Table 2 Prevalence of litters with lameness diagnosed in piglets by sow parity. Total prevalence, mean number and range of lame pigs in the affected litters, as well as the percentages of litters with one, two, three or more than three affected piglets

1

146

46

31.5 ^A

1.52

1-9

76 %^A

15 %^A

4 %^A

4 %^A

2

103

39

37.9 ^AB

1.51

1-6

74 %^AB

18 %^A

5 %^A

5 %^A

3

97

40

41.2 ^AB

1.74

1-6

55 %^BC

28 %^A

8 %^A

8 %^AB

4

62

33

53.2 ^B

2.15

1-6

48 %^C

51 %^B

15 %^AB

15 %^AB

>4

73

52

71.2 ^C

2.18

1-7

54%^C

29%^A

27%^B

19%^B