Using ManneWhitney Test, the median load value (MPN/100 g) of
carcasses collected in summer, 8.0 MPN/100 g, was all significantly
higher than those collected in spring (4.6 MPN/100 g, P < 0.001),
autumn (4.6 MPN/100 g, P ¼ 0.005) and winter (3.6 MPN/100 g,
P < 0.001), respectively.