Group and type of antibiotic | Spiked Concentration (μg/L) | Average Rec% ± STDEV M1 | Average Rec% ± STDEV M2 | Average Rec% ± STDEV M3 | Average Rec% ± STDEV M4 | MRL in milk (μg/L) | MRL in meat (μg/L) | MRL milk/MRL meat |
---|---|---|---|---|---|---|---|---|
Macrolides |  | 35.65 ± 2.72 | 24.50 ± 8.54 | 73.66 ± 8.33 | 79.20 ± 6.51 |  |  |  |
Erythromycin | 2000 | 3.40ab ± 0.98 | 0.67a ± 0.35 | 20.10b ± 3.77 | 0.00a ± 0.00 | 40 | 200 | 0.2 |
Neospyramycin | 2500 | 18.78 ± 1.33 | 22.14 ± 1.10 | 70.31 ± 11.95 | 102.99 ± 3.17 | 200 | 200 | 1 |
Spiramycin | 2500 | 25.96 ± 3.06 | 29.07 ± 1.18 | 53.17 ± 4.80 | 37.45 ± 2.02 | 200 | 200 | 1 |
Tilmicosin | 500 | 96.42 ± 2.34 | 63.54 ± 39.90 | 171.49 ± 11.93 | 245.02 ± 27.02 | 50 | 50 | 1 |
Tylosin | 1000 | 33.69a ± 5.89 | 7.08b ± 0.16 | 53.23a ± 9.22 | 10.55b ± 0.35 | 50 | 100 | 0.50 |
Penicillins |  | 34.36 ± 2.10 | 30.36 ± 1.87 | 72.33 ± 9.17 | 75.42 ± 7.91 |  |  |  |
Amoxicillin | 500 | 57.08a ± 4.54 | 69.32a ± 0.38 | 143.26b ± 25.38 | 107.28c ± 35.83 | 4 | 50 | 0.08 |
Ampicillin | 500 | 78.19a ± 7.09 | 104.03a ± 7.99 | 204.73b ± 26.17 | 273.58c ± 7.65 | 4 | 50 | 0.08 |
Cloxacillin | 30,000 | 1.43a ± 0.12 | 1.31a ± 0.03 | 3.05a ± 0.21 | 5.76a ± 0.49 | 30 | 300 | 0.1 |
Dicloxacillin | 3000 | 9.13a ± 0.44 | 6.96a ± 0.09 | 21.14ab ± 2.80 | 60.03b ± 5.54 | 30 | 300 | 0.1 |
Nafcillin | 3000 | 8.23a ± 0.20 | 10.69a ± 0.12 | 18.07a ± 0.39 | 10.23a ± 0.31 | 30 | 300 | 0.1 |
Oxacillin | 3000 | 10.99a ± 0.86 | 11.72a ± 0.27 | 28.44ab ± 1.39 | 53.30b ± 2.03 | 30 | 300 | 0.1 |
Penicillin G | 500 | 75.48a ± 1.44 | 8.46b ± 4.25 | 87.64a ± 7.85 | 17.76b ± 3.53 | 4 | 50 | 0.08 |
Quinolones |  | 37.05 ± 2.20 | 26.58 ± 1.62 | 76.52 ± 1.74 | 83.07 ± 13.94 |  |  |  |
Enrofloxacin | 500 | 53.28 ± 3.60 | 40.40 ± 1.90 | 110.21 ± 1.22 | 95.99 ± 19.05 | 100 | 100 | 1 |
Flumequine | 1000 | 9.05a ± 1.45 | 0.00b ± 0.00 | 24.33a ± 0.70 | 52.72c ± 9.48 | 50 | 200 | 0.25 |
Marbofloxacin | 750 | 48.80a ± 1.55 | 39.32a ± 2.94 | 95.02b ± 3.29 | 100.49b ± 13.30 | 75 | 150 | 0.5 |
Sulfonamides |  | 34.80 ± 1.32 | 29.49 ± 2.52 | 94.58 ± 6.43 | 99.73 ± 9.82 |  |  |  |
Sulfacetamide | 1000 | 18.54 ± 1.36 | 14.02 ± 1.57 | 35.42 ± 8.03 | 20.53 ± 2.80 | 100 | 100 | 1 |
