Presence of ESBL/AmpC-producing isolates in broiler feed at three commercial broiler farms measured in four poultry houses at arrival at the farm till week five between September 2010 and February 2011.
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†‘−’ means absence of ESBL/AmpC-producing E. coli in the feed sample taken in the particular poultry house in the indicated week; ‘+’ means presence of ESBL/AmpC-producing E. coli in the feed sample taken at the particular poultry house in the indicated week.
创建时间：
2015-12-02
