Journal of Marine Biology and Aquaculture
Improved Method in Breeding and Artificial Propagation for Chinese Giant Salamanders (Andrias Davidianus)
- 1Institute of Fisheries, Anhui Academy of Agricultural Sciences, Hefei 230031, China
- 2Anhui Wanrun Chinese Giant Salamander Professional Cooperatives, Tongcheng 231400, China
Wang Yongjie, Institute of Fisheries, Anhui Academy of Agricultural Sciences, Hefei 230031, China, E-mail: firstname.lastname@example.org
Yongjie, W. et. al. Improved Method in Breeding and Artificial Propagation for Chinese Giant Salamanders (Andrias Davidianus). (2017) J Marine Biol Aquacult 3(2): 1- 5.
© 2017 Yongjie, W. This is an Open access article distributed under the terms of Creative Commons Attribution 4.0 International License.
KeywordsChinese giant salamanders; Artificial breeding; Fertilization rate; Hatching rate
Context: The hatching rate for Chinese giant salamanders is only around 5% ~10%, and the average female parent can breed only 10 to 30 progenies. Therefore, how to improve the hatching rate of artificial breeding is currently one of hot research topics.
Aims: By optimizing the key technique such as artificial insemination and incubation, it could improve the hatching rate.
Methods: During the hatch period in Chinese giant salamanders, a series measures including living bait feeding, flow control, temperature control and light regulation, could promote parental development synchronization.
Key results: Two batches of artificial breeding for Chinese giant salamanders were studied in 2016, the results showed that all 19 tails of female salamanders were spawned and a total of about 9,157 eggs were collected. The survival rate of the fertilized eggs reached to 85.6% after 24 hours. The average hatching rate was 72% after hatching to 35 days.
Conclusion: This is far better than 5% to 10% average rate reported previously for artificial breeding of Chinese giant salamanders.
Implications: These measures help to ensure salamander maturation, male and female parent development synchronization, and improved the germination rate of artificial breeding of salamanders.