About the Authors

Yongchun Yang

Affiliation College of Veterinary Medicine, Nanjing Agriculture University, Nanjing, China

Yinglong Liu

Affiliation College of Veterinary Medicine, Nanjing Agriculture University, Nanjing, China

Yunlei Ding

Affiliation College of Veterinary Medicine, Nanjing Agriculture University, Nanjing, China

Li Yi

Affiliation College of Veterinary Medicine, Nanjing Agriculture University, Nanjing, China

Zhe Ma

Affiliation College of Veterinary Medicine, Nanjing Agriculture University, Nanjing, China

Hongjie Fan

fhj@njau.edu.cn

Affiliation College of Veterinary Medicine, Nanjing Agriculture University, Nanjing, China

Chengping Lu

Affiliation College of Veterinary Medicine, Nanjing Agriculture University, Nanjing, China

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: YY HF CL. Performed the experiments: YY YL YD. Analyzed the data: YY ZM HF. Contributed reagents/materials/analysis tools: YY LY. Wrote the manuscript: YY HF.