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Table 5 Serum AAs and NH3 [mg/dL] in piglets within 48 h p.n. depending on farrowing system and weight class (mean ± SD)

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

  FC LH GH
Light n 8 10 12
BW [kg] 1.10B ± 0.04 1.16B ± 0.10 1.16B ± 0.11
Serum AAs [mg/dL]
Arginine 2.10ab ± 0.90 2.65a ± 1.27 1.57b ± 0.39
Leucine 2.85a ± 0.76 2.72ab ± 0.89 2.01b ± 0.70
Lysine 4.92 ± 2.47 4.01 ± 1.26 3.43 ± 1.34
Methionine 0.80 ± 0.22 0.72 ± 0.67 0.59 ± 0.30
Proline 10.5ab ± 3.67 12.1a ± 2.92 8.42b ± 3.45
Threonine 2.30 ± 0.99 2.77 ± 1.0 1.83 ± 1.09
Tryptophan* 0.60 ± 0.09 0.59 ± 0.24 0.67 ± 0.20
Valine 4.35 ± 0.98 4.66 ± 1.96 3.74 ± 1.40
NH3 6.68 ± 0.99 6.91 ± 1.42 7.45 ± 1.52
Heavy n 16 14 12
BW [kg] 1.78A ± 0.24 1.77A ± 0.24 1.96A ± 0.32
Serum AAs [mg/dL]
Arginine 2.93 ± 1.60 2.45 ± 0.98 1.92 ± 0.42
Leucine 3.21a ± 1.19 2.84ab ± 1.19 2.19b ± 0.50
Lysine 5.32 ± 2.76 4.07 ± 2.55 3.55 ± 1.12
Methionine 1.03 ± 0.92 0.94 ± 0.93 0.80 ± 0.31
Proline 10.0ab ± 4.06 11.5a ± 4.22 7.37b ± 2.69
Threonine 3.00ab ± 1.20 2.92a ± 0.77 2.15b ± 0.72
Tryptophan** 0.66 ± 0.23 0.68 ± 0.39 0.49 ± 0.14
Valine 5.47 ± 2.08 5.03 ± 2.10 4.01 ± 0.61
NH3 6.58 ± 1.53 7.33 ± 1.24 7.26 ± 1.31
  1. FC Farrowing crate, LH Loose housing, GH Group housing, BW Body weight [kg]; light < 1.4 kg. heavy ≥1.4 kg
  2. a,bValues within a row with different superscripts differ significantly at p < 0.05; A,BValues within a column with different superscripts differ significantly at p < 0.05
  3. *FC: n = 3; LH: n = 3; GH: n = 3; ** FC: n = 5; LH: n = 5; GH: n = 4 (only measurable with these piglets)