Method for breeding giant salamanders

A technology for salamander and female fish, applied in animal husbandry and other directions, can solve the problems of small number, easy injury to salamander, trouble, etc., and achieve the effects of maintaining the original species of the population, improving the reproductive efficiency and increasing the number of reproductions.

Inactive Publication Date: 2019-02-19
黄山市鲵源渔业科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The patent of CN1336109A discloses the artificial breeding method of giant salamander, by putting male and female salamander in the breeding pond to carry out ovulation and fertilization, the reproduction of salamander has been realized, but, after the ovulation and fertilization of this method, the female fish is not captured in time, and the male and female fish will be separated. The phenomenon of cannibalism occurs, and eggs will be used to satisfy hunger, which greatly reduces the reproductive number of salamanders and cannot achieve the desired effect
[0004] The patent of CN1353927A discloses the method of artificial reproduction of giant salamander. Carp head and unique method are used to artificially induce labor and insemination to improve the gonad maturation rate of giant salamander, and then improve the fertilization rate and hatching r

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] A method for breeding salamanders, comprising the steps of:

[0034] S1. Around mid-August every year, classify salamanders according to their sexual maturity and male and female, and then place them separately to facilitate observation of salamanders;

[0035] S2, when the female fish is in estrus, choose a female fish with a body weight of 1.5KG and a age of 4 years;

[0036] S3. Observe the female fish and find that when the body of the female fish is red, help the female fish to make a nest for spawning to facilitate reproduction. The nest of the spawning nest is 0.7 meters long, 0.6 meters wide, and 0.4 meters high. There are slopes, and the slopes are made of cobblestones;

[0037] S4. Put water on the top of the spawning nest. The temperature of the water in the spawning nest is 18°C. The water flow should be from left to right. The flow rate of the water should be 0.1 m / s. male fish go down;

[0038] S5. The female fish and the male fish react quickly in the ...

Embodiment 2

[0044] A method for breeding salamanders, comprising the steps of:

[0045] S1. Around mid-August every year, classify salamanders according to their sexual maturity and male and female, and then place them separately to facilitate observation of salamanders;

[0046] S2, when the female fish is in estrus, choose a female fish with a body weight of 1.5KG and a age of 4 years;

[0047] S3. Observe the female fish and find that when the body of the female fish is red, help the female fish to make a nest for spawning to facilitate reproduction. The nest of the spawning nest is 0.7 meters long, 0.6 meters wide, and 0.4 meters high. There are slopes, and the slopes are made of cobblestones;

[0048] S4. Put water on the top of the spawning nest. The temperature of the water in the spawning nest is 18°C. The water flow should be from left to right. The flow rate of the water should be 0.1 m / s. male fish go down;

[0049] S5. The female fish and the male fish react quickly in the ...

Embodiment 3

[0055] A method for breeding salamanders, comprising the steps of:

[0056] S1. Around mid-August every year, classify salamanders according to their sexual maturity and male and female, and then place them separately to facilitate observation of salamanders;

[0057] S2, the female fish has reached the estrus period, and the female fish with a body weight of 2KG and a age of 4 years is selected;

[0058] S3. Observe the female fish and find that when the body of the female fish is red, help the female fish to make a nest for spawning to facilitate reproduction. The nest of the spawning nest is 0.8 meters long, 0.6 meters wide, and 0.4 meters high. There are slopes, and the slopes are made of cobblestones;

[0059] S4. Put water on the spawning nest. The temperature of the water in the spawning nest is 18°C. The water flow should be from left to right. The flow rate of the water should be 0.15 m / s. male fish go down;

[0060] S5. The female fish and the male fish react quic...

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Abstract

The invention discloses a method for breeding giant salamanders. The method comprises the following steps that S1, in about middle ten days of August every year, the giant salamanders are classified according to different conditions of sexual maturity and males and females of the giant salamanders and then placed separately; S2, after the female giant salamanders enter the rut, the female giant salamanders with the weight of 1.5-3.5 KG and 4-5 years old are selected; S3, the female giant salamanders are observed, when it is discovered that the bodies of the female giant salamanders become red,a nest for laying eggs is built for the female giant salamanders, and a slope is arranged in the nest; S4, water is added on the nest for laying eggs, the water flows from left to right, and after the female giant salamanders are adapted to the nest for a certain period of time, a male giant salamander larger than the female giant salamanders in size is placed in the nest; S5, the female giant salamanders and the male giant salamander can respond quickly. According to the method, the problem of low survival rate of fertilized ova is solved, and meanwhile the problem is also solved that hormones need to be injected during breeding; the situation is avoided that due to hormone injection, the service life of the giant salamanders is shortened, the breeding number of the giant salamanders isgreatly increased, the breeding quality of the giant salamanders is greatly improved, and the method is simple and convenient to use.

Description

technical field [0001] The invention relates to the technical field of giant salamander breeding, in particular to a method for breeding giant salamander. Background technique [0002] Giant salamander, also known as giant salamander, is an amphibian belonging to the family Cryptobranchidae. It is mainly distributed in the Yangtze River, the Yellow River and the Pearl River basin. It can reach 1 meter or more, and the heaviest can exceed 100 catties, and its shape is somewhat similar to a lizard, but it is fatter and flatter in comparison. Recently, scientists have studied that giant salamanders breathe with gills when they are young, and breathe with lungs when they grow up. Giant salamanders inhabit mountain streams, and live in caves with clear water, low sand content, turbulent water flow, and return water. Chinese giant salamanders are distributed in other provinces and regions except Xinjiang, Tibet, Inner Mongolia, and Taiwan. They are mainly produced in the mountai...

Claims

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Application Information

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IPC IPC(8): A01K67/02
CPCA01K67/02
Inventor 吴其能吴祥辉吴茶花
Owner 黄山市鲵源渔业科技有限公司
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