Study

Artificial propagation of tank-cultured Chinese giant salamander (Andrias davidianus)

  • Published source details Xiao H.-B., Liu J.-Y., Yang Y.-Q. & Lin X.-Z. (2006) 水槽飼育した中国オオサンショウウオ(Andrias davidianus)の人工繁殖. Acta Hydrobiologica Sinica, 30, 533-539.

Actions

This study is summarised as evidence for the following.

Action Category

Amphibians: Use hormone treatment to induce sperm and egg release

Action Link
Management of Captive Animals

Use hormone treatment to induce sperm and egg release during captive breeding

Action Link
Amphibian Conservation
  1. Amphibians: Use hormone treatment to induce sperm and egg release

  2. Use hormone treatment to induce sperm and egg release during captive breeding

    A small, replicated, controlled study of captive Chinese giant salamanders Andrias davidianus in China (Xiao et al. 2006) found that injection with reproductive hormones induced egg and sperm production. Eggs were produced by 60% of females given injections of lutenizing hormone-releasing hormone-a or human chorionic gonadotrophin (400–500 eggs). However, mating was not observed. Eggs were laid earlier following injection with human chorionic gonadotrophin compared to lutenizing hormone-releasing hormone and earlier with higher water temperatures. A single injection was more effective than repeated injections. Females produced eggs between 96–120 hours and sperm was produced after 80 hours. A 1°C drop in water temperature resulted in a 10 hour delay. Animals not injected with hormones did not produce eggs or sperm and reproductive organs degenerated and were absorbed. Wild-caught salamanders were housed in 16 m2 tanks.

     

Output references
What Works 2021 cover

What Works in Conservation

What Works in Conservation provides expert assessments of the effectiveness of actions, based on summarised evidence, in synopses. Subjects covered so far include amphibians, birds, mammals, forests, peatland and control of freshwater invasive species. More are in progress.

More about What Works in Conservation

Download free PDF or purchase
The Conservation Evidence Journal

The Conservation Evidence Journal

An online, free to publish in, open-access journal publishing results from research and projects that test the effectiveness of conservation actions.

Read the latest volume: Volume 18

Go to the CE Journal

Discover more on our blog

Our blog contains the latest news and updates from the Conservation Evidence team, the Conservation Evidence Journal, and our global partners in evidence-based conservation.


Who uses Conservation Evidence?

Meet some of the evidence champions

Endangered Landscape Programme Red List Champion - Arc Kent Wildlife Trust The Rufford Foundation Save the Frogs - Ghana Bern wood Supporting Conservation Leaders National Biodiversity Network Sustainability Dashboard Frog Life The international journey of Conservation - Oryx British trust for ornithology Cool Farm Alliance UNEP AWFA Butterfly Conservation People trust for endangered species Vincet Wildlife Trust