Funding for this research was provided by:
National Natural Science Foundation of China (31072176, 31672614, 31802253)
Postdoctoral Research Foundation of China (2018M632398)
Natural Science Foundation of Jiangsu Province (BK20160062, BK2012265)
Priority Academic Program Development of Jiangsu Higher Education Institutions (none)
Natural Science Foundation of the Jiangsu Higher Education Institutions of China (17KJB230007)
Outstanding Young Backbone Teacher Foundation of Yangzhou University (none)
Topnotch Academic Programs Project of Jiangsu Higher Education Institutions (none)
Received: 22 December 2018
Accepted: 13 May 2019
First Online: 21 May 2019
: This study was approved by the Institutional Animal Care and Use Committee of Yangzhou University. All procedures involving dairy cows were performed in accordance with the Guide for Care and Use of Agricultural Animals of Yangzhou University. An informed written consent was obtained from the owner of the dairy cows.
: Not applicable.
: The authors declare that they have no competing interests.
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