Sulfachloropyridazine | 1000 | 38.38 ± 0.48 | 26.78 ± 3.87 | 108.43 ± 0.11 | 132.90 ± 3.87 | 100 | 100 | 1 |
Sulfadiazine | 1000 | 25.49 ± 2.58 | 24.09 ± 0.89 | 58.88 ± 0.63 | 65.94 ± 3.54 | 100 | 100 | 1 |
Sulfadimethoxine | 1000 | 14.31 ± 1.46 | 7.10 ± 0.40 | 41.56 ± 1.33 | 85.52 ± 2.47 | 100 | 100 | 1 |
Sulfadimidine | 1000 | 39.33 ± 0.21 | 38.29 ± 1.55 | 114.46 ± 7.31 | 123.00 ± 9.00 | 100 | 100 | 1 |
Sulfadoxine | 1000 | 30.31 ± 0.74 | 16.97 ± 2.60 | 82.33 ± 0.96 | 153.84 ± 1.11 | 100 | 100 | 1 |
Sulfaguanidine | 1000 | 18.64 ± 0.12 | 14.25 ± 0.14 | 39.51 ± 7.71 | 26.60 ± 10.07 | 100 | 100 | 1 |
Sulfamerazine | 1000 | 9.70 ± 1.57 | 7.65 ± 0.11 | 39.23 ± 1.08 | 89.31 ± 11.19 | 100 | 100 | 1 |
Sulfamethizole | 1000 | 42.44 ± 0.80 | 55.31 ± 7.74 | 92.82 ± 1.55 | 84.97 ± 4.78 | 100 | 100 | 1 |
Sulfamethoxazole | 1000 | 43.95 ± 6.02 | 18.70 ± 3.82 | 127.40 ± 4.92 | 161.97 ± 15.02 | 100 | 100 | 1 |
Sulfamethoxypyridazine | 1000 | 43.94 ± 0.02 | 51.72 ± 1.76 | 140.44 ± 5.21 | 165.70 ± 12.54 | 100 | 100 | 1 |
Sulfamonomethoxine | 1000 | 42.22 ± 1.56 | 50.56 ± 0.46 | 148.67 ± 9.67 | 174.34 ± 7.26 | 100 | 100 | 1 |
Sulfamoxole | 1000 | 38.61 ± 1.46 | 19.51 ± 2.34 | 80.30 ± 10.71 | 100.31 ± 23.38 | 100 | 100 | 1 |
Sulfapyridine | 1000 | 29.02 ± 0.68 | 31.62 ± 2.64 | 89.32 ± 6.45 | 101.35 ± 18.40 | 100 | 100 | 1 |
Sulfaquinoxaline | 1000 | 13.64 ± 0.32 | 10.28 ± 2.07 | 28.72 ± 5.89 | 79.34 ± 14.84 | 100 | 100 | 1 |
Sulfathiazole | 1000 | 36.39 ± 1.95 | 39.05 ± 0.88 | 88.64 ± 5.73 | 41.14 ± 21.28 | 100 | 100 | 1 |
Sulfisoxazole | 1000 | 55.57 ± 0.80 | 29.05 ± 2.59 | 168.29 ± 12.57 | 62.20 ± 4.43 | 100 | 100 | 1 |
Trimethoprim | 1000 | 86.00 ± 1.57 | 75.98 ± 9.94 | 217.95 ± 25.88 | 126.27 ± 10.81 | 50 | 50 | 1 |
Tetracyclines |  | 25.73 ± 0.54 | 21.89 ± 17.13 | 73.50 ± 12.79 | 52.61 ± 7.69 |  |  |  |
Chlortetracycline | 1000 | 18.87 ± 0.49 | 21.77 ± 9.36 | 30.30 ± 6.29 | 35.67 ± 6.17 | 100 | 100 | 1 |
Oxytetracycline+ 4-Epi-Oxytetracycline | 1000 | 32.79 ± 0.77 | 22.24 ± 23.07 | 108.49 ± 15.90 | 48.16 ± 2.89 | 100 | 100 | 1 |
Tetracycline+ 4-Epi-Tetracycline | 1000 | 25.53 ± 0.36 | 21.67 ± 18.97 | 81.72 ± 16.19 | 74.02 ± 14.00 | 100 | 100 | 1 |