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Table 1 Reproductive performance of the sows of the sampled piglets, depending on farrowing system (mean ± SD)

From: Immunocrit, serum amino acid concentrations and growth performance in light and heavy piglets depending on sow’s farrowing system

  All sows All Sows with piglets sampled for IC All sows with piglets sampled for AA
FC [n = 51] LH [n = 47] GH [n = 51] FC [n = 26] LH [n = 24] GH [n = 25] FC [n = 6] LH [n = 6] GH [n = 6]
Parity number 2.84 ± 2.04 3.43 ± 2.68 2.49 ± 1.86 2.62 ± 1.63 3.13 ± 2.35 2.32 ± 1.25 2.17 ± 0.75 1.67 ± 1.00 2.00 ± 0.89
Total number of born piglets [n] 16.3 ± 4.58 15.6 ± 4.44 16.6 ± 4.12 15.9 ± 5.06 15.7 ± 4.72 17.5 ± 4.21 16.5 ± 4.23 17.0 ± 2.10 17.0 ± 3.69
Piglets born alive [n] 14.8 ± 4.40 14.2 ± 4.18 15.8 ± 3.90 14.7 ± 4.51 14.5 ± 4.55 16.7 ± 4.07 16.2 ± 3.92 16.2 ± 2.14 16.3 ± 2.94
Stillborn piglets [n] 1.49 ± 2.60 1.45 ± 1.65 0.882 ± 0.993 1.23 ± 1.50 1.17 ± 1.58 0.760 ± 0.926 0.33 ± 0.52 0.83 ± 0.98 0.67 ± 0.82
Piglets after litter equalization [n] 14.6 ± 2.33 14.2 ± 3.27 15.6 ± 3.21 14.6 ± 2.59 14.5 ± 3.73 16.5 ± 3.61 14.3 ± 2.25 15.3 ± 1.03 15.3 ± 1.86
Weaned piglets [n] 12.5a ± 1.86 10.3b ± 2.77 12.0a ± 1.95 12.8a ± 1.91 10.6b ± 2.89 12.6 ± 1.87 12.8 ± 1.94 11.3 ± 2.58 13.3 ± 1.03
Total piglet mortality* [%] 13.2b ± 11.0 24.4a ± 20.1 20.9a ± 14.2 11.1b ± 7.85 23.9a ± 20.2 20.9a ± 15.1 10.2 ± 6.40 26.4 ± 15.5 12.1 ± 11.5
  1. FC farrowing crate, LH Loose housing, GH Group housing
  2. a,b Values within a row with different superscripts differ significantly at p < 0.05
  3. * Piglet mortality detected the period from birth to weaning. Piglets moved away due to the litter equalization are not recorded as losses. All piglets of a litter that died during the total suckling period (apart from the piglets that were transferred), describe the piglet mortality