1. Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences/Key Laboratory of Agra-products Quality & Safety in Harvest, Storage, Transportation, Management and Control, Ministry of Agriculture and Rural Affairs, Beijing 100193, P. R. China
2. Precision Livestock and Nutrition Unit, Gembloux Agra-Bio Tech, University of LièGe, Passage des Déport́s 2, Gembloux 5030, Belgium