Breeding method of crawfish

A culture method and lobster technology, applied in the field of aquaculture, can solve the problems of uneven quality of commercial shrimp, insufficient supply of crayfish, lack of wild resources, etc., and achieve the effects of excellent meat quality and taste, saving feed, and high group output.

Inactive Publication Date: 2018-02-02
苏冬发
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

With consumers' awareness of freshwater crayfish and extensive media promotion, freshwater crayfish food has generally entered restaurants, hotels, supermarkets and family dining tables. The demand for crayfish is very strong. Due to overfishing, wild resources are seriously lacking, and commodities Shrimp quality is uneven; as far as the southwest region is concerned, the supply of crayfish is insufficient, and there are basically no finished shrimps in winter; and most of the crayfish farming methods are trench digging extensive farming and co-cultivation in rice fields, etc., and the yield per mu is generally not high

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] A culture method for crayfish, comprising the steps of:

[0018] (1) Choose a place with sufficient water sources, no pollution, and a flat bottom to build a breeding pond. The pool area is 30 square meters; Spray and disinfect the whole pond with quicklime water with a concentration of 100kg / 667㎡; after 10 days, inject water into the breeding pond with a water depth of 0.8m;

[0019] (2) plant algae in the culture pond, and the covered area of ​​algae formed is greater than 50% of the area of ​​the whole culture pond;

[0020] (3) 100,000 juvenile shrimps are stocked per mu, and the ratio of male to female is 1:1;

[0021] (4) Put crayfish feed into the pond. The feed is put in three times, 12% of the daily feeding amount in the morning; The daily feeding amount is 60% of the body weight of crayfish;

[0022] (5) Turn on the aerator at 13:00 every day to increase the oxygen for 1 hour to ensure that the oxygen in the breeding pond is 6.3mg / L; change the water every ...

Embodiment 2

[0026] A culture method for crayfish, comprising the steps of:

[0027] (1) Choose a place with sufficient water sources, no pollution, and a flat bottom to build a breeding pond with an area of ​​35 square meters; 25 days before stocking, drain the water in the breeding pond and expose it to the sun for 6 days, apply 175kg of decomposed human urine and feces per mu, and then Spray and disinfect the whole pond with quicklime water with a concentration of 100kg / 667㎡; after 10 days, fill the breeding pond with water depth of 0.9m;

[0028] (2) Planting algae in the aquaculture pond, forming a covered area of ​​algae greater than 52.5% of the entire aquaculture pond area;

[0029] (3) 110,000 juvenile shrimps are stocked per mu, and the ratio of male to female is 1:1;

[0030] (4) Put crayfish feed into the pond. The feed is put in three times, 15% of the daily feeding amount in the morning; The daily feeding amount is 65% of the body weight of crayfish;

[0031] (5) Turn on t...

Embodiment 3

[0035] A culture method for crayfish, comprising the steps of:

[0036] (1) Choose a place with sufficient water sources, no pollution, and a flat bottom to build a breeding pond with an area of ​​40 square meters; 30 days before stocking, drain the water in the breeding pond and expose it to the sun for 7 days, apply 200kg of decomposed human urine and feces per mu, and then Spray and disinfect the whole pond with quicklime water with a concentration of 100kg / 667㎡; after 10 days, fill the breeding pond with water depth of 1m;

[0037] (2) Planting algae in the aquaculture pond, forming a covered area of ​​algae greater than 55% of the entire aquaculture pond area;

[0038] (3) 120,000 juvenile shrimps are stocked per mu, and the ratio of male to female is 1:1;

[0039] (4) Put crayfish feed into the pond. The feed is put in three times, 18% of the daily feeding amount in the morning; The daily feeding amount is 70% of the body weight of crayfish;

[0040] (5) Turn on the a...

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PUM

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Abstract

The invention discloses a breeding method of crawfish. The method comprises the following steps of pond selection, algae planting, breeding of juvenile crawfish, feeding management, water quality management and harvest. The breeding method of the crawfish is natural, pollution-free and hormone-free and meets the growth rule of the crawfish, and the crawfish is carefully cared in the whole process.Through pure natural growth, the growth efficiency and survival rate of the crawfish are improved, the population yield is high, and meanwhile the fish meat of the crawfish is high in nutrient value,has no hormone, and is delicious in flavor and excellent in quality and taste. Meanwhile, the crawfish is fed with feed which contains plant extract, the feed can be saved, the medicine putting amount and breeding cost can also be lowered, and the benefit of crawfish breeding is improved.

Description

technical field [0001] The invention relates to the technical field of cultivation, in particular to a method for cultivating crayfish. Background technique [0002] Crayfish, also known as Procambarus clarkii, red crayfish and freshwater crayfish. Crayfish meat is delicious and nutritious. It is a high-protein, low-fat and high-energy, nutritious health food. Because of its omnivorous nature, fast growth speed, and strong adaptability, it has formed an absolute competitive advantage in the local ecological environment. Its food range includes aquatic plants, algae, aquatic insects, animal carcasses, etc. It also kills each other when food is scarce. [0003] Crayfish has become an important economically farmed species in China in recent years. With consumers' awareness of freshwater crayfish and extensive media promotion, freshwater crayfish food has generally entered restaurants, hotels, supermarkets and family dining tables. The demand for crayfish is very strong. Due t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01K61/59A01K63/04A23K50/80A23K10/37A23K10/30A23K10/22A23K10/20A23K20/158A23K20/142A23K10/16A23K20/174A23K20/26A23K10/18
CPCA01K61/59A01K63/04A23K10/16A23K10/18A23K10/20A23K10/22A23K10/30A23K10/37A23K20/142A23K20/158A23K20/174A23K20/26A23K50/80Y02A40/81Y02A40/818Y02P60/87
Inventor 苏冬发
Owner 苏冬发
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