Skip to main content
. 2021 Feb 7;99(2):skab040. doi: 10.1093/jas/skab040

Table 5.

Impact of feed level during the last week of gestation on blood biochemical variables of the piglets at birth (n = 8 sows/feed level)

Feed level (FL), kg/d Parity (P) P-value
Item 1.8 2.4 3.1 3.7 4.3 5.0 SEM Gilt Sow SEM Trt P FL × P Linear Quadratic Cubic
Glucose, mmol/L 2.20 2.56 2.55 2.80 2.94 2.48 0.23 2.65 2.53 0.11 0.15 0.59 0.79 0.10 0.08 0.38
Lactate, mmol/L 5.12 5.76 5.72 5.84 5.24 4.64 0.52 5.72 5.05 0.26 0.29 0.09 0.83 0.37 0.05 0.97
pH 7.36 7.34 7.32 7.33 7.35 7.34 0.02 7.35 7.33 0.01 0.34 0.10 0.50 0.66 0.13 0.40
O2, mmol/L 3.50 4.66 4.29 4.19 4.28 3.89 0.28 4.53a 3.74b 0.12 0.09 <0.001 0.28 0.62 0.008 0.11
CO2, mmol/L 29.7 28.1 28.6 29.3 28.9 30.5 1.26 28.8 29.6 0.59 0.60 0.19 0.64 0.48 0.19 0.77
Ca2+, mmol/L 1.42 1.43 1.42 1.44 1.43 1.43 0.02 1.40b 1.45a 0.01 0.93 <0.001 0.12 0.53 0.73 0.66
Na+, mmol/L 137 138 137 138 136 139 0.89 138 137 0.46 0.17 0.09 0.05 0.57 0.82 0.13
K+, mmol/L 4.43 4.54 4.38 4.27 4.58 3.85 0.18 4.25 4.43 0.09 0.06 0.06 0.28 0.05 0.12 0.22
Ca2+(7.4), mmol/L1 1.38 1.39 1.37 1.39 1.41 1.40 0.02 1.37b 1.41a 0.01 0.16 <0.001 0.42 0.10 0.69 0.65
Anion gap, mmol/L 13.1ab 14.1a 13.0ab 11.7b 12.5b 12.8ab 0.78 13.3a 12.4b 0.36 0.03 0.03 0.14 0.15 0.57 0.05
Hemoglobin, mmol/L 6.78 7.19 7.26 6.91 6.87 6.73 0.21 7.18 6.91 0.11 0.12 0.08 0.41 0.53 0.67 0.02
Oxyhemoglobin, % 50.9 62.5 59.8 59.7 62.1 51.9 3.42 62.2a 53.5b 1.71 0.06 <0.001 0.20 0.81 0.002 0.88
Deoxyhemoglobin, % 41.3 35.6 39.3 38.3 36.8 45.8 3.49 36.2b 42.9a 2.01 0.22 0.005 0.87 0.46 0.11 0.64
Oxygen saturation, % 53.1 61.5 59.4 60.9 60.2 52.5 3.79 63.0a 52.8b 1.70 0.11 <0.001 0.22 0.90 0.007 0.92
Hematocrit, % 32.3 34.8 34.3 32.8 32.6 34.9 1.03 34.3a 32.3b 0.53 0.08 0.05 0.19 0.56 0.86 0.004

1Measured at pH of 7.4.

a,bMeans within a row with different superscript differ (P < 0.05).