Table 1 Characteristics of the five farms that participated in the study
From: Optimizing internal biosecurity on pig farms by assessing movements of farm staff
Farm A | Farm B | Farm C | Farm D | Farm E | |
|---|---|---|---|---|---|
Type of farm | Farrow-to-finish | Farrow-to-finish | Farrow-to-finish | Farrow-to-wean | Farrow-to-finish |
Batch farrowing system (…week system) | 3 | 4 | 4 | 4 | 4 |
Number of full-time employees | 1 | 1 | 2 | 5 | 3 |
Sow breed | PIC | TN70 | Hypor | Danbred | Danbred |
Number of animals | |||||
Sows | 280 | 480 | 300 | 780 | 600 |
Nursery pigs | 600 | 2000 | 1450 | 2500 | 3600 |
Fatteners | 2500 | 1200 | 480 | 0 | 1000 |
Live born piglets per litter | 13.1 | 14.6 | 14.1 | 17.5 | 16.6 |
Pre-weaning mortality (%) | 12 | 13.4 | 13.7 | 17 | 7.9 |
Number of rooms | |||||
(number of detection points) | |||||
Dressing room | 1 (1) | 1 (1) | 2 (2) | 2 (2) | 1 (1) |
Farrowing unit | 8 (3) | 10 (10) | 3 (3) | 7 (3) | 1 (2) |
Gestation/insemination unit | 2 (2) | 7 (6) | 3 (4) | 8 (8) | 6 (7) |
Nursery unit | 8 (3) | 6 (1) | 20 (4) | 12 (3) | 7 (5) |
Fattening unit | 11 (11) | 6 (3) | 6 (1) | 0 (0) | 5 (3) |
Quarantine unit | 2 (1) | 1 (1) | 1 (1) | 2 (2) | 4 (1) |
Cadaver storage | 1 (1) | 1 (1) | 1 (0) | 1 (1) | 1 (1) |
Shower in the dressing room | No | No | No | Yes | Yes |
Separate clothing and footwear for different units | No | No | No | Yes | Yes |
Measures needed to enter the quarantine unit | Boots in disinfection bath | None | Changing boots | Changing coverall and boots | Changing coverall and boots |
Location of cadaver storage | Close to the barns | Near to public road (far from the barns) | Near to public road (far from the barns) | Near to public road (far from the barns) | Near to public road (far from the barns) |
Biosecurity scores (%) | |||||
Total | 60 | 67 | 81 | 72 | 86 |
External | 66 | 76 | 87 | 77 | 83 |
Internal | 54 | 57 | 74 | 66 | 88 |