half of the pond. The third is the interval of 20-30 days, with 15-20 kg of quick lime dissolved in water per acre of water after the spill.
The prevention and treatment of fish diseases will be observed every morning and evening, and the weeds in the pond will be removed. Before and after dawn, fish are susceptible to oxygen deficiency floating heads. If the fish has floating heads, aerator or fresh water should be added immediately. If there is no oxygen-increasing equipment, it is possible to sprinkle salt-added yellow mud (10 kg of yellow mud per acre of water surface, add water to a paste, add 10 kg of salt and dilute) to the pond, and the effect is also very good. But be careful not to use bleach, otherwise it will speed up the death of fish suffocation. About 15 days or so, 250-300 grams of bleaching powder and 125 grams of ferrous sulfate were splashed on the edge of the pond and on the food table to prevent bacterial skin and gill disease. According to the weight of each 10 kg of fish with 0.5 kg of garlic, chopped and mixed with bait to feed fish, feeding 2-3 times a month, each feeding for 3-5 days, can prevent fish enteritis and other diseases.

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