About the Authors

Yu-Xiang Liu

Affiliation College of Animal Science and Veterinary Medicine, Shandong Agricultural University, Tai-an City, People's Republic of China

Ya-Nan Cheng

Affiliation College of Animal Science and Veterinary Medicine, Shandong Agricultural University, Tai-an City, People's Republic of China

Yi-Long Miao

Affiliation College of Animal Science and Veterinary Medicine, Shandong Agricultural University, Tai-an City, People's Republic of China

De-Li Wei

Affiliation College of Animal Science and Veterinary Medicine, Shandong Agricultural University, Tai-an City, People's Republic of China

Li-Hua Zhao

Affiliation College of Animal Science and Veterinary Medicine, Shandong Agricultural University, Tai-an City, People's Republic of China

Ming-Jiu Luo

Affiliation College of Animal Science and Veterinary Medicine, Shandong Agricultural University, Tai-an City, People's Republic of China

Jing-He Tan

tanjh@sdau.edu.cn

Affiliation College of Animal Science and Veterinary Medicine, Shandong Agricultural University, Tai-an City, People's Republic of China

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: JHT. Performed the experiments: YXL YNC YLM DLW LHZ MJL. Analyzed the data: YXL YNC. Wrote the paper: JHT.