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 |