From: Factors associated with the occurrence of MRSA CC398 in herds of fattening pigs in Germany
Variable | Category | No purchase No. (% pos.) | Purchase from 1-2 sources No. (% pos.) | Purchase from > 2 sources No. (% pos.) | Purchase from weaner-to-grower producers No. (% pos.) | Total No. (% pos.) |
---|---|---|---|---|---|---|
Herd size | Small | 34 (21) | 40 (38) | 7 (29) | 1 (100) | 82 (31) |
 | Middle | 18 (56) | 48 (56) | 16 (69) | 4 (100) | 86 (61) |
 | Large | 19 (42) | 75 (64) | 21 (81) | 0 (0.0) | 115 (64) |
 | Total | 71 (35) | 163 (55) | 44 (68) | 5 (100) | 283 (53) |
Production type | Farrow-to-finish | 53 (30) | 8 (25) | 3 (67) | 0 (0.0) | 64 (31) |
 | Wean-to-finish | 9 (56) | 25 (64) | 3 (67) | 1 (100) | 38 (63) |
 | Grow-to-finish | 10 (50) | 132 (55) | 37 (68) | 4 (100) | 183 (59) |
 | Total | 72 (36) | 165 (55) | 43 (67) | 5 (100) | 285 (53) |
Animal flow system | Continuous | 36 (25) | 43 (47) | 9 (78) | 0 (0.0) | 88 (41) |
 | AIAOa with cleanup | 2 (0.0) | 16 (44) | 4 (75) | 0 (0.0) | 22 (46) |
 | AIAOa with cleanup and disinfection | 34 (50) | 105 (60) | 29 (62) | 5 (100) | 173 (60) |
 | Total | 72 (36) | 164 (55) | 42 (67) | 5 (100) | 283 (53) |
Use of antimicrobialsb | No | 45 (27) | 64 (52) | 15 (53) | 0 (0.0) | 124 (43) |
 | Yes | 28 (50) | 101 (57) | 29 (76) | 5 (100) | 163 (61) |
 | Total | 73 (36) | 165 (55) | 44 (68) | 5 (100) | 287 (53) |