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Table 9 Comparisons of culling risks (%) between pigs born alive groups and stillborn piglets groups for farrowed sows in parities 1 and 5–6

From: Culling in served females and farrowed sows at consecutive parities in Spanish pig herds

 

stillborn piglets groups

 

0

1–2

3 or more

Pigs born alive groups

Culling risks (± SE), %

 

Parity 1

8 or fewer

5.7 (0.37)ay

5.9 (0.43)ay

10.5 (0.74)ax

9–15

3.7 (0.20)by

4.0 (0.23)by

5.2 (0.39)bx

16 or more

3.7 (0.34)b

4.3 (0.46)ab

5.0 (1.20)b

 

Parity 5

8 or fewer

21.6 (1.48)ay

20.7 (1.54)ay

27.3 (1.93)ax

9–15

6.8 (0.44)bz

7.8 (0.50)by

11.9 (0.81)bx

16 or more

5.3 (0.48)cy

6.1 (0.55)cxy

8.4 (1.12)bx

 

Parity 6

8 or fewer

30.5 (2.42)a

30.4 (2.43)a

32.4 (2.56)a

9–15

14.4 (1.13)bz

15.8 (1.24)by

18.6 (1.48)bx

16 or more

10.7 (0.99)c

11.3 (1.05)c

12.2 (1.51)c

  1. a-cMean values within a column followed by different letters differ (P < 0.05)
  2. x-zMean values within a row followed by different letters differ (P < 0.05)