Funding for this research was provided by:
National Natural Science Foundation of China (No.31960657, 31961143025)
Natural Science Foundation Special Project of Inner Mongolia (No.2017ZD06)
Science and Technology major project of Inner Mongolia (No.ZD20190039)
National Natural Science Foundation of Inner Mongolia (No.2019MS03064)
Youth Fund Project of Collage of Animal Science of Inner Mongolia Agricultural University (No.QN202006, QN201909)
National Basic Research Program of China (No.2017YFE0108700)
Received: 10 December 2019
Accepted: 10 September 2020
First Online: 22 September 2020
Ethics approval and consent to participate
: The present study was carried out in strict accordance with relevant guidelines and regulations by the Ministry of Agriculture of the People’s Republic of China. Specimens were collected following the institutional, national, or international guidelines and approved by the Animal Ethical Committee of Inner Mongolia Agricultural University.
: Not applicable.
: The authors declare that they have no competing interests.