A Market Survey of Traceable Food in Supermarkets of Rizhao of Shandong Province

XIA Zhi-yun, LIANG Fang,DING Zhen （Rizhao Polytechnic,Rizhao 276800,China）

Animal Husbandry and Feed Science . 2018, (10): 69 -74 . DOI: 10.12160/j.issn.1672-5190.2018.10.017