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A method for preventing fish eggs from suffering from saprolegniasis
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A technology for saprolegnia and fish eggs, applied in the field of fish breeding, can solve problems such as saprolegnia, and achieve the effects of ensuring good development, improving fertilization rate and high hatching rate
Active Publication Date: 2018-12-21
ANHUI AGRICULTURAL UNIVERSITY
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Abstract
Description
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Problems solved by technology
[0003] In order to solve the above-mentioned technical problems, the present invention provides a method for preventing fish eggs from suffering from saprolegniasis in the breeding process. The method can be widely used in the fish breeding process, especially for the long hatching period of fish eggs. The method effectively solves the problem of saprolegniasis in the hatching process of fish eggs
Method used
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Effect test
Embodiment 1
[0024] a, store full of water in the pond first; then drop niclosamide into the water body in the pond, and the input amount of niclosamide per meter of water depth in every mu of pond is controlled at 2kg;
[0025] b. After 7 days, add copper sulfate to the water body in the pond, and the input amount of copper sulfate per meter of water depth in each mu of pond is controlled at 0.75kg;
[0026] After c, 4 days, finally drop chlorine dioxide into the water body in the pond to carry out disinfection, chlorine dioxide input amount 200g when high temperature;
[0027] d. After 2 days, the chlorine dioxide is invalidated, and the above-mentioned water body is used to hatch the eggs of the sand pond snakehead.
Embodiment 2
[0029] 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;
[0030] b. After 10 days, add copper sulfate to the water body in the pond, and the input amount of copper sulfate per meter of water depth in each mu pond is controlled at 1.25kg;
[0031] After c, 5 days, finally drop chlorine dioxide into the water body in the pond to carry out disinfection, chlorine dioxide input amount 150g when high temperature;
[0032] d. After 2 days, the chlorine dioxide becomes ineffective, and the above-mentioned water body is used to hatch the eggs of the sand pond snakehead.
Embodiment 3
[0034] 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;
[0035] After b, 8 days, add copper sulfate to the water body in the pond again, and the input amount of copper sulfate per meter of water depth in each mu pond is controlled at 1kg;
[0036] After c, 5 days, in the water body in pond, drop into chlorine dioxide at last and carry out disinfection, the input amount of chlorine dioxide is 180g;
[0037] d. After 2 days, the chlorine dioxide becomes invalid, and the water body is used to hatch the perch eggs.
[0038] In the above embodiment, when the treated water body is used for fish reproduction, no saprolegniasis infection occurs in the fish eggs, and the hatching rate of the fish eggs is high.
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PUM
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Abstract
The invention belongs to the field of fish breeding, and particularly relates to a method for preventing roes from being attacked by saprolegniasis.The method for preventing roes from being attacked by saprolegniasis includes the operation steps that a pond is filled with water, niclosamide is put into a water body in the pond, and the input amount of niclosamide is controlled in the mode that 2-3 kg niclosamide is put in per meter of water depth in each mu of pond; 7-10 days later, copper sulfate is put into the water body in the pond, and 0.75-1.25 kg of copper sulfate is put in per meter of water depth in each mu of pond; 4-5 days later, chlorine dioxide is put into the water body in the pond for disinfection, and the input amount of chlorine dioxide is 150-200 g; 2 days later, the water body is used for the roe hatching process.Pathogene can be killed at the water source, the method is widely applied in the fish breeding process, particularly for famous and special fishes such as micropterus salmoide laying viscid roes and odontobutis obscura with a long roe hatching cycle, the problem that the roes are attacked by saprolegniasis in the hatching process is effectively solved by using treated water body for roe hatching, and the hatching rate is high.
Description
technical field [0001] The invention belongs to the field of fish breeding, and in particular relates to a method for preventing saprolegniasis in fish eggs during reproduction. 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 fish saprolegniasis is to control the hatching temperature of fish eggs, but in the early stage of breeding, the water temperature in the outer pond is low, the heating process is troublesome and the effect is not ideal; moreover, this method is not suitable for a long incubation period Channa roe. 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 ...
Claims
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Application Information
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