Device and method for incubating zygotes of fishes

A technology for fertilized eggs and fish, which is applied in the field of hatching devices for fish fertilized eggs, can solve the problems of farmers' economic losses, unsuitable hatching cycle, mildew and rot, etc., to prevent Saprolegnia infection and solve Saprolegniasis , the effect of promoting growth and development

Active Publication Date: 2016-06-01
ANHUI AGRICULTURAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The traditional method of controlling saprolegniasis in fish is to control the hatching temperature of fish eggs, but this method is not suitable for sand pond snakehead eggs with a long incubation period
Channa is a small fish with very delicious meat. The hatching cycle of the eggs of this fish is usually 28-30 days. The long hatching period leads to the infection o...

Method used

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  • Device and method for incubating zygotes of fishes
  • Device and method for incubating zygotes of fishes
  • Device and method for incubating zygotes of fishes

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] A, drop into niclosamide in the water body in pond, the input amount of niclosamide of every meter water depth of every mu pond is controlled at 2kg;

[0043] After b, 7 days, then drop into copper sulfate in the water body in the pond, the input amount of copper sulfate per meter of water depth of pond per mu is controlled at 0.75kg;

[0044] After c, 4 days, in the water body in pond, drop into chlorine dioxide again and carry out disinfection, the input amount of chlorine dioxide is 200g; (usually the preferred 200g of input amount of chlorine dioxide in hot weather, preferred 150g in low temperature weather, preferred 180g in breeding season.)

[0045] d. After 2 days, the chlorine dioxide becomes ineffective, and the above-mentioned water body is used for spawning and hatching of fish eggs; the process of spawning and hatching of fish eggs is carried out in the hatching pond, and the process of spawning and hatching of fish eggs starts the first The first water inl...

Embodiment 2

[0047] A, drop into niclosamide in the water body in pond, the input amount of niclosamide of every meter water depth of every mu pond is controlled at 3kg;

[0048] After b, 10 days, then drop into copper sulfate in the water body in the pond, the input amount of copper sulfate per meter of water depth of every mu of pond is controlled at 1.25kg;

[0049] After c, 5 days, in the water body in the pond, drop into chlorine dioxide again and carry out disinfection, the input amount of chlorine dioxide is 150g;

[0050] d. After 2 days, the chlorine dioxide becomes ineffective, and the above-mentioned water body is used for spawning and hatching of fish eggs; the process of spawning and hatching of fish eggs is carried out in the hatching pond, and the process of spawning and hatching of fish eggs starts the first The first water inlet and the shower at the second water inlet.

Embodiment 3

[0052] A, drop into niclosamide in the water body in pond, the input amount of niclosamide of every meter water depth of every mu pond is controlled at 2.5kg;

[0053] After b, 8 days, then drop into copper sulfate in the water body in the pond, the input amount of copper sulfate of every meter water depth of every mu pond is controlled at 1kg;

[0054] After c, 5 days, in the water body in pond, drop into chlorine dioxide again and carry out disinfection, the input amount of chlorine dioxide is 180g;

[0055] d. After 2 days, the chlorine dioxide becomes invalid, and the above-mentioned water body is used to carry out spawning and egg hatching of perch; The shower head at the water inlet and the second water inlet.

[0056] In the above embodiment, when the treated water body is used for the hatching of fish eggs, no saprolegniasis and anoxic rot appear in the fish eggs, and the hatching rate of the fish eggs is high.

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Abstract

The invention belongs to the field of fish breeding, and mainly relates to a device for incubating zygotes of fishes. The device comprises an incubating pond. A first water inlet is formed in the bottom of the incubating pond, a second water inlet is formed in a position above the incubating pond, and artificial fish nests for collecting roes are arranged in the incubating pond. A shower head for spraying water into the incubating pond is connected to the second water inlet. The device has the advantages that water is supplied into the incubating pond from bottom to top by the first water inlet in the bottom of the incubating pond, so that water in the incubating pond can be always in a flowing state, sufficient oxygen in the water can be guaranteed, oxygen deficient conditions of the roes due to the fact that the roes cohere with one another can be prevented, and the roes can be assuredly normally incubated; the water can be sprayed on a water surface of the incubating pond from top to bottom by the second water inlet, impact force of the water can be relieved by a shower head structure under the condition that requirements on water changing quantities are met and water flow is guaranteed, and accordingly the zygotes and/or fish fry just out of membranes can be prevented from being burst open by the water flow.

Description

technical field [0001] The invention belongs to the field of fish breeding, and in particular relates to a hatching device and a hatching method for fertilized fish eggs. Background technique [0002] Saprolegniasis is widely found in freshwater or brackish waters and moist soils all over the world. It is a kind of common mold that saprophytes on dead organic matter. In the process of fish rearing, fish eggs are very easy to encounter Saprolegniasis infection and get Saprolegniasis. The traditional method of controlling saprolegniasis in fish is to control the hatching temperature of fish eggs, but this method is not suitable for the eggs of sandfish with a long incubation period. Channa is a small fish with very delicious meat. The hatching cycle of the eggs of this fish is usually 28-30 days. The long hatching period leads to the infection of the fish eggs before hatching. Once infected with saprolegniasis, usually once infected with saprolegniasis, the fish eggs are bas...

Claims

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Application Information

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IPC IPC(8): A01K61/00A01K63/04
CPCA01K63/04Y02A40/81
Inventor 余鹏万全吴咸领刘映彬王旭王菲菲宋新欢吴根发
Owner ANHUI AGRICULTURAL UNIVERSITY
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