System I (Straw bed) | System II (pen) | ||
---|---|---|---|
(n = 120) | (n = 138) | ||
During the gestation period | |||
Sows treated with antibiotics | 1 (0.8%) | 4 (2.9%) | |
Sows treated with NSAIDS | 2 (1.7%) | 0 | |
Total number of sows treated | 3 (2.5%) | 4 (2.9%) | |
During the nursing period | Significance | ||
Sows treated with antibiotics | 1 (0.8%) | 29 (21.0%) | p < 0.001 |
Sows treated with NSAIDS | 4 (3.3%) | 23 (16.7%) | p < 0.001 |
Total number of sows treated | 5 (4.2%) | 52 (37.7%) | p < 0.001 |