Environment-friendly pond cleaning method for freshwater shrimp and crab culture pond

A technology for cultivating ponds and freshwater shrimp, which is applied in the field of clearing ponds. It can solve the problems of unsuitable freshwater shrimp and crab clearing ponds and unfavorable freshwater shrimp and crab breeding ecology, so as to delay the season of bait biological fertilizer and water, prolong the time of toxicity disappearing, and speed up the process of clearing ponds Effect

Inactive Publication Date: 2012-09-19
FRESHWATER FISHERIES RES CENT OF CHINESE ACAD OF FISHERY SCI +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, quicklime and bleaching powder belong to the "all-in-one" pond clearing medicines, which will kill the aquatic plants, snails and other animal and plant baits in the shrimp and crab ponds while completely killing the harmful organisms, which is not conducive to the ecology of freshwater shrimp and crab breeding. improvement, so it is not suitable for freshwater shrimp and crab breeding ponds

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] The preparation method of deer vine root powder: harvest deer vine roots in Liuzhou, Guangxi, where the stem heads, fibrous roots, and old root disease roots have been removed, and cut the purchased fine deer vine roots into 1mm slices, dry them and grind them Machine crushed into fine powder, sieved with 80-mesh silk screen to obtain deer vine root powder. The particle size of deer vine root powder is 80 mesh to 100 mesh, and the effective content of rotenone is 5% to 8%. The prepared deer vine root powder is packed into a packaging bag and sealed, and stored in a cool and dry place strictly away from light.

[0018] During the stocking season of Procambarus clarkii seedlings in March, in the standardized breeding base of Procambarus clarkii in Jiangsu Xuyi Lobster Co., Ltd., the water level in the breeding pond with an area of ​​10,000 square meters is pumped to 30cm, and the prepared deer vine root powder can be applied Clear pond with water. Choose sunny weather ar...

Embodiment 2

[0022] The preparation method of deer vine root powder: the deer vine root is harvested in Jieyang, Guangdong, where the deer vine is planted and the stem head, fibrous root, and old root disease root are removed, and the purchased fine deer vine root with the head stem removed is cut into 2mm thin slices, dried and crushed Machine crushed into fine powder, sieved with 80-mesh silk screen to obtain deer vine root powder. The particle size of deer vine root powder is 80 mesh to 100 mesh, and the effective content of rotenone is 5% to 8%. The prepared deer vine root powder is packed into a packaging bag and sealed, and stored in a cool and dry place strictly away from light.

[0023] In the season of releasing seedlings of Chinese mitten crabs at the beginning of spring from February to March, in the breeding base of Chinese mitten crabs in Gucheng Lake, Gaochun, Jiangsu, the area of ​​crab ponds is 13,334 square meters, the average water depth is 50cm, and the water temperature ...

Embodiment 3

[0025] The preparation method of deer vine root powder: harvest deer vine roots in Wenchang, Hainan, where stem heads, fibrous roots, and old root disease roots have been removed, and cut the purchased fine deer vine roots into 1.5mm slices in an oven. After drying at a medium temperature of 20°C, grind it into fine powder with a pulverizer, and sieve it with an 80-mesh silk screen to obtain the deer vine root powder. The particle size of deer vine root powder is 80 mesh to 100 mesh, and the effective content of rotenone is 5% to 8%. The prepared deer vine root powder is packed into a packaging bag and sealed, and stored in a cool and dry place strictly away from light.

[0026]

[0027]During the stocking season of freshwater prawns in July, at the ecological breeding base of freshwater prawns in Yixing, Jiangsu, the water level in the breeding pond with an area of ​​13333 square meters was pumped to 40cm, and the prepared deervine root powder could be applied to the clear po...

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Abstract

The invention relates to an environment-friendly pond cleaning method for a freshwater shrimp and crab culture pond. The environment-friendly pond cleaning method comprises the following steps of: cutting derris roots into slices, grinding the dried slices to fine powders by a grinder, and then screening the fine powders through a boulting cloth net to obtain derris root powders; when the freshwater shrimp and crab culture pond is cleaned, slighting soaking the derris root powders in clear water from the pond, and then uniformly spraying the residues of the derris root powders with the water into the pond to kill miscellaneous fishes in the pond after 2 to 4 hours, wherein 1.2 to 1.5 kilograms of the derris root powders are added in each 667-cubic-meter water; and after the pond is cleaned and disinfected by the derris root powders, spraying fermented organic manure water, namely pigeon manure water or rabbit manure water, into a water body in the pond, and after fertilizing for 5 to 7 days, putting juvenile shrimps and crabs into the pond. According to the invention, a natural plant, derris, is utilized to prepare a pond cleaning drug, the technology is simple, and the operation is convenient. Compared with the routine pond cleaning drugs, the prepared derris root powders have the advantages of high working speed, high efficiency, small dosage, low production cost, environment friendliness, easy degradation in the water body, avoidance of drug residues and safety to the juvenile shrimps and crabs as well as waterweeds, thus being particularly suitable for cleaning the freshwater shrimp and crab culture pond.

Description

technical field [0001] The invention relates to a pond clearing method, in particular to an environment-friendly pond clearing method for freshwater shrimp and crab culture ponds, and belongs to the technical field of aquaculture. Background technique [0002] Cleaning pond is the first step in aquaculture and the basic work in the early stage of freshwater shrimp and crab breeding. Clearing pond can effectively remove wild fish, aquatic insects, filamentous algae, parasites and pathogenic bacteria in shrimp and crab ponds All kinds of harmful organisms, such as various kinds of harmful organisms, play a key role in improving the survival rate of seedlings and healthy farming of shrimps and crabs. The harmful organisms in freshwater shrimp and crab ponds, such as ferocious fish, can prey on a large number of shrimp seedlings, button crab seedlings, and molting juvenile shrimp and crabs, affecting the growth and survival of shrimp and crabs; animals that compete with shrimp a...

Claims

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Application Information

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IPC IPC(8): A01K61/00
CPCY02A40/81
Inventor 赵朝阳华雪铭张成锋水燕徐钢春周鑫
Owner FRESHWATER FISHERIES RES CENT OF CHINESE ACAD OF FISHERY SCI
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