|
Type of operation (sample n = 220)
|
Farrowing (farm n = 30)
|
73
|
0.012
|
| |
Grower-finisher (farm n = 16)
|
25
| |
|
Other species (sample n = 212)
|
Not present (farm n = 23)
|
57
|
0.004
|
| |
Present (farm n = 23)
|
57
| |
|
Herd Size (sample n = 217)
|
Small (<1000) (farm n = 9)
|
33
|
Referent
|
| |
Medium (≥1000-3000) (farm n = 28)
|
61
|
0.272
|
| |
Large (>3000) (farm n = 9)
|
67
|
0.018
|
|
Sow Flow (sample n = 84)
|
All-in/all-out (farm n = 16)
|
75
|
0.417
|
| |
Continuous (farm n = 14)
|
71
| |
|
Weanling Flow (sample n = 15)
|
All-in/all-out (farm n = 23)
|
70
|
0.326
|
| |
Continuous (farm n = 8)
|
87.5
| |
|
Grower-Finisher Flow (sample n = 20)
|
All-in/all-out (farm n = 27)
|
48
|
0.327
|
| |
Continuous (farm n = 13)
|
54
| |
|
Antibiotic usage (sample n = 66)
|
Yes (farm n = 7)
|
100
|
0.304*
|
| |
No (farm n = 23)
|
65
| |
|
Diarrhea (sample n = 58)
|
Yes (farm n = 11)
|
82
|
0.792*
|
| |
No (farm n = 19)
|
68
| |
