Squid and shrimp rotation mode technology

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Squid and freshwater shrimp are all sought-after goods on the market. The demand is large and the price is good. The implementation of the rotation of pond squid and green prawn can not only maximize the use of the idle period of the fish pond, make full use of water and feed resources, increase the effective output and reduce the occurrence of diseases, but also greatly increase the economic benefits of pond culture. 1. pond condition and preparation pond area: 5 - 10 mu, rectangular, length-width ratio is generally 2.5 - 3.0: 1 suitable, east-west direction is better, water depth 1.2 - 1.5m, not too deep, is conducive to the growth of aquatic plants Photosynthesis, dissolved oxygen supplementation, and the habitat of fish and shrimp eat and grow. Tanggu width 3-5m, pond slope ratio 1:3 or more, and the bottom of the pond is slightly inclined to the side of the drainage, and digging at the bottom of the pond is 2m wide and 0.5m deep, and the ditch that communicates with the ditch is used as a fish (shrimp ) Slots, easy to pull dry nets for fishing. Adequate water supply, fresh water, no pollution, dissolved oxygen in water at 4mg/L, pH value of 7.5--9.0. To separate the irrigation and drainage system is conducive to the regulation of water quality and the prevention and treatment of diseases. 2. Breeding of carp species Breeding of bait fish The bait fish is selected from the summer of heterotrophic silver carp. In the beginning of April or so, the carp was made in the conventional way. By the beginning of May, the specification of about 20,000/kg is just the peculiarity of carp. Food. The source of summer carp and stocking The carp summer flowers with the stock size of 2–3cm at the beginning of May are stocked at a density of 2000 pigs per mu; polyculture feeding is used; the carp and bait fish are to be sorted by 1:200--300. The proportion of polyculture, so that the eel full intake, vigorous growth. This density can make the squid get enough food; at the same time, in order to ensure the growth of the uneaten bait fish, 1kg soy bean or bean cake and 10kg water-milled soybean milk or bean cake are fed once a day; Around the intensive cultivation, most of the large-sized squid species have reached 5--7cm, and the survival rate is above 70%. 3. Breeding of squid adult fish squid species and bait fish stocking After a month or so of intensively cultivated squid species, 70% of the pond's water can be pumped out, netted, caught, and counted, according to 700---800. The density of the tail/mu is maintained and transferred to the breeding of commercial cockroaches, which are sold in excess. When the carp species are stocked, silver locust summer flowers can be stocked at a density of 0.500 mu per mu. Suitable for the stocking of ground fishes with good palatability, such as wheat ear fish and crab fish, etc. These wild fish can be supplemented by multiple reproductions. The lack of bait fish to enhance the production capacity of the fish pond feed fish. Feeding management Carp rearing method is used to feed the bait fish at intervals of the growth stage. Feeding once or/10-to-15 days in the early and late stages, feeding once in the middle/7--10X, feeding 50kg per mu. At the same time, it can ensure that the ratio of carp and bait fish tails is 1:5-10. If the bait fish is too thin, the squid will consume too much physical energy for chasing the bait fish, which is not conducive to the feeding of long-term manure by the carp. If the bait fish is too dense, it will increase the total oxygen consumption and cause the catfish to lose oxygen. Not conducive to the growth of carp; carp after 3 months of feeding and management to mid-September, most of the up to the product specifications, then can be listed in batches fishing timely, to the middle and late October can be dry pond capture, commodity rate can be Up to 85%, the survival rate is above 95%. 