Table 3.
Salmonella spp. identification from environmental swabs of commercial hen housing systems.
| Salmonella Braenderup | Salmonella Kentucky | Total | |
|---|---|---|---|
| Sample type | no. isolates (% total) | no. isolates (% total) | no. isolates (% total) |
| Aviary overall1 (n = 176) | 26 (23.21%) | 22 (19.64%) | 48 (42.86%) |
| Aviary drag swabs2,3 | 2 (1.79%) | 9 (8.04%) | 11 (9.82%) |
| Aviary nest box | 14 (12.50%) | 8 (7.14%) | 22 (19.64%) |
| Aviary system wire | 10 (8.93%) | 5 (4.46%) | 15 (13.39%) |
| Conventional overall (n = 80) | 19 (16.96%) | 1 (0.89%) | 20 (17.86%) |
| Conventional system wire | 19 (16.96%) | 1 (0.89%) | 20 (17.86%) |
| Enriched overall (n = 240) | 40 (35.71%) | 4 (3.57%) | 44 (39.29%) |
| Enriched nest box | 13 (11.61%) | ND4 | 13 (11.61%) |
| Enriched scratch pad | 14 (12.50%) | 4 (3.57%) | 18 (16.07%) |
| Enriched system wire | 13 (11.61%) | ND | 13 (11.61%) |
| Column total | 85 (75.89%) | 27 (24.11%) |
1Comparison of total Salmonella spp. identified within each of the housing systems (P < 0.0001).
2Percentage of total Salmonella spp. identified from each of the environmental sample types (P < 0.0001).
3Environmental swabs: n = 80 with exception of aviary drag swabs: n = 16.
4ND = none detected.