Skip to main content

Table 2 Analysis between the numbers of examined pigs based on OD value

From: A persistent epidemic of porcine epidemic diarrhoea virus infection by serological survey of commercial pig farms in northern Vietnam

Location OD values
< 0.320 0.320–1.0 1.1–2.0 2.1–3.0 ≥ 3.1
Hai Duong 28 19 24 64 65
Hung Yen 22 37 28 60 53
Thai Binh 17 18 21 29 115
Total 67a 74a 73a 153ab 233b
  1. a,b, The data within the same row with the different superscripts are significantly different at P<0.05.