Wang, Shuxiang
Azarfar, Arash
Wang, Yajing
Cao, Zhijun
Li, Shengli
Funding for this research was provided by:
Funding for the study was provided by the National Dairy Industry and Technology System (Beijing, P. R. China).
Article History
Received: 13 March 2018
Accepted: 3 July 2018
First Online: 3 September 2018
Ethics approval
: All protocols for sampling and handling of animals were approved by the Institutional Animal Care and Use Committee at China Agricultural University (Beijing, P. R. China). The experiment was conducted according to the regulations and guidelines established by this committee.
: Not applicable.
: The authors declare that they have no competing interests.