Table 2 Day one clinical findings in 941 piglets from the four herds

Piglets (first parity/mature sows)

54/173

117/128

53/163

104/149

328/613

Birth weight (kg) Mean (sd)

  First parity piglets¹

1.36 (0.3)^a

1.26 (0.2)^b

1.34 (0.3)^ab

1.33 (0.2)^a

1.31 (0.2)

  Piglets born by mature sows¹

1.44 (0.3)^a

1.42 (0.3)^a

1.47 (0.3)^a

1.42 (0.3)^a

1.44 (0.3)

Clinical appearance (parities combined)

  Hollow flanks

28%

52%

30%

48%

40%

  Rough hair coat

16%

53%

48%

39%

39%

  Perineal staining²

33%

55%

29%

22%

33%

  Liquid faeces²

25%

40%

18%

19%

26%

  Protruding ribs

3%

3%

0.5%

1%

2%

  Fore-knee abrasions

2%

0.4%

0.5%

5%

2%

  Dehydration

0%

0%

0%

0%

0%

Clinical signs of failure to thrive ³

  First parity piglets

46%

89%

88%

77%

77%

  Piglets born by mature sows

51%

78%

58%

74%

64%