1. College of Water Resource and Civil Engineering, China Agriculture University, Beijing, People’s Republic of China
2. Key Laboratory of Agricultural Engineering in Structure and Environment, Ministry of Agriculture, Beijing, People’s Republic of China
3. Beijing Engineering Research Center on Animal Healthy Environment, Beijing, People’s Republic of China
4. School of Environment and Natural Resources, Renmin University of China, Beijing, People’s Republic of China
5. Agricultural Engineering Sciences, University of Illinois at Urbana-Champaign, Urbana, IL, USA