Method for improving mating rate of male and female giant salamander parents

A giant salamander, parent technology, applied in climate change adaptation, animal husbandry, etc., can solve problems such as less than 60%, affecting the artificial breeding rate of giant salamanders, etc.

Active Publication Date: 2021-05-11
ZHEJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Even if the parents of giant salamanders are sexually mature, during the breeding season, the male salamanders discharge the sand and stones in the cave, and are responsible for building and protecting the nests in the cave, while the female salamanders stay in the spawning

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] The spawning ditch is designed to be 12m long x 0.7m wide x 0.6m high, and every 3m is separated by a screen to ensure that there is less interference between each pair of male and female salamanders. The drop height is about 12cm, allowing the water to flow naturally according to the drop. A certain amount of coarse sand and small pebbles are laid on the bottom of the spawning ditch, and aquatic plants such as calamus are planted to simulate the natural environment. 2 caves are respectively built on both sides of each spawning ditch, and the cave spacing is 40cm. The openings on both sides are staggered, the openings are 15cm wide and 15cm high, the diameter of the cave is about 110cm, and the height from the bottom to the top of the cave is about 45cm. Dig the bottom of the cave 15cm deep, use cement as the bottom, and spread some sand and pebbles on top. The roof of the cave is covered with cement boards, etc., leaving a 30cm×30cm gap covered with foam boards, which...

Embodiment 2

[0029] The spawning ditch is designed to be 12m long x 0.7m wide x 0.6m high, and every 3m is separated by a screen to ensure that there is less interference between each pair of male and female salamanders. The drop height is about 12cm, allowing the water to flow naturally according to the drop. A certain amount of coarse sand and small pebbles are laid on the bottom of the spawning ditch, and aquatic plants such as calamus are planted to simulate the natural environment. 2 caves are respectively built on both sides of each spawning ditch, and the cave spacing is 40cm. The openings on both sides are staggered, the openings are 15cm wide and 15cm high, the diameter of the cave is about 110cm, and the height from the bottom to the top of the cave is about 45cm. Dig the bottom of the cave 15cm deep, use cement as the bottom, and spread some sand and pebbles on top. The roof of the cave is covered with cement boards, etc., leaving a 30cm×30cm gap covered with foam boards, which...

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PUM

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Abstract

The invention discloses a method for improving the mating rate of female and male giant salamander parents. The method comprises the following steps of feeding giant salamanders with live egg-carrying freshwater shrimps with the specification of 3-4 cm 30-40 days before the mating period of the giant salamanders, feeding the giant salamanders once every day, enabling the daily feeding quantity to be 3%-5% of the weight, ensuring that the egg-carrying freshwater shrimps are slightly left after the giant salamanders eat the egg-carrying freshwater shrimps, continuously feeding the giant salamanders with the egg-carrying freshwater shrimps for 30-40 days, entering the mating period, and then enabling the female giant salamanders to start to mate in holes. According to the method, the live egg-carrying freshwater shrimps are fed about one month before the mating period, the mating rate of the female and male giant salamander parents is increased by 60% or above, the final mating rate can be increased to 92.5% or above, the bottleneck problem that the mating rate of the giant salamander parents is low in the current situation is solved, and the economic benefits of giant salamander breeding are greatly increased. According to the method, live baits are adopted for feeding, operation is convenient, and the problem of water pollution caused by residual dead baits such as fish blocks does not exist.

Description

technical field [0001] The invention relates to a method for increasing the mating rate of male and female giant salamander parents. Background technique [0002] Chinese giant salamander (Andrias davidianus), referred to as giant salamander, commonly known as giant salamander, is an amphibian animal evolved from fish in the Devonian period of the Paleozoic Era. It is called a "living fossil". It lives in streams in mountainous areas. Living in caves with little sand and backflow water, it is a rare and unique wild animal in my country and is listed as a second-class national protected animal. Giant salamander is a good material for carrying out scientific research on biological evolution and biodiversity, and it also has extensive development value in food, health care, medicine, ornamental and other aspects. In recent years, thanks to the efforts of scientific and technological personnel and farmers, giant salamander reproductive technology has become increasingly mature, ...

Claims

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Application Information

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IPC IPC(8): A01K67/02
CPCA01K67/02Y02A40/81
Inventor 舒妙安周忆莲董伟仁
Owner ZHEJIANG UNIV
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