Skip to main content
. 2010 Apr;74(2):81–90.

Table I.

Distribution of the categorical variables in each production phase that were considered as possible risk factors for the occurrence of Salmonella in 10 farrow-to-finish pig farms from Alberta and Saskatchewan

Distribution
Variable Levels of response Sows (%) Nursery (%) Grow-finish
Sex gilt(s) na 34 38
barrow(s) na 34 37
mixed pen na 32 24
sow(s) 100 na na
Fecal score runny 0 0 3
normal 93 99 96
hard/dry 7 1 1
Fed pelleted feed yes 30 51 29
no 70 49 71
Fed wet feed yes 44 78 83
no 56 22 17
Fed on floor yes 20 0 8
no 80 100 92
Pen cleanliness clean 56 76 25
slightly wet/dirty 24 23 49
moderately wet/dirty 16 0 9
very wet/dirty 4 0 16
Pen floor type full slatted 25 94 16
part slatted 66 6 80
not slatted 9 0 4
Concrete floor yes 79 4 91
no 21 96 9
Concrete walls yes 9 4 54
no 91 96 46
Nose-to-nose contact between pens yes 79 53 80
no 21 47 20
Production phase sows 100 0 0
nursery/weaners 0 100 0
grow-finishers 0 0 100