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Method for effectively preventing and controlling EHP in salt pan shrimp culture

A technology of salt fields and aquaculture ponds, applied in fish farming, application, climate change adaptation, etc., can solve problems such as poor results, and achieve the effects of increasing total output, accelerating growth rate, and reducing water pollution.

Pending Publication Date: 2022-01-28
渤海水产股份有限公司 +1
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AI Technical Summary

Problems solved by technology

However, a single prevention and control is often ineffective

Method used

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Effect test

Embodiment 1

[0026] A method for effective prevention and treatment of EHP in salt field shrimp culture, comprising the steps of:

[0027] (1) Large to small, shallow to deep: transform the original 1000-5000 mu seawater salt field evaporation pond with a water level of 60-70cm into a single breeding pond; A ring ditch is set outside the slope of 10-20 meters, the width of the ring ditch is 20-30m, and the depth is 40-60cm. Each culture pond is provided with an independent drainage system.

[0028] (2) Pond repair: Drain the water in non-production seasons, use 50-200 kg of quicklime per mu, plow 20-30cm with machinery, and dry for more than 30 days;

[0029] (3) Selection of stress-resistant varieties: select excellent varieties that focus on stress-resistant traits, and varieties that focus on growth speed increase the difficulty of disease prevention and control in the saltfield shrimp farming model;

[0030] (4) EHP pathogen detection: select germplasm, larvae, and seedlings, and chec...

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Abstract

A method for effectively preventing and controlling EHP in salt pan shrimp culture comprises the following steps of pond trimming, stress-resistant variety selection, EHP pathogen detection, shrimp fry intensive cultivation and salinization, whole-process feeding of fairy shrimps, water quality regulation and control, water quality detection, biological prevention and control, physical prevention and control and stress prevention.According to the method, EHP pathogen detection reports of the variety, larvae and fry selected are inspected, and only the fry with all links being negative can be used for culturing the saltpan shrimps, so that the survival rate of the shrimps is improved, and the yield per mu and the total yield are greatly improved.

Description

technical field [0001] The invention belongs to the field of aquatic products, and in particular relates to a method for effectively preventing and treating EHP in salt field shrimp cultivation. Background technique [0002] Hepatoenteric microsporidium (EHP), belonging to the genus Phylum Apicomplex, Class Sporozoa, Cryptosporidium, Enteroepithelial Microsporidiaceae, has a very wide distribution and is a Unicellular, obligate intracellular coccidia parasites, opportunistic pathogenic protozoa that can cause gastrointestinal lesions in animals. At present, there are about 20 species of Cryptosporidium isolated from various vertebrates, including mammals, birds, reptiles, crustaceans and fish. [0003] In recent years, the incidence of EHP infection in prawns can reach more than 60%. The most obvious feature is that the growth of prawns is slow, the individual differences of prawns are large, and it is accompanied by white stools; severe cases will have enteritis, muscle at...

Claims

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Application Information

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IPC IPC(8): A01K61/59A01K63/00A01K61/13
CPCA01K61/59A01K63/003A01K61/13Y02A40/81
Inventor 陈锚陈洁赵延霞于洋孙青郁陈清
Owner 渤海水产股份有限公司
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