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Table 1 Differences between management routines (W1–W3) with regard to litter size, lactation length, weight, and back fat at farrowing and weaning (Lsmeans ± S.E), and parity (number of sows)

From: Sow performance in multi-suckling pens with different management routines

  W1 W2 W3 P
Litter size
 Live born 12.5 ± 0.7 13.3 ± 0.8 11.8 ± 0.7 n.s.
 At grouping 10.4 ± 0.6 10.4 ± 0.7 9.8 ± 0.6 n.s.
 At weaning 9.0 ± 0.6 9.6 ± 0.6 9.6 ± 0.5 n.s.
Lactation period (days) 44.2 ± 0.6 43.6 ± 0.6 43.7 ± 0.6 n.s.
Sow weight (kg)
 At farrowing 257.7 ± 7.8 266.7 ± 8.2 256.1 ± 7.6 n.s.
 At weaning 246.8 ± 7.3ab 263.6 ± 7.6a 233.5 ± 7.1b < 0.05
Difference − 11.2 ± 5.7ab − 1.0 ± 6.1a − 22.4 ± 5.5b < 0.05
Back fat (mm)
 At farrowing 17.5 ± 1.2 17.4 ± 1.3 19.0 ± 1.2 n.s.
 At weaning 14.0 ± 1.0 16.8 ± 1.1 15.2 ± 1.0 n.s.
Difference − 3.6 ± 0.8a − 0.5 ± 0.9b − 3.8 ± 0.8a < 0.05
1st parity 3 2 6 n.s.
2nd parity 6 4 4 n.s.
> 2nd parity 5 7 6 n.s.
  1. Different superscripts within rows indicate significant differences
  2. n.s. non-significant (P > 0.5)
  3. W1 = The sows and their litters were moved from individual to multi-suckling pen at 1 week post farrowing, W2 = The sows and their litters were moved from individual to multi-suckling pen at 2 weeks post farrowing, W3 = The sows and their litters were moved from individual to multi-suckling pen at 3 weeks post farrowing