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3 results about "Freshwater shrimp" patented technology

Freshwater shrimp is shrimp which lives in fresh water.

Method for ecologically cultivating freshwater shrimps in paddy

ActiveCN103931529AAvoid pollutionAvoid influenceClimate change adaptationPisciculture and aquariaDiseaseFresh water organism
The invention discloses a method for ecologically cultivating freshwater shrimps in a paddy. The method includes the following steps that the paddy is fertilized and then raked, a communicated cultivating ditch is excavated in the raked paddy, a field ridge is built around the cultivating ditch with excavated soil, the height of the field ridge ranges from 45 cm to 70 cm, and the width of the field ridge ranges from 60 cm to 90 cm; the cultivating ditch is provided with a water inlet and a drainage opening, the water inlet and the drainage opening are respectively provided with a device preventing the freshwater shrimps from escaping, a pond occupying 5%-8% of the area of the whole paddy is excavated on the water inlet, and the depth of the pond ranges from 80 cm to 110 cm; the paddy is sterilized through calcium oxide; seedlings of a rice variety are inserted into the sterilized paddy, wherein the stalks of the seedlings are thick and strong, the seedlings are resistant to lodging, diseases and fertility and grow in deep water, and the yield is high; the freshwater shrimps are fed after the seedlings turn green; bait is thrown during cultivating according to the freshwater shrimps in different growth stages, and meanwhile water keeps clean. The freshwater shrimps cultivated in the method are natural and free of pollution and are pure green food.
Owner:JIAXING VOCATIONAL TECHN COLLEGE

Crayfish feed

InactiveCN103652406ANutritional balanceOmnivorousAnimal feeding stuffBiotechnologyPrawn
The invention relates to the technical field of aquaculture, and in particular relates to a crayfish feed which is prepared from the following raw materials in parts by weight: 20-25 parts of corn flour, 12-15 parts of soybean cake, 5-6 parts of wheat middling, 8-10 parts of wheat bran, 3-4 fish intestine powder, 2-3 parts of clam worm powder, 3-4 parts of freshwater shrimp powder, 5-6 parts of fresh soybean milk, 4-5 parts of pondweed, 2-3 parts of bone meal, 3-4 parts of fermented duck blood powder, 5-6 parts of alternanthera philoxeroide stem and leaf, 4-5 parts of bread crumb, 2-3 parts of sleeve-fish powder, a proper amount of salt and 4-5 parts of phagostimulant. The feed provided by the invention is completely accordant with the omnivorous characteristics of crayfish and contains multiple high-quality protein raw materials, the palatability of the feed can be improved because of the fishy smell of the raw materials such as the fish intestine powder, the clam worm powder and the sleeve-fish powder, the food consumption of the crayfish is increased, the fed crayfish can grow and develop rapidly, the weight can be remarkably increased, and moreover, as the raw materials are all pure natural green raw materials, the problem of medicine residue is prevented, and the quality of crayfish is ensured.
Owner:ANHUI ZHIHUI ELECTRIC TECH CO LTD
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