1 School of Life Science, Ludong University, Yantai 264025, Shandong, China;Yantai Key Laboratory of Animal Pathogenetic Microbiology and Immunology, Yantai 264025, Shandong, China.
2 Shandong Provincial Key Laboratory of Quality Safety Monitoring and Risk Assessment for Animal Products, Jinan 250022, Shandong, China.
3 School of Life Science, Ludong University, Yantai 264025, Shandong, China.