Table 2 Prevalence of Listeria monocytogenes in the slaughterhouse
| Slaughterhouse | Sample | Total (%) |
| Feces | Carcass (%) | Environment |
| Central 1 | 0/18 | 5/18(27.78) | 0/1 | 5/37(13.51) |
| Central 2 | 0/18 | 1/18(5.56) | 0/2 | 1/38(2.63) |
| Central 3 | 0/18 | 2/18(11.11) | 0/2 | 2/38(5.26) |
| Central 4 | 0/3 | 0/6 | 0 | 0/9 |
| South west 1 | 0/18 | 4/18(22.22) | 0/2 | 4/38(10.53) |
| South west 2 | 0/18 | 1/19(5.26) | 0/2 | 1/39(2.56) |
| South east 1 | 0/15 | 2/15(13.33) | 0/2 | 2/32(6.25) |
| South east 2 | 0/19 | 0/19 | 0/2 | 0/40 |
| South east 3 | 0/9 | 0/9 | 0/1 | 0/19 |
| Total | 0/136 | 15/140(10.71) | 0/14 | 15/290(5.17) |