Sample source Sample type Total sample collected Salmonella status χ2 (P-value)
Negative Positive (%)
Abattoir Carcass swab 28 27 1(3.6%) 1.29 (0.256)
Hanging material swab 7 6 1 (14.3%)
Knife swab 6 5 1(16.7%)
Hand swab 7 5 2(28.6%)
lymph node 23 20 3(13.0%)
Faeces 23 23 0(0.0%)
  Subtotal 94 86 8(9.3%)
Dairy farm Milk 36 36 0(0.0%)
Tank milk 7 6 1(14.3%)
Faeces from farm 27 26 1(3.7%)
Bucket swab 7 6 1 (14.3%)
Hand swab 7 7 0(0.0%)
Tank swab 7 6 1(14.3%)
Subtotal 91 87 4 (4.6%)
Total 185 173(93.5%) 12(6.5%)
Table 1: Proportion of Salmonella isolated from different samples of dairy farms, abattoir and individuals working in the dairy farms and abattoir.