Saprolegniasis prevention and control method for gymnocypris potanini

A technology for prevention and control of Songpan naked carp is applied in the field of saprolegnia prevention and control during the breeding process of Songpan naked carp, which can solve the problems of prohibited drugs, loss, body surface loss, etc., and achieves simple operation, low cost and low morbidity rate. Effect

Inactive Publication Date: 2017-04-19
YANGTZE RIVER FISHERIES RES INST CHINESE ACAD OF FISHERY SCI +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Since Songpan naked carp is a cold-water scaleless fish, during the breeding process, especially in the breeding season, it is often necessary to check the development of the gonads, and the body surface is vulnerable to damage. Once Saprolegnia breaks out, it is easy to cause huge losses, and the traditional method is the most effective. The treatment method used illegal drugs. After our research, we invented a method for the prevention and control of saprolegniasis in the artificial breeding process of Songpan naked carp

Method used

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Examples

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Effect test

Embodiment 1

[0027] In the following, 300 Songpan naked carps will be cultured, the size is 12-50g / tail, and the breeding cycle is 10 months. A method for preventing and controlling water mold of Songpan naked carp, the steps are:

[0028] 1. Water quality requirements: flowing water culture tank, diameter 2 meters, bucket depth 1.5 meters, water depth 0.5 meters, dissolved oxygen above 6.5 mg / L and below 10.5 mg / L, for running water culture, ammonia nitrogen is controlled below 0.05 mg / L.

[0029] 2. Water flow: By controlling the direction and size of the water inlet, the speed of the flowing water is controlled at 0.3m / s.

[0030] 3. Feeding requirements: After temporary breeding and domestication, feed the commercially available 0.8 rainbow trout juvenile feed, and the daily feeding amount is 120 grams.

[0031] 4. Medication: every 10 days, the whole pond is sprinkled with oxytetracycline at a concentration of 30ppm, and the dosage is 47.1 grams per barrel.

[0032] 5. Vitamins: Eve...

Embodiment 2

[0035] The following is an example of 100 Songpan naked carp broodstock after breeding, the size of which is 25-50 g / tail.

[0036] A method for preventing and controlling water mold of Songpan naked carp, the steps are:

[0037] 1. Water quality requirements: flowing water culture tank, diameter 2 meters, bucket depth 1.5 meters, water depth 0.5 meters, dissolved oxygen above 6.5 mg / L and below 10.5 mg / L, for running water culture, ammonia nitrogen is controlled below 0.05 mg / L.

[0038] 2. Water flow: Use a pump or adjust the water volume and direction of the water inlet to control the speed of the water at 0.3m / s.

[0039] 2. Feeding requirements: After induction of labor, feed 0.8# juvenile rainbow trout feed on the market, with a daily feeding amount of 50 grams.

[0040] 3. Postpartum recovery: After induced labor, first soak in glucose and ATP (adenosine triphosphate) solution, add 10 grams of glucose and 2 grams of ATP per liter of water, mix well, and soak the postpa...

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Abstract

The invention discloses a saprolegniasis prevention and control method for gymnocypris potanini. The method includes the steps that A, a flowing water breeding barrel is needed, flowing water breeding is performed, and ammonia nitrogen is controlled below 0.05 mg / L; B, water flow is controlled, wherein the speed of flowing water is controlled through a water pump or by adjusting the direction and the magnitude of water flow of a water inlet; C, throwing for feeding is performed, wherein after temporary raising and food domesticating, rainbow trout juvenile fish feed is thrown for feeding; D, drug use is performed, wherein the water amount is measured and calculated according to the area of a pond and the water depth, and oxytetracycline is splashed; E, vitamins are used, wherein vitamin C is splashed in the whole pond; and F, saprolegniasis prevention and control are performed for parent fish after delivery, wherein after hormone injection and spawning induction for egg squeezing, under the water temperature of a breeding season, and on the basis that daily prevention and control is kept, prevention and control measures include that a, soaking of glucose and a triphosadenine solution is performed after delivery; and b, antibiotics are thrown for feeding, wherein ampicillin is added in each kilogram of feed, and after stirring and uniform mixing, throwing for feeding is performed. The method is easy to execute, and easy and convenient to operate, effectively prevents generation of saprolegniasis in the breeding process of the gymnocypris potanini and after spawning induction, and a basis is laid for the species protection work of the gymnocypris potanini.

Description

technical field [0001] The invention belongs to the technical field of aquaculture, and more specifically relates to a method for preventing and controlling saprolegniasis in the cultivation process of Songpan naked carp, which is suitable for the prevention and control of saprolegniasis in the artificial cultivation process of Songpan naked carp and after induced labor, and is suitable for cold-water fish The prevention and control of saprolegniasis in the artificial breeding process also has certain effect. Background technique [0002] Songpan naked carp (Gymnocypris potanini) belongs to Cyprinidae, Cyprinidae, and the genus Gymnocypris, commonly known as forest leaves, cold water fish, cold water sticks, etc. It is also an important cold-water economic fish unique to China. It is mainly distributed in the upper tributaries of the Yangtze River and other areas, including the Minjiang River, Dadu River, Lancang River, Jinsha River, Yalong River and other river basins. ...

Claims

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Application Information

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IPC IPC(8): A01K61/13
CPCA01K61/00Y02A40/81
Inventor 朱祥云魏开金徐滨邓龙君甘维熊马宝珊徐进刘小帅曾如奎
Owner YANGTZE RIVER FISHERIES RES INST CHINESE ACAD OF FISHERY SCI
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