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Table 1 Characteristics of the farms samples studied in 2010 and 2013, and comparison to the national data

From: Reliable estimation of antimicrobial use and its evolution between 2010 and 2013 in French swine farms

  2010 2013
national reference farm sample national reference farm sample
Farms located in Brittanya 51% 46% 49% 45%
Member of a production organisationa 83% 84% 85% 89%
Production orientation Farrowing or farrow-to-weaning 7% 6% 5% 5%
Farrow-to-finish 46% 47% 45% 45%
Post-weaners, post-weaners to finish or finishers 47% 47% 50% 50%
Number of sows 5 to 49 Not available 9% 9%
50 to 99 10% 10%
100 to 199 42% 42%
200 and more 39% 39%
  1. aNational reference data from the national database BDPORC, extracted for years 2010 and 2013. Other national reference data are from the department of statistics of the French Ministry of Agriculture. There was no statistical significant difference, within each year, between the sample’s criteria and those of the national reference (Chi-2 test)