CN102524132A

CN102524132A - Prevention method for river crab diseases

Info

Publication number: CN102524132A
Application number: CN201210020619XA
Authority: CN
Inventors: 不公告发明人
Original assignee: Individual
Current assignee: Individual
Priority date: 2012-01-30
Filing date: 2012-01-30
Publication date: 2012-07-04

Abstract

The invention provides a prevention method for river crab diseases, which achieves the goals of remarkable prevention effects on the diseases of cultivated river crabs and yield increase and income increase of fishery. The prevention method for the river crab diseases comprises treating a crab pool during a cultivation preparation period of the river crabs. The prevention method is characterized in that after water is injected into the crab pool, chemicals are used according to a certain concentration to perform insect killing and sterilization to the crab pool so as to kill pathogens of the river crab diseases and various shellfish which are major intermediate hosts of the pathogens, and after a certain time, quicklime is mixed with the water according to a certain dosage and sprayed to the whole pool. The prevention method is favorable for reducing incidence of the river crab diseases, and is particularly favorable for reducing incidence of a trembling disease of the river crabs, thereby being favorable for increasing cultivation yield and economic benefit of the river crabs.

Description

A kind of method of preventing and treating of river crab disease

Technical field

The present invention relates to a kind of method of preventing and treating of river crab disease.

Background technology

In culture of Chinese mitten crab, along with the continuous expansion and the continuous increase in breed age of the scale of breed, the river crab disease is also more and more serious, especially the generation of river crab " trambling disease "; Often cause cultivating river crab to be annihilated, the method that generally adopts at present is when river crab falls ill; Medicament is converted the sterilization of water full pool spilling head, and the while medicament is processed pharmaceutical chemistry and taken to river crab, and this method has certain limitation; Especially aspect control river crab " trambling disease ", control efficiency is not obvious, and the river crab phenomena of mortality are serious; Both waste money, increased the medicament residue in the river crab body again, also polluted water body environment simultaneously.

Summary of the invention

The present invention provides a kind of method of preventing and treating of river crab disease, reaches purpose obvious to the cultivating river crab disease-controlling effect, the fishery increasing both production and income, the method for preventing and treating of said a kind of river crab disease; Be to culture the preparatory stage, the crab pond is handled, it is characterized in that to after the water filling of crab pond; Medicament is pressed finite concentration to crab pond full pool spilling head, carries out desinsection, sterilization, sterilization, to reach the pathogene and the intermediate host of pathogene---the purpose of various shellfishs of killing the river crab disease; Accomplish after the above-mentioned way certain hour; Convert the water full pool spilling head with quicklime again, adopt this method of preventing and treating, help reducing river crab disease incidence; Especially help reducing the incidence of river crab " trambling disease ", thereby help improving culture of Chinese mitten crab output and economic benefit.

Embodiment

In the culture of Chinese mitten crab preparatory stage,, make it to reach 0.3 meter of mean depth of water to the water filling of crab pond; Then, convert behind the water full pond with commercially available chrysanthemum ester class higher effective and lower toxic pesticide by 0.5 kilogram/mu consumption and evenly splash, to kill bigger pathogene and the intermediate host of pathogene---the various shellfishs of river crab harm; After 3～6 days, convert full pool spilling head behind the water with 150 kilograms of quicklimes again for every mu, on the one hand; Crack the medicament residue of pyrethrin pesticide with quicklime, in order to avoid its residue impacts follow-up culture of Chinese mitten crab or the water environment of plant's periphery is produced harmful effect, on the other hand; Quicklime can be to crab pond sterilizing, and increases the calcareous content in crab pond, helps the growth of the various aquatic animals and plants in crab pond; Favourable to culture of Chinese mitten crab, lime disinfection drains Chi Shui after 6 day time; And tan by the sun pond truth of a matter day, refill wash away pond 1-2 time through the clean breeding water that filters after, refill an amount of clean breeding water again through filtering; And with fishes and shrimps test tank water security harmless after, begin to plant grass, throw spiral shell, put daily culture of Chinese mitten crab work such as crab kind in a suitable place to breed.

Beneficial effect of the present invention shows: with commercially available chrysanthemum ester class higher effective and lower toxic pesticide; Can effectively kill the serious pathogene of river crab harm and the various intermediate hosts of pathogene---various shellfishs (as: sending last year such as the river crab of depositing, shrimps, insects etc.); The use of quicklime, it is residual not only can effectively to crack pyrethrin pesticide, and can kill multiple worm's ovum, germ; Increase the calcareous content of water body; Help reducing river crab disease incidence, especially help reducing the incidence of disease of river crab " trambling disease ", thereby help improving culture of Chinese mitten crab output and economic benefit.The present invention is with low cost, and is economical and practical, is easy to popularize, and effect is remarkable.

Claims

1. the method for preventing and treating of a river crab disease is meant culturing the preparatory stage, and the crab pond is handled, and it is characterized in that medicament is carried out desinsection, sterilization, disinfected the crab pond to after the water filling of crab pond.

2. according to the method for preventing and treating of the said a kind of river crab disease of claim 1, it is characterized in that said medicine is chrysanthemum ester class higher effective and lower toxic pesticide and quicklime.

3. according to the method for preventing and treating of the said a kind of river crab disease of claim 1, it is characterized in that said chrysanthemum ester class higher effective and lower toxic pesticide is commercially available decis, Belmark, can choose any one kind of them; When its consumption at winter-spring season is 0.3 meter of a crab pond mean depth of water, 0.5 kilogram of every mu of consumption, convert water after full pond evenly splash; All the other time consumptions cut down according to the circumstance; When the consumption of quicklime is 0.3 meter of a crab pond mean depth of water, 150 kilograms of every mu of consumptions, convert water after full pond evenly splash.

4. according to the method for preventing and treating of the said a kind of river crab disease of claim 1, it is characterized in that said decis, Belmark use after, wait for 3～6 days, re-use quicklime.

5. according to the method for preventing and treating of the said a kind of river crab disease of claim 1; It is characterized in that quicklime used after 3～6 days; Drain the Chi Shui that contains a small amount of pyrethrin pesticide and quicklime; Tan by the sun pond truth of a matter day,, inject through the clean breeding water that filters subsequent use at last then with washing away the pond 1-2 time through the breeding water that filters.

6. according to the method for preventing and treating of the said a kind of river crab disease of claim 1, it is characterized in that the river crab seedling is put in a suitable place to breed before, with fishes and shrimps elder generation test tank water, guarantee that the pond water security puts the river crab seedling in a suitable place to breed after harmless again.