机译:影响华北地区采取农场牛奶安全措施的因素-从农场规模和生产类型的角度考察
[1]Institute of Agricultural Economics and Development,Chinese Academy of Agricultural Sciences,Beijing 100081,P.R.China;
[2]China Academy for Rural Development,Zhejiang University,Hangzhou 310058,P.R.China;
[3]International Food Policy Research Institute,Washington,DC 20005,USA;
[4]School of Agricultural Economics and Rural Development,Renmin University of China,Beijing 100872,P.R.China;
raw milk safety; farm size; production type;