Method for synchronously developing gonads of salamander parents

A giant salamander, male and female technology, applied in fish farming, application, climate change adaptation, etc., can solve problems affecting the reproduction speed of giant salamanders, etc.

Inactive Publication Date: 2009-05-27
黄俊海
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This will definitely affect the reproduction speed of giant salamanders

Method used

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  • Method for synchronously developing gonads of salamander parents
  • Method for synchronously developing gonads of salamander parents
  • Method for synchronously developing gonads of salamander parents

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Experimental program
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Embodiment Construction

[0009] 1 Materials and methods

[0010] 1.1 Feeding conditions and methods

[0011] The giant salamanders used are the first-generation giant salamanders incubated by the farm itself. Raise the young salamanders in giant salamander ponds, each with an area of ​​16M 2 , the pool depth is 0.45M, and the water depth is 0.20M. Depending on the size of the individual, 12-40 giant salamanders are stocked in each pool. The water source is reservoir water, PH between 6.5-7.5, dissolved oxygen greater than 3.5mg / L, NH + The levels of +-N and residual chlorine are low, and the annual water temperature varies between 5-28°C. The bait is shrimp, silver carp block, crucian carp and so on.

[0012] 1.2 Effect of temperature on gonad development of giant salamander

[0013] The first generation of four-year-old giant salamanders was taken, and the male and female giant salamanders were raised in cement pools with different water temperatures under artificially controlled water temperatu...

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Abstract

A method for synchronously developing the sex glands of male and female giant salamander parents includes such steps as culturing the male ones and female ones in different ponds, and changing the environmental factors of female ones to make the different from that of male ones.

Description

technical field [0001] The invention relates to a method for synchronizing the male and female gonad development of giant salamander broodstock. Background technique [0002] Chinese giant salamander, commonly known as salamander, baby fish, etc., belongs to Amphibians, Cauraceae, and Cryptobranchidae in animal taxonomy. It is a precious and rare tailed amphibian. Under natural conditions, wild giant salamanders are sexually mature at about 5 years old, and the average annual accumulated temperature of sexual maturity is 5950°C. For giant salamanders that have reached sexual maturity, their gonad development changes with the seasonal cycle, and the gonads of female salamanders usually mature in summer. , while male salamanders are mainly in autumn. This asynchrony of gonad development may be one of the main reasons for the low reproductive rate of wild giant salamanders. This phenomenon still exists in artificial breeding. Under the same breeding conditions, the sexual mat...

Claims

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Application Information

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Patent Type & AuthorityPatents(China)
IPC IPC(8): A01K61/00
CPCY02A40/81
Inventor黄俊海
Owner黄俊海