1. Animal Nutrition Institute, Sichuan Agricultural University, Ya’an, Sichuan, China
2. Ecology and Agriculture Division, Northwest Institute of Eco-Enviroment and Resources, Chinese Academy of Sciences, Lanzhou, Gansu, China
3. Desert Animal Adaptations and Husbandry, Wyler Department of Dryland Agriculture, Blaustein Institutes for Desert Research, Ben-Gurion University of Negev, Beer Sheva, Israel