At the invitation of the National key Laboratory of Pastoral Agricultural ecosystem and the School of Pastoral Agricultural Science and Technology of Lanzhou University, Professor Tianhai Yan, Director of the British Institute of Agri-Food and Biosciences Institute Ruminant Nutrition Research Office and Dr. Lifeng Dong Feed Research Institute of the Chinese Academy of Agricultural Sciences, visited the School of Pastoral Agricultural Science and Technology of Lanzhou University from December 3rd to 9th, 2019 and made an academic report onThe development of greenhouse gas calculator for dairy cowsandResearch Progress of methane Emission and Emission reductionfrom the 101st issue of Grass Industry Everest Forum.Professor Saman Bowatte presided over the meeting, and more than 100 teachers and students listened to the report.

During this period, Professor Tianhai Yan and Professor Fujiang Hou discussed the next step of cooperation.