How to manage the fishing affairs in June

June is the best time for aquaculture animals to eat a lot and grow rapidly, and at the same time, it is also the stage of epidemic outbreak of aquaculture animals, so the fishing in June should focus on feeding and disease prevention.

Throw and feed

⑴ controls the amount of feeding. The proportion of daily feed intake to the body weight of aquaculture animals in the pond is as follows: common feed, such as rapeseed cake, soybean meal, etc., is 6%-8%; pellet compound feed is 2%-4%; feeding carnivorous fish such as mandarin fish and sea bass directly to small fish and shrimp is 1%-2%; green feed is 8%-10%. ⑵ ensures feed quality. Animal feed should be fresh and palatable, basically free of pathogenic bacteria. Formula feed requires reasonable formula and comprehensive nutrition. Green feed requires green, tender and refreshing food. ⑶ science feed. Adhere to the four principles, according to the weather, water quality and aquaculture animal activities to flexibly control the amount of feeding.

Divert water

⑴ regularly uses quicklime or other water cleaners to clean the aquaculture water to kill harmful bacteria and keep the transparency, dissolved oxygen and pH value of the water in a suitable state. ⑵ regularly uses microecological agents to regulate water quality. The commonly used microecological agents are photosynthetic bacteria, Bacillus subtilis, Lactobacillus, EM and so on. ⑶ flushes and changes water regularly to keep the aquaculture water body fat and tender all the time. ⑷ uses aerator to keep the dissolved oxygen in water above 5mg/l all the time.

Disease prevention

⑴ implements the policy of giving priority to prevention and combining prevention with prevention, and comprehensively does a good job in the prevention of fish diseases, including the selection and release of high-quality seedlings, and thorough disinfection of water, feed, food farms and tools. ⑵ prescribes the right medicine to the case and uses the medicine safely. The occurrence of fish disease was diagnosed in time, the cause was determined, and high-efficiency and low-toxic drugs were selected for treatment.

Captive cultivation

Make full use of the three-dimensional space of aquaculture waters and the principle of symbiosis and mutual benefit of farmed animals to carry out multi-variety and multi-specification three-dimensional mixed culture. ⑴ mixed culture of crab and shrimp. In the middle and last ten days of June, 20, 000 ~ 30, 000 shrimp seedlings were placed in crab ponds per mu. ⑵ fish and soft-shelled turtle mixed culture. In the conventional fish culture pond, the young soft-shelled turtles cultured in the greenhouse were moved out of the greenhouse and put into the pond in the first ten days of June, with 30 ~ 50 turtles per mu. ⑶ mixed culture of crab and fish. In the pond, some of the mandarin fish species bred that year or other carnivorous fish species were released in early June, with about 50 fish per mu. ⑷ mixed culture of shrimp and shellfish. Meretrix Meretrix or Sinonovacula constricta, green clam, mud snail and so on are released in shrimp culture ponds, and the stocking amount depends on the level of breeding and management and the conditions of shrimp ponds. Fish species are raised in ⑸ conventional fishing ponds. Grass, silver carp, bighead carp, crucian carp and other adult fish ponds can raise some summer flowers or one-year-old fish species in June, and rotation can be carried out if conditions permit.

Breeding

The main work is to do a good job in the cultivation of mandarin fish, @ # @ 243 fish, freshwater Pomfret, catfish, spotted forktail, puffer fish, long snout fish and traditional aquaculture species, as well as crab species.