About the Authors

Juanjuan Fu

Affiliation Department of Grassland Science, College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi Province, P. R. China

Yongfang Sun

Affiliation Department of Grassland Science, College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi Province, P. R. China

Xitong Chu

Affiliation Department of Grassland Science, College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi Province, P. R. China

Yuefei Xu

xuyfgrass@gmail.com (YX); hutianming@126.com (TH)

Affiliation Department of Grassland Science, College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi Province, P. R. China

Tianming Hu

xuyfgrass@gmail.com (YX); hutianming@126.com (TH)

Affiliation Department of Grassland Science, College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi Province, P. R. China

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: YFX TMH. Performed the experiments: JJF YFS XTC. Analyzed the data: JJF. Contributed reagents/materials/analysis tools: YFX TMH. Contributed to the writing of the manuscript: JJF.