Funding for this research was provided by:
Discipline Development Grant from College of Animal Sciences FAFU (2018DK008)
Natural Science Foundation of China (31402227)
Received: 4 July 2019
Accepted: 25 November 2019
First Online: 10 December 2019
Ethics approval and consent to participate
: This study was submitted to and approved by the Animal Ethics Committee of Fujian Agricultural and Forestry University Animal Care and Use Committee (Approval No: PZCASFAFU201604). The samples were collected and handled in accordance with the good animal practices required by the Animal Ethics Procedures and Guidelines of the People’s Republic of China.
: Not applicable.
: The authors declare that they have no competing interests.