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A method for artificial reproduction of spring water fish

A technology for artificial reproduction and spring water fish, applied in fish farming, application, climate change adaptation, etc., can solve the problem that male and female individuals have no obvious secondary sexual characteristics, the difficulty of germplasm resource recovery is increased, and the absolute number of eggs pregnant by female fish is small, etc. problems, to achieve the effect that is conducive to maintenance and recovery, easy to artificially domesticate, and has significant inter-individual differences

Inactive Publication Date: 2017-11-24
GUIZHOU WUJIANG HYDROPOWER DEV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the slow growth of spring water fish, the amount of resources has decreased sharply, the absolute number of female fish has a small number of eggs, and the male and female individuals have no obvious secondary sexual characteristics. The continuity of the river has increased the difficulty of restoring germplasm resources.

Method used

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  • A method for artificial reproduction of spring water fish
  • A method for artificial reproduction of spring water fish
  • A method for artificial reproduction of spring water fish

Examples

Experimental program
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Effect test

Embodiment 1

[0022] A method for artificial propagation of spring water fish, the steps are:

[0023] 1) Select mature and vigorous spring water fish as parents; select spring water fish with a body length of 18 or 20 or 23 or 25 or 28 or 30 cm, 2 or 3 or more than 3 years old as parents;

[0024] 2) Enhanced parental cultivation:

[0025] a) Choose an outdoor cement pool with a length, width and height of 15×25×1.3m as the cultivation pond, cultivated in a micro-flow environment, and the water replenishment volume is 2.5 or 3 or 3.5m 3 / h, the breeding density is 80 or 90 or 100 tails / pond, the bottom of the pond is made of gravel and pebbles, and it is laid with a slope of 24 or 25 or 26° from the water inlet to the water outlet, and the thickness is 28 or 29 or 30 or 31 or 32cm; Feed artificial compound feed (Gaolong brand yellow catfish adult fish feed), mealworms, green vegetables (lettuce, lettuce leaves, etc.) 2 or 3 times, 3 or 4 or 5 hours each time;

[0026] b) From the end of...

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Abstract

The invention discloses a method for artificial reproduction of pseudogy rincheilus procheilus. The method includes the steps that 1, mature and energetic pseudogy rincheilus procheilus is screened as parents; 2, the parents are cultured, wherein a, an outdoor cement pool is selected as a culture pool; b, gonad development of the parents is promoted through combination of hypophysis cerebri intramuscular injection and water level regulation stimulation, and culture is conducted; 3, artificial spawning induction is conducted, wherein after the water temperature in the middle ten days of April is reached, mature parents are screened in a hauling mode, and artificial spawning induction is conducted through a two-needle injection method; 4, artificial egg taking is conducted, wherein living body semen and egg collection is conducted; 5, artificial insemination is conducted, wherein artificial insemination is conducted on semen and egg individuals; 6, artificial incubation is conducted, wherein fertilized ova are washed with water for incubation, talcum powder or fresh milk is added for unsticking, after being completely washed, the fertilized ova are poured into Yushchenko incubation frames, dead ova are picked out after incubation, and after fry yolk sacs disappear and flatly swim, fry are moved out of incubation equipment and transferred into a fry culture cylinder to be cultured. The method is feasible and easy and convenient to operate, the fertilization rate and the incubation rate are high, the survival rate and the bait utilization rate are high, and the growth speed is higher than that of wild individuals.

Description

technical field [0001] The invention belongs to the technical field of germplasm resource protection of aquatic wild animals, and more specifically relates to a method for artificial reproduction of spring water fish. It is especially suitable for natural population restoration and artificial conservation of spring water fish. Background technique [0002] Spring fish Pseudogy rincheilus procheilus (Sauvage et Dabry), belongs to Cyprinidae, Cyprinidae, Dabry subfamily, spring fish genus, place name: spring fish, oil fish. It inhabits the middle and lower layers of waters with high river speeds. It likes to live in mountain streams, caves with flowing water, and places where rivers have springs. It often uses its mouth to scrape and eat attached animals, plants and other organic substances on the rocks at the bottom of the river, and rarely enters the still water body where the stratum is sludge. During the reproductive season, it swims upstream to lay eggs. Generally grow ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01K61/10
CPCA01K61/00Y02A40/81
Inventor 杨宝银郑海涛杨焱梁银栓
Owner GUIZHOU WUJIANG HYDROPOWER DEV
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