Cyst removal method for controlling fish cryptocaryon irritans

A technology that stimulates and removes cryptonium disease, and is applied in fish farming, application, climate change adaptation, etc., and can solve problems such as pollution of the environment, fish toxicity, and drug residues

Inactive Publication Date: 2016-05-04
SUN YAT SEN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the current methods commonly used to prevent and treat cryptocystosis are still frequent use of chemical drugs such as formaldehyde, CuSO4, and copper-iron mixture. Although chemical drugs can effectively control cryptocystosis, there are huge hidden dangers in practical applications, such as Fish toxicity, drug residues, environmental pollution, etc., so an environmentally friendly treatment method is imminent

Method used

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  • Cyst removal method for controlling fish cryptocaryon irritans

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] Example 1: The effect of treating the disease by removing cysts of Cryptocaryon stimuli

[0015] In this experiment, the red pepper seabream (27.79±3.07g / tail) was purchased from Auda Bay, Sandu, Ningde City. Before the experiment, they were raised in round plastic barrels (volume 1 ton) for two weeks, raised in micro-flow water, fed pellets, and used natural seawater with a salinity of 29-32‰, dissolved oxygen ≥ 5.0 mg / l, and pH 7. 9~8.3, nitrite <0.1mgN / l.

[0016] The pepper seabream were randomly divided into three groups: control group, infection group, padding group, each group had three replicate groups, and each replicate group had 30 fish. Among them, the infection group and the pad group were infected with 30 larvae per fish with 3000 larvae / fish, the amount of seawater was 5L / fish, and the running water was turned on after 2 hours of infection. The control group and the infection group were cultured normally, and the pad cloth group was experimented with a ...

Embodiment 2

[0018] 1. Preparation of breeding ponds and pads

[0019] The breeding pond is an indoor cement pond for industrialized seawater fish farming. The length, width and height are 8m×4m×2m. The strength is greater than 1500N, the weft direction is greater than 1000N, and the thickness is 0.5mm; the cloth is made into the shape of the bottom of the fish pond, with a length and width of 8m×4m, and a steel pipe with a diameter of 4cm and a length of 4m is fixed at both ends of the cloth, and the Both sides of the steel pipe are connected with two nylon ropes with a diameter of 0.4 cm and a length of 12 m.

[0020] 2. Fish disease identification and sick fish entering the pond

[0021] Identification of fish diseases: During the period from May to October when the cryptocystosis is prone to occur, when the water temperature is higher than 24°C, observe whether the fish have the following symptoms: the fish presents abnormal swimming, loss of appetite, often collides with the bottom o...

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Abstract

The invention discloses a cyst removal method for controlling fish cryptocaryon irritans. A cloth liner with the strong attaching effect on cryptocaryon irritans brown cysts is screened out mainly and laid on a water bottom of fish infected with the cryptocaryon irritans, the cryptocaryon irritans brown is nourished, falls down and is attached to the cloth liner, the cryptocaryon irritans brown cysts are removed by removing the cloth liner, the life history of the cryptocaryon irritans brown is cut off, and deaths caused when fish is repeatedly infected with the cryptocaryon irritans brown are reduced. By screening the materials, the cloth liner which is resistant to corrosion and free of toxicity and has the strong attaching effect on the cryptocaryon irritans brown cysts is obtained, the method for removing the cryptocaryon irritans brown cysts is used for treating plectorhinchus cinctus infected with cryptocaryon irritans, and the relative protection rate can reach 98%.

Description

technical field [0001] The invention belongs to the field of fish disease prevention and control, and in particular relates to a cyst removal method for controlling fish irritating cryptocystosis. Background technique [0002] According to the present invention, Cryptocaryon stimuli cysts have strong adhesion, and it takes at least three days for the cysts to escape from the formation of larvae. Lay pads at the bottom of fish ponds infected with Cryptocaryon stimuli, replace them regularly, and cut off the cysts. Life history, in order to achieve the purpose of controlling cryptocytoniasis. [0003] Cryptocaryon irritatus is a ciliate widely parasitic on bony fish in tropical and subtropical seawater. Because white spots visible to the naked eye will appear on the infected body surface, fin rays, and gills of fish, it is named "white spot disease". Cryptocaryon stimuli has no intermediate host, and its life history is divided into host parasitic period and free life period,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01K61/00
CPCA01K61/00Y02A40/81
Inventor 李安兴江飚
Owner SUN YAT SEN UNIV
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