Table 4. Descriptive statistics of the number of Defined Daily Doses (DDDvet) per cow and year for antimicrobial products used to treat acute mastitis on 232 Austrian dairy farms, based on European Medicines Agency technical units.
| Treatment | ATCVet Code | Antimicrobial class | No. herds treating cows | % (N = 232) | nDDDvet/cow/year | ||||
|---|---|---|---|---|---|---|---|---|---|
| Mean | SEM | Median | Minimum | Maximum | |||||
| INTRAMAMMARY | |||||||||
| Amoxicillin (& clavulanic acid) | QJ51CR02 | Aminopenicillin | 2 | 0.9 | 0.18 | 0.05 | 0.18 | 0.11 | 0.26 |
| Ampicillin & cloxacillin | QJ51CR50 | Aminopenicillin | 63 | 27.2 | 0.44 | 0.05 | 0.30 | 0.01 | 2.56 |
| Penicillin | QJ51CE09 | Penicillin | 83 | 35.8 | 0.63 | 0.08 | 0.41 | 0.08 | 4.19 |
| Cefalexin | QJ51DB01 | Ceph. (1st gen.) | 4 | 1.7 | 0.35 | 0.11 | 0.35 | 0.09 | 0.59 |
| Cefalexin & kanamycin | QJ51RD01 | Ceph. (1st gen.)/aminoglycoside | 28 | 12.1 | 0.60 | 0.10 | 0.51 | 0.07 | 2.61 |
| Cefazolin | QJ51DB04 | Ceph. (1st gen.) | 3 | 1.3 | 0.25 | 0.13 | 0.13 | 0.06 | 0.56 |
| Cefoperazone | QJ51DD12 | Ceph. (3rd gen.) | 89 | 38.4 | 0.60 | 0.07 | 0.35 | 0.03 | 2.96 |
| Cefquinome | QJ51DE90 | Ceph. (4th gen.) | 80 | 34.5 | 0.54 | 0.10 | 0.29 | 0.04 | 6.65 |
| Lincomycin & neomycin | QJ51RF03 | Lincosamide & aminoglycoside | 2 | 0.9 | 0.24 | 0.06 | 0.24 | 0.16 | 0.32 |
| Sulfadiazine & trimethoprim | QJ51RE01 | Sulphonamide & trimethoprim | 7 | 3.0 | 0.02 | 0.00 | 0.01 | 0.01 | 0.03 |
| SYSTEMIC | |||||||||
| Amoxicillin | QJ01CA04 | Aminopenicillin | 24 | 10.3 | 0.10 | 0.01 | 0.10 | 0.02 | 0.23 |
| Ampicillin | QJ01CA01 | Aminopenicillin | 9 | 3.9 | 0.09 | 0.01 | 0.07 | 0.04 | 0.14 |
| Penicillin | QJ01CE | Penicillin | 99 | 42.7 | 0.16 | 0.02 | 0.11 | 0.01 | 1.01 |
| Benzylpenicillin & streptomycin | QJ01RA01 | Penicillin & aminoglycoside | 13 | 5.6 | 0.16 | 0.03 | 0.13 | 0.02 | 0.45 |
| Cefquinome | QJ01DE90 | Ceph. (4th gen.) | 62 | 26.7 | 0.15 | 0.02 | 0.09 | 0.01 | 1.11 |
| Ceftiofur | QJ01DD90 | Ceph. (3rd gen.) | 23 | 9.9 | 0.08 | 0.01 | 0.05 | 0.01 | 0.30 |
| Enrofloxacin | QJ01MA90 | Fluoroquinolone | 20 | 8.6 | 0.12 | 0.02 | 0.07 | 0.03 | 0.46 |
| Kanamycin | QJ01GB04 | Aminoglycoside | 15 | 6.5 | 0.03 | 0.00 | 0.03 | 0.01 | 0.07 |
| Marbofloxacin | QJ01MA93 | Fluoroquinolone | 57 | 24.6 | 0.13 | 0.02 | 0.08 | 0.02 | 0.82 |
| Oxytetracycline | QJ01AA06 | Tetracycline | 4 | 1.7 | 0.04 | 0.01 | 0.05 | 0.02 | 0.07 |
| Sulfadimidine & trimethoprim | QJ01EW03 | Sulphonamide & trimethoprim | 14 | 6.0 | 0.16 | 0.02 | 0.14 | 0.04 | 0.34 |
| Tylosin | QJ01FA90 | Macrolide | 53 | 22.8 | 0.13 | 0.02 | 0.09 | 0.01 | 0.59 |
Notes.
- nDDDvet/cow/year
- number of defined daily doses per cow and year
- SEM
- standard error of the mean
- ceph.
- cephalosporin