4. In the autumn, the shrimp farmers will be reared for 5 to 7 days after stocking the herring ponds. Pond water 0.5--0.6m, and then fill in the base fertilizer; Fertilizer can be used chicken, pigs and grass and other fermented and disinfected organic fertilizer 150 - 200kg/mu as a natural food bait shrimp food feed, general mu stocking specifications 2000-4000}~/kg of green penaeid shrimp seedlings 8-10kg, about 2.5 - 30 thousand or so, when the shrimp has passed the breeding period, the number that can be effectively controlled. Set up three-dimensional mesh shrimps like to inhabit in shallow water areas and clusters to crawl at the edge of poolside beach. In the process of pond cultivation, only the shallow water area of ​​pool slope beach is used. The water space in the middle of the pond cannot be fully utilized; to overcome this Limitations require that three-dimensional mesh be set in the pond to make full use of the pond space and water body, so as to improve raising specifications and aquaculture production. The area of ​​the mesh is about 20% of the total area of ​​the pond. The mesh is stretched. The material is 1-2m wide and thin eye mesh, 0.4--0.6m away from the water surface and slightly inclined towards the foot of the pond. The film was set up three days before stocking. The rational feeding type of bait is mainly based on high-quality shrimp feed, with fine and coarse grain size, and poor quality and fine quality. Shrimp seedlings in a pond within the first month, the first half of a day with a full-price feed per acre broken feed No. 1 0.5-1kg, after the second half of a day with a No. 2 material per acre 1.5--2kg, later transferred to No. 3 feed, At the same time supplemented with feeding young barley, bran, bean cake, fish gills, cocoon, crushed snails, etc., the general daily feeding amount of 15% - 20% of shrimp weight in the early stage, the middle of 8% - 10%, late 5% --- 6%, mastered within 2 to 3 hours after eating. Feeding methods are generally 2 times a day, 8-9 in the morning, accounting for 30% of the total amount of the day's feeding, voted in the middle of the pond; 70% of the total amount of the day's feeding at 5 o'clock in the afternoon, cast around the pond and Stereo mesh. Do four things: look at the season, look at the weather, see the water quality, and see the growth of shrimp activities; four set: timing, positioning, qualitative, quantitative. 5, water quality management Whether it is squid or shrimp, the dissolved oxygen in water is very demanding, so in the breeding process must be a reasonable regulation of good water quality. Because the oxygen consumption rate of carp farming is almost twice as high as that of domestic fish, the floating head phenomenon occurs when the dissolved oxygen content is below 5mg/L. Therefore, raising the fish is about 1.4m. Replace part of the pool water, the transparency is maintained between 35-45cm, in order to facilitate the strong feeding of carp, rapid growth, stifling thunderstorm weather appropriate oxygen, to ensure that the pool of oxygen is sufficient to avoid carp oxygen lack of floating head. The fresh shrimp ponds require fresh water, high oxygen content and no pollution. In the early stage, mainly fertilizer and water were used, and the transparency was about 25cm. In the middle and later stages, ground water or water was changed, and the transparency was about 35cm. The water change was generally performed on a sunny afternoon. During the growth period, calcium superphosphate 3 - 5 kg/mu and quicklime 10 - 15 kg/mu were used alternately every 20 days, but it is forbidden to use them together or at the same time. 6. Disease prevention and control Establish a concept of “awareness-based, prevention-control combination” culture awareness. Carp culture trichoderma disease In the two months after the carp summer flowering, copper sulfate and ferrous sulfate mixture (5:2) were applied every two weeks at a concentration of 0.7 ppm. The ringworm squid has seen a large number of cyst parasites before and after mid-June, resulting in a darker body color of the squid, edema of the scorpion fish, and a thin body that does not ingest food. Use a 0.1-ppm crystal trichlorfon to prevent it from splashing. Be careful when splashing. Temperature and weather conditions; Chinese sturgeon carp raised to the middle of September can be used in the concentration of 0.25ppm strong insecticide type I spill prevention. Green prawn breeding will produce black shank disease and shelling disease in the culture of shrimp. It can be used to throw lime in the whole pool of 15kg/mu. If wild fish such as carp, squid, and mudfish have to be removed in time during the cultivation of the shrimp, the “clean pond net” 0.5kg/mu is generally used per m of water depth. If moss appears, “highly efficient removal of moss net” can be used for every m water depth. With 45g/mu, sprinkling on the moss growth place, the moss will basically disappear after three days, otherwise the damage will affect the survival and quality of the shrimp.

Commodity

Goji Juice

Specification

500ml, 700ml,1100ml

Brix

13%-18% (Raw Juice)

36%-40%(Concentrated Juice)

Shelf Life

18 Months

Storage

Ventilation, Dry Place,No More Than 20

Payment Terms

Negotiable

Minimum Order Quantity

1 Ton

Package

on request


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