Table 1.
Prevalence of Salmonella-positive LNs samples1 by hog type and region
| Region | ||
|---|---|---|
| Northern | Southern | |
| Hog type | ||
| Market hog | 6.4 (13/202) a, x | 13.0 (13/100) a, x |
| Sow | 37.0 (37/100) b, x | 4.8 (5/105) b, y |
a,b: Values within a column lacking a common letter differ (P < 0.05).
x,y: Values within a row lacking a common letter differ (P < 0.05).
1A total of 21 (n = 8 northern market hog, n = 4 northern sow, n = 4 southern market hog, and n = 5 southern sow) commercial harvest and processing facilities participated in the study; the remaining 12 facilities either declined or were no longer in operation. At each commercial facility, market hogs or sows were harvested and left and right superficial inguinal LNs (n = 1,014 LNs) were removed. Within animal, left and right LNs of each type were pooled (n = 507 total samples).