Funding for this research was provided by:
Ministry of Agriculture of the People's Republic of China (China Agriculture Research System-48)
Government of Shandong Province (LJNY2015002)
Text and Data Mining valid from 2019-08-19
Received: 28 April 2018
Accepted: 4 August 2019
First Online: 19 August 2019
Ethics approval and consent to participate
: The study protocol was approved by the Institutional Animal Care and Use Committee, Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, China.
: Not applicable.
: The authors declare that they have no competing interests.