Funding for this research was provided by:
The National Key Research and Development Program of China (2018YFD0501003)
The Outstanding Talents Training Program of Guangdong Academy of Agricultural Sciences, China Agriculture Research System (CARS-35)
Operating Funds for Guangdong Provincial Key Laboratory of Animal Breeding and Nutrition (2014B030301054)
Text and Data Mining valid from 2020-02-19
Received: 31 August 2019
Accepted: 22 December 2019
First Online: 19 February 2020
Ethics approval and consent to participate
: All experimental procedures followed the current law regarding animal protection (Ethic Approval Code: 5YXK2016–0165) and were approved by the Guide for the Care and Use of Laboratory Animals prepared by the Animal Care and Use Committee of Guangdong Academy of Agricultural Sciences.
: Not applicable.
: The authors declare that they have no competing interests.