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Breeding method for paracobitis variegatus fries and incubator used for hatching oosperms of paracobitis variegatus

A technology of red-tailed loach and incubator, which is applied in the field of fish farming to achieve the effects of increasing hatching rate, improving quality, and improving quality

Active Publication Date: 2015-12-09
SHENNONGJIA FORESTRY DISTRICT JIAYUAN TECH CULTIVATION CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the general incubator adopts upper spraying water to keep the water flowing slightly, but it will inevitably generate directional water flow, so that fertilized eggs will gather along the direction of water flow

Method used

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  • Breeding method for paracobitis variegatus fries and incubator used for hatching oosperms of paracobitis variegatus

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0053] In the Shennongjia forest area at an altitude of 300m, broodstock selection of red-tailed paraloach was carried out. The specific breeding methods are as follows:

[0054] 1) Select parent fish: Select sexually mature red-tailed loach over the age of three as parent fish. The body is plump, the abdomen is swollen and round, and the genital pores are ruddy.

[0055] 2) Feed 5 days of induced labor feed before the breeding season.

[0056] 3) Artificial oxytocin: During the breeding season, inject compound oxytocin hormone to the selected parent fish to induce spawning and ejaculation. The injection method is a single intramuscular injection, and the injection site is: inject at the base of the dorsal fin at an angle of 40 degrees. When in use, dilute it with normal saline Preparation, injection dose: 0.1ml for each female fish, 0.05ml for male fish.

[0057] 4) Oxygenation management: put the broodstock after artificial induction into the spawning pond at a ratio of 1:...

Embodiment 2

[0062] The red-tailed paraloach broodstock was selected in the water system at an altitude of 750m in the Shennongjia forest area. The specific breeding methods are as follows:

[0063] 1) Select parent fish: Select sexually mature red-tailed loach over the age of three as parent fish. The body is plump, the abdomen is swollen and round, and the genital pores are ruddy.

[0064] 2) Feed 5 days of induced labor feed before the breeding season.

[0065] 3) Artificial oxytocin: During the breeding season, inject compound oxytocin hormone to the selected parent fish to induce spawning and ejaculation. The injection method is a single intramuscular injection, and the injection site is: inject at the base of the dorsal fin at an angle of 40 degrees. When in use, dilute it with normal saline Preparation, injection dose: 0.1ml for each female fish, 0.05ml for male fish.

[0066] 4) Oxygenation management: put the broodstock after artificial induction into the spawning pond at a rati...

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Abstract

The invention discloses a breeding method for paracobitis variegatus fries and an incubator used for hatching oosperms of the the paracobitis variegates. The breeding method comprises parent fish selection, cultivation before spawning induction, artificial spawning induction, management after spawning induction, artificial dry-method fertilization, oosperm incubation, and management of paracobitis variegatus fries. Paracobitis variegatus fries can be obtained after the above process. In the step of cultivation before spawning induction, feeding spawning induction forage 5 to 7 days before a breeding season, and the spawning induction forage comprises fish meal, casein, soybean meal, soybean phosphatide, starch, unsaturated fatty acid, vitamin E, vitamin B5, vitamin B6, alanyl-glutamine, selenium powder and DOM. In the step of artificial spawning induction, injecting composite oxytocic to parent fishes after feeding the spawning induction forage after the breeding season to induct the parent fishes to lay eggs and ejaculate. The incubator comprises a box body and a cover body, the cover body has a double-layer structure, a filtering medium is filled in the interlayer, the filtering medium forms a plurality of diversion channels after passing through holes and extends to 2 to 5 cm above the liquid level in the box body.

Description

technical field [0001] The invention relates to the technical field of fish farming, in particular to a method for breeding red-tailed loach fry and an incubator for hatching fertilized eggs thereof. Background technique [0002] Red-tailed loach is a precious wild fish species that lives in the water system at an altitude of 200-800m. It has bright color, tender meat, delicious taste, rich nutrition, and high economic value. Due to various reasons such as pollution, the red-tailed loach has been on the verge of extinction in some areas, and some scientific research units have started research on the breeding of the red-tailed loach, but due to various reasons, the results have been minimal, and it cannot satisfy the market for mass breeding. need. [0003] In addition, the fertilized eggs in the fry breeding process are generally hatched by hatching tanks and incubators. The hatching of fertilized eggs has very strict requirements on water quality, temperature, light and o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01K61/00A23K1/18A23K1/10A23K1/16A23K1/14A23K1/175
CPCA01K61/00Y02A40/81
Inventor 查先华
Owner SHENNONGJIA FORESTRY DISTRICT JIAYUAN TECH CULTIVATION CO LTD
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