Funding for this research was provided by:
grants from National Natural Science Fund of China (31672556)
grants from National Natural Science Fund of China (31502064)
Primary Research & Developement Plan of Shandong Province (2016GNC113006)
Shandong Major Agricultural Application Technology Innovation Project, Primary Research & Developement Plan of Shandong Province (2018GNC113011)
Received: 11 June 2018
Accepted: 9 October 2018
First Online: 20 November 2018
Ethics approval and consent to participate
: Experimental protocols for collecting bovine clinical samples were carried out in strict accordance with the Animal Ethics Procedures and Guidelines of the People’s Republic of China, and the animal study proposal was approved by Shandong Normal University Animal Care and Use Committee. All cattle owners signed an informed consent before participation in the study.
: Not applicable.
: The authors declare that they have no competing interests.
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