Funding for this research was provided by:
National Natural Science Foundation of China (31425025, 31630078, 31602042)
Text and Data Mining valid from 2019-05-22
Received: 11 March 2019
Accepted: 16 May 2019
First Online: 22 May 2019
Ethics approval and consent to participate
: The research was reviewed and approved by the Research Ethics Committee of the East China University of Science and Technology, with the approval number of 2015018. Permission was obtained from the farm owner for the specimen collection. Animals were handled in accordance with the Animal Ethics Procedures and Guidelines of the People’s Republic of China. The specimens used in the study consisted of fecal droppings collected from the floor of cages in the animal facility, with no animal handling during the specimen collection.
: Not applicable.
: The authors declare that they have no competing interests.