I. Pond conditions and preparation
Pond conditions
It requires sufficient water sources, good water quality, convenient drainage and drainage, guaranteed power supply, and convenient water and land transportation. Each aquaculture pond area is generally 10 mu to 20 mu, and the water depth is 2m to 2.5m. It is best to support a small pond of 1 to 2 and 3 mu to facilitate the cultivation of fish species and fish stocks or adult fishes. The wall of the pond is required to be solid and non-leaking, which is more than 0.5 meters above the historical maximum level.
2. Facilities
Equipped with a 3 to 5 ton hanging pulp boat, used to collect aquatic plants and transport fish species, natural fish into the natural waters. Conditional installation of a 3-kilowatt aerator per 5 mu of water.
3. Pond clearing
After the winter and spring dry ponds, excavate too much silt in the ditch so that the silt layer is maintained below 10 cm, preferably about 20 days after freezing and sun exposure. Before the stocking, 75 kg of lime and 25 kg of tea seed cake were dissolved and soaked in the whole pool after soaking. The basal fertilizer was applied after disinfection, and the water was filtered.
Second, breeding technology points
1. Seed stocking
Grass carp rearing weight of 500 grams, 250 grams and 25 grams of three specifications, acre put 150 to 750 or so; group head maggot rearing weight of 100 grams and 50 grams of two specifications, acres put 300 to 350; Carp rearing weight 150 grams, 100 grams and 25 grams of three specifications, acres of 1000 to 1200 tail, carp, squid ratio of 6 to 8:1; heterotrophic silver carp stocking 50 grams and 25 grams of two specifications , About 1000 acres of mu; squid rearing fish species weighing 50 grams, about 100 mu.
2. Feed source and distribution
The perennial alfalfa, clover, and annual ryegrass, sudangrass and bitter leeks are planted on the edge of the pond to produce high-yielding pasture varieties. Planting time, rinching, and management must be well connected, mainly addressing the shortage of feed in early spring and late autumn. From May, the boat can be used to collect natural fodder such as Vallisneria, Malania, duckweed and other green feeds, as well as terrestrial green feed, such as vegetable leaves, melon leaves, and tender vines. There are chicken manure, duck dung and pigs, cow dung, etc., and there are conditions to raise pigs and raise chickens at the side of fish ponds. Each year, aquifers require 26,000 kilograms of green feed (including 70% of aquatic plants and 30% of terrestrial grasses), 2700 kilograms of various manures (50% of the total weight of chickens and pig manure in terms of wet weight), and another need for cakes. Concentrates such as bran are 500 kg to 600 kg.
3. Fertilization and feeding
The basal manure usually applies manure or 200kg to 500kg of compost, which is best spread to the bottom of the pool. The manure is used to stir the fertilizer in the pool mud to maintain a long period of fertilizer efficiency. Top dressing should be based on the season, water temperature, color and transparency.
Take a small amount of the principle of diligence, the fertilized material must be fermented. Adhere to timing, positioning, qualitative, quantitative feeding methods, green feed generally 2 to 3 pm feeding, eat before the evening. Fine bait is supplemented in this breeding mode, and it can be considered as a good apology for the natural food and green feed in the water, so that the fish can eat well, eat enough, and eat well.
4. Feeding management
Every morning and evening, the patrols were conducted once and found that the situation was taken early. The water level is based on the principle of “Spring Light, Summer Full, and Qiu Qinâ€. Water is usually added from 3 days to 5 days, and water is added once a day during the high temperature season from July to September. Each time, the amount of water is 20 cm to 30 cm to maintain the water quality. Fertilizer, live, tender and cool requirements. There is an aerator of the Tangkou, from June to September every day or every other day at noon to boot 1 hour, when the fish floating head is severe early morning boot to sunrise.
5. Disease prevention and treatment
Strictly sterilize the fingerlings to prevent the entry of the fingerlings into the pond. Feeding baits requires freshness, palatability, and not deterioration. Disinfect the water body regularly and strengthen the management of the water intake to prevent the entry of predator organisms and sewage. The fish season is treated with drugs and baits for prevention.
6. Fishing sales
Connect with the market and formulate a commercial fish sales plan. The common carp began to be caught once or three times a month from May; grass, cockroach and carp caught the Mid-Autumn Festival, National Day, New Year's Day and Spring Festival and was listed on holiday sales; the carp and carp began to be caught in July, mainly Usually listed, catch large and small, catch up, make a balanced market. The squid adopts the "flower basket" method for fishing, while the other fish take a large net for fishing.
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