Comprehensive prevention and control method for infectious hematopoietic necrosis of rainbow trout fry

A technology for comprehensive prevention and control of hematopoietic organ necrosis, applied in chemical instruments and methods, botanical equipment and methods, antiviral agents, etc., can solve the problems of lack of comprehensive prevention and control methods for IHN, achieve a wide range of antibacterial and antiviral, Strong killing ability, guaranteed cleaning effect

Pending Publication Date: 2021-08-31
HEILONGJIANG RIVER FISHERY RES INST CHINESE ACADEMY OF FISHERIES SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problem that the prior art lacks an effective comprehensive prevention and control method for IHN, the present invention provides a comprehensive prevention and control method for infectious hematopoietic organ necrosis in rainbow trout seedlings

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] This example provides a bactericidal and antiviral slow-release material with a core-shell structure and a preparation method thereof.

[0027] The core layer of the bactericidal and antiviral slow-release material with a core-shell structure provided in this example is drug-loaded activated carbon, and the shell layer is drug-loaded colloid. Both the drug-loaded activated carbon and the drug-loaded colloid are loaded with iodine preparations: povidone-iodine.

[0028] This embodiment further provides a preparation method for a core-shell structure bactericidal and antiviral slow-release material, including the following steps:

[0029] Step 1, preparation of drug-loaded activated carbon:

[0030] Povidone-iodine is prepared into the povidone-iodine medicinal solution that the available iodine content is 10wt%, the povidone-iodine medicinal solution and active carbon are mixed in the ratio of volume mass ratio 5mL:1g, stir evenly and ultrasonically disperse under 300W p...

Embodiment 2

[0036] This example provides a method for disinfecting water in a hatchery using the bactericidal and antiviral sustained-release material with a core-shell structure in Example 1.

[0037] The specific disinfection method is to inject water with a height of 30cm into the hatching pond or breeding pond in the workshop 5 to 10 days before the fish eggs or fry are stocked, and the water is 1Kg / m 3Dosage Put the bactericidal antiviral slow-release material of embodiment 1 core-shell structure in the pool. After the bactericidal antiviral slow-release material is put into the pool, the sodium alginate in the drug-loaded colloid swells with water, and the povidone-iodine in the colloid is gradually released during the swelling process. Drug activated carbon, the povidone iodine in the drug-loaded activated carbon is also slowly released into the water to play a long-term antiviral effect, and the remaining activated carbon after the antiviral agent is released can also purify and c...

Embodiment 3

[0040] This example provides a bactericidal and antiviral slow-release material with a core-shell structure and a preparation method thereof.

[0041] The core layer of the core-shell structure bactericidal antiviral sustained-release material provided in this example is drug-loaded activated carbon, the loaded antiviral agent is traditional Chinese medicine antiviral concentrate, the shell layer is drug-loaded colloid, and the loaded antiviral agent is povidone iodine.

[0042] This embodiment further provides a preparation method for a core-shell structure bactericidal and antiviral slow-release material, including the following steps:

[0043] Step 1, prepare traditional Chinese medicine antiviral concentrate:

[0044] Soak 15 parts of Radix Isatidis, 15 parts of Honeysuckle, 6 parts of Dandelion, 6 parts of Kudiding, 6 parts of Coptidis Rhizoma, 6 parts of Phellodendron Phellodendron and 6 parts of Forsythia in 10 times the quality of water overnight, and extract at 120°C...

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Abstract

The invention relates to a comprehensive prevention and control method for infectious hematopoietic necrosis of rainbow trout fry, and belongs to the technical field of aquaculture. In order to solve the problem that an effective IHN comprehensive prevention and control method is lacked in the prior art, the invention provides a comprehensive prevention and control method for infectious hematopoietic necrosis of rainbow trout fry. The comprehensive prevention and control method comprises fish body quarantine, incubation workshop disinfection management and fish body immunoprophylaxis, and incubation workshop disinfection management comprises incubation and culture water disinfection, appliance disinfection and fish body disinfection. According to the step of disinfecting the hatching and breeding water, a core-shell-structure sterilization and antiviral slow-release material is put into a water pool before stocking, the core layer of the material is drug-loaded activated carbon, the shell layer of the material is drug-loaded colloid, and antiviral agents are loaded in the drug-loaded activated carbon and the drug-loaded colloid. From the three aspects of fish body quarantine, incubation workshop disinfection management and fish body immunoprophylaxis, comprehensive prevention and control of IHN are carried out on the whole process from fertilized egg incubation to fry culture of rainbow trout, and the incidence rate of IHN of rainbow trout fry is effectively reduced.

Description

technical field [0001] The invention belongs to the technical field of aquaculture, and in particular relates to a method for comprehensive prevention and control of infectious hematopoietic organ necrosis of rainbow trout seedlings. Background technique [0002] Rainbow trout is the main cultured species of cold-water fish in my country. Because it can only survive in a cold, clean, and pollution-free water environment, it determines their green and environmental quality characteristics, and is a veritable healthy food. Large-scale death of rainbow trout juveniles often occurs in varying degrees in rainbow trout farms, and its mortality rate can be as high as more than 90%, which makes some farms suffer a devastating blow and seriously restricts the development of the industry and the enthusiasm of farmers. Studies have shown that rainbow trout infectious hematopoietic necrosis (IHN) is the main cause of the death of rainbow trout juveniles. According to incomplete statisti...

Claims

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Application Information

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IPC IPC(8): A01N25/08A01N25/26A01N59/12A01N65/36A01N65/32A01N65/12A01N65/08A01P1/00C02F1/28C02F1/50A61K36/899A61K9/08A61K33/18A61K31/79A61P31/14
CPCA01N25/08A01N25/26A01N59/12A01N65/00A01N65/08A01N65/12A01N65/32A01N65/36A61K9/0014A61K9/08A61K31/79A61K33/18A61K35/64A61K36/718A61K36/78A61K36/899A61P31/14C02F1/283C02F1/50A61K2300/00
Inventor 卢彤岩徐黎明赵景壮任广明刘红柏邵轶智韩世成
Owner HEILONGJIANG RIVER FISHERY RES INST CHINESE ACADEMY OF FISHERIES SCI
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