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Table 5 Comparison of the results for different milk types obtained by Delvotest and LC-MS/MS

From: Assessment of antibiotic residues in commercial and farm milk collected in the region of Guelma (Algeria)

  Delvotest negative Delvotest positive %Delvotest positive LC-MS/MS conform LC-MS/MS non-conform % LC-MS/MS positive
Bulk tank milk 26 3 10.3a 16 19 54a
Individual untreated cow’s milk 57 15 20.8a 41 58 59a
Individual treated cow’s milk 10 16 61.5b 7 15 68a
Market raw cow’s milk 10 2 16.7ab 0 18 100a
Market fermented cow’s milk 12 3 20ab 3 17 85a
  1. Groups with the same letter behind the percentage of % Delvotest positive are not significantly different from each other at level of 0.05
  2. Groups with the same letter behind the percentage of % LC-MS/MS positive are not significantly different from each other at level of 0.05