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Pond-culture river crab sub-adult maturity promoting feed and using method thereof

A feed and pond technology, which is applied in the field of pond cultured crab sub-adult maturation-promoting feed, can solve the problems of undiscovered pond-cultured river crab sub-adult maturation-promoting feed and its use method, etc., so as to improve anti-stress ability and immune performance, and reduce pollution. , the effect of increasing energy accumulation

Pending Publication Date: 2017-06-09
HUAIYIN TEACHERS COLLEGE +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] So far, no special maturation-promoting feed and usage method for pond cultured river crab subadults have been found at home and abroad

Method used

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  • Pond-culture river crab sub-adult maturity promoting feed and using method thereof

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Experimental program
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Effect test

Embodiment 1

[0021] Embodiment 1: produce 1000 kilograms of feed of the present invention and get following each raw material:

[0022] 180 kg of imported steamed fish meal, 180 kg of soybean meal, 80 kg of peanut meal, 120 kg of rapeseed meal, 235 kg of secondary meal, 70 kg of cotton meal, 40 kg of shrimp head powder, 20 kg of spirulina powder, 20 kg of soybean lecithin oil, lard 10 kg, 10 kg of refined fish oil, 10 kg of calcium dihydrogen phosphate, 7 kg of choline chloride, 5 kg of multivitamins, 3 kg of cholesterol, and 10 kg of compound minerals; And granulate to make hard pellet feed, fish oil and fat-soluble vitamins are added after spraying, the feed particle size is 3.5mm, and the length is 5mm; after the fourth molting of adult crabs in ponds, when the average daily water temperature in the pond is lower than 31 degrees , using the maturation-promoting feed for 30 days, until more than 90% of the adult crabs have completed reproductive moulting; the daily feeding amount of the ...

Embodiment 2

[0023] Embodiment 2: produce 1000 kilograms of feed of the present invention and get following each raw material:

[0024] 255 kg of imported steamed fish meal, 165 kg of soybean meal, 65 kg of peanut meal, 110 kg of rapeseed meal, 217.5 kg of secondary meal, 60 kg of cotton meal, 35 kg of shrimp head powder, 20 kg of spirulina powder, 20 kg of soybean lecithin oil, lard 10 kg, 10 kg of refined fish oil, 10 kg of calcium dihydrogen phosphate, 6.5 kg of choline chloride, 4 kg of multivitamins, 3 kg of cholesterol, and 9 kg of compound minerals; And granulate to make sinking extruded feed, fish oil and fat-soluble vitamins are added after spraying, the feed particle size is 3.5mm, and the length is 5mm; after the fourth molting of adult crabs in ponds, the average daily water temperature in the pond is lower than 31 degrees When using this maturation-promoting feed, feed it continuously for 35 days until more than 90% of the adult crabs have completed reproductive molting; the d...

Embodiment 3

[0025] Embodiment 3: produce 1000 kilograms of feed of the present invention and get following each raw material:

[0026]330 kg of imported steamed fish meal, 150 kg of soybean meal, 50 kg of peanut meal, 100 kg of rapeseed meal, 200 kg of secondary meal, 50 kg of cotton meal, 30 kg of shrimp head powder, 20 kg of spirulina powder, 20 kg of soybean lecithin oil, lard 10 kg, 10 kg of refined fish oil, 10 kg of calcium dihydrogen phosphate, 6 kg of choline chloride, 3 kg of multivitamins, 3 kg of cholesterol, and 8 kg of compound minerals; Quality and granulation to make hard pellet feed, fish oil and fat-soluble vitamins are added after spraying, the feed particle size is 3.5mm, and the length is 5mm; after the fourth molting of adult crabs in ponds, the average daily water temperature in the pond is lower than 31 degrees When using this maturation-promoting feed, feed it continuously for 40 days until more than 90% of the adult crabs have completed reproductive molting; the d...

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Abstract

The invention discloses pond-culture river crab sub-adult maturity promoting feed and a using method thereof. The maturity promoting feed is composed of, by weight, 18-33% of imported steamed fish meal, 15-18% of bean meal, 5-8% of peanut meal, 10-12% of rapeseed meal, 20-23.5% of wheat middling, 5-7% of cottonseed meal, 3-4% of shrimp head powder, 2% of spirulina powder, 2% of soybean lecithin, 1% of lard, 1.0% of refined fish oil, 1.0% of monocalcium phosphate, 0.6-0.7% of choline chloride, 0.3-0.5% of composite vitamin, 0.3% of cholesterol and 0.8-1.0% of composite mineral. After pond-culture adult crabs shell for the fourth time, the maturity promoting feed is continuously fed for 30-40 days until more than 90% of the adult crabs complete reproductive shelling. By using the maturity promoting feed to feed pond-culture river crabs, survival rate and weight gain rate of sub-adult mature shelling reach about 90% and 60% respectively; the maturity promoting feed is suitable for feed enterprises, river crab culture enterprises and aquaculture farmers to use and can promote mature shelling to make the river crabs for market early, improve culture effect and culture benefit and lower culture risk.

Description

technical field [0001] The invention relates to a pond cultured river crab subadult maturation-promoting feed and a using method thereof, belonging to the technical field of aquaculture. Background technique [0002] Chinese mitten crab, referred to as river crab (hereinafter referred to as river crab), is the most important cultured crab in my country. In 2014, the national adult crab breeding output reached about 800,000 tons, with an annual output value of more than 50 billion yuan. The pond culture process of river crabs is usually divided into two years. In the first year, the megalopa are cultivated into crab crab species (generally weighing 3-10 grams). Usually, the breeding density is relatively high, and 100,000-200,000 megalopa are stocked per mu. Finally, 10,000 to 40,000 crabs will be cultivated; in the second year, the crab species will be bred until the adult crabs with mature gonads (generally weighing 100-200 grams), and the adult crabs are usually stocked at...

Claims

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Application Information

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IPC IPC(8): A23K50/80A23K10/22A23K10/37A23K10/30A23K10/26A23K20/158A23K20/26A23K20/105A23K20/174A23K20/168A23K20/20A01K61/59
CPCA23K50/80A23K10/22A23K10/37A23K10/26A23K10/30A23K20/158A23K20/26A23K20/105A23K20/174A23K20/168A23K20/20A23K40/10A23K40/30A01K61/59Y02A40/818Y02A40/81Y02P60/87
Inventor 吴旭干常国亮邓登成永旭向朝林王可宝
Owner HUAIYIN TEACHERS COLLEGE
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