There were 398 out of 883 unpackaged and 266 out of 712
packaged chicken carcasses found to be positive for Salmonella
contamination (P < 0.001). The median (Q1eQ3) values of those
contaminated unpackaged and packaged chicken carcasses were 5.5 (1.8e21.5) and 4.6 (1.8e11.5), respectively with significant difference
(P ¼ 0.001, ManneWhitney Test).