Artificial propagation method of Odontobutis obscura

A technology of artificial breeding and sand snakehead, applied in fish farming, application, climate change adaptation, etc., can solve the problems such as the hatching rate of sand snakehead that has not been seen

Inactive Publication Date: 2011-01-05
CHANGSHU INSTITUTE OF TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Well-known reason, hatching rate is the precondition of frying rate, that is to say, only raising hatching rate, seeding rate just has guarantee, yet in disclosed patent and non-patent literature, all do not see how to improve The technical enlightenment of the hatching rate of sand pond snakehead, for this reason the applicant has carried out long-term exploration and attempt, has found the way to solve the problem, and the technical scheme that will introduce below is to produce under this background

Method used

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Experimental program
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Effect test

Embodiment 1

[0028] 1) broodstock selection: choose the female and male sand pond snakeheads that are disease-free and harmless and have reached sexual maturity over one age as the parent fish, and the sexual maturity sign of the female broodstock is: abdomen swells, when the abdomen is gently pressed Viscous and glossy sticky eggs can be squeezed out. The signs of sexual maturity of male broodstock are: smooth body surface, full testes can be seen after laparotomy, and the sperm motility is good through microscope inspection, and the proportion of motile sperm is large. To be precise, the motile sperm account for more than 70% of the sperm count, and the selected female and male Channa broodstock are separated, that is, respectively introduced into the breeding pond of the female Channa broodstock and the broodstock breeding pond of the male Channa pagoda, Obtain broodstock (also can be called parent), the cultivation pond described in this step is indoor cement pond (also can be called br...

Embodiment 2

[0035] Only change the temperature of the female broodstock cultivation pond into 20°C in II), change the temperature of the male broodstock cultivation pond into 15°C; change the mass percentage concentration of the normal saline in step III) into 0.8%, the normal saline The amount is changed to 8ml (consumption for a pair of testis of a male broodstock); the time of lightly stirring with feathers in step IV) is changed to 3min; the density of fertilized eggs in the hatching bucket in step V) is changed to 20 capsules / ml, the incubation temperature of the fertilized eggs was changed to 23°C when the fertilized eggs began to hatch, and the temperature was changed to 27°C when the fertilized eggs developed to organ differentiation after 3 days, the hatching time was changed to 15 days (15 days), and the fertilization rate was 67.5 %, the hatching rate was 26.9%. All the other are the same as the description to embodiment 1.

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Abstract

The invention relates to an artificial propagation method of Odontobutis obscura, belonging to the technical filed of artificial fish breeding, and comprising the following steps: parent fish selection; parent fish breeding; artificial insemination; germ cell delamination; artifical incubation; and fry breeding. The technical scheme provided by the invention solves the technical problem that the germ cell of the Odontobutis obscura is easy to mildew and rot, can ensure the fertility rate and rate of hatchability which are respectively over 66% and over 26%. The invention has simple operation, is not rigour, has wide applicability and can meet the requirement of industrialization breed in batch.

Description

technical field [0001] The invention belongs to the technical field of fish artificial propagation, and in particular relates to an artificial propagation method of snakehead. Background technique [0002] Odontobutis obscurus (English: Odontobutis obscurus), also known as Odontobutis obscurus, belongs to the order Perciformes, Odontobutis obscurus, and Odontobutis obscurus. Common names: Black Grass Bun, Grass Po Fish, Tubu Fish, Pond Channa, Tucai Fish, Tuhanba, etc. In my country, it is mainly distributed in the middle and lower reaches of the Yangtze River and its tributaries, the Qiantang River system and the Minjiang River system and other vast areas. Although the individual of sand pond snakehead is small, it has the characteristics of high meat content, few spines, tender and delicious meat and rich nutrition. Every 100 grams of channa meat contains 18.39g of protein, 0.98g of fat, 0.42g of calcium, phosphorus, iron and vitamins. The essential amino acids and umam...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01K61/00
CPCY02A40/81
Inventor 徐建荣韩晓磊任丽珍张君程利民
Owner CHANGSHU INSTITUTE OF TECHNOLOGY
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