Skip to main content
. 2018 Oct 12;97(1):231–245. doi: 10.1093/jas/sky395

Table 4.

Arterial concentrations, mammary plasma flow (MPF) and net mammary fluxes (uptake or release) of blood gases and plasma metabolites during the initial 24 h after the onset of farrowing in sows fed a control diet (CON) or dietary fiber-supplemented treatment diet (FIB) during last 2 wk of gestation

Item Treatment (Trt) Hours relative to the onset of farrowing (H)1 P-value
CON FIB SEM 1 2 3 4 5 6 7 8 12 18 24 SEM Trt H
Arterial concentrations of blood gases and plasma metabolites
 O2, mM 6.10 6.1 0.16 6.2 6.2 6.3 6.2 6.2 6.1 6.0 6.0 6.0 6.0 5.7 0.16 0.76 0.11
 CO2, mM 30.5 30.5 0.31 30.5b 30.9ab 30.3b 29.7b 29.8 30.1b 30.4b 30.4b 30.6b 31.8a 31.2a 0.45 0.98 0.02
 Glucose, mM 4.5 4.2 0.62 4.4 4.4 4.1 4.3 4.4 4.4 4.1 4.1 4.6 4.6 4.0 0.48 0.74 0.22
 Lactate, mM 1.46 1.25 0.12 1.65a 1.45b 1.45ab 1.48ab 1.49ab 1.39ab 1.36ab 1.25bc 1.17bc 1.13bc 1.09c 0.13 0.25 0.04
 NEFA, µM 604 811 144 833 793 745 737 648 650 717 765 753 566 579 140 0.33 0.60
 TG2, µM 225 282 21 308a 302a 299a 267a 244b 234b 247b 230b 235b 211b 212b 24 0.08 0.03
 Acetate, µM 177 204 16 192 192 187 190 182 205 185 15 0.26 0.70
 Propionate, µM 4.7 4.4 0.7 3.5c 3.8bc 4.2b 4.6b 4.6b 5.2ab 5.6a 0.6 0.81 <0.001
 Butyrate, µM 2.7 3.6 0.5 2.4 2.7 2.9 2.8 2.9 4.1 4.1 0.5 0.29 0.07
MPF and fluxes of blood gases and plasma metabolites
 O2, mol/d 11.2 13.0 1.6 9.9 12.6 13.5 13.2 13.7 13.8 11.4 11.7 11.9 11.0 10.3 1.94 0.37 0.45
 CO2 mol/d −9.9 −10.3 1.66 −10.2 −8.6 −11.5 −9.4 −11.7 −13.3 −9.9 −11.7 −8.2 −7.0 −9.3 3.11 0.87 0.55
 MPF, L/d 4,919 5,430 597 4,700b 5,101b 5,204b 5,611a 6,071a 6,215a 5,134b 5,056b 4,854b 4,315b 4,760b 523 0.56 0.007
 Glucose mol/d 1.7 1.7 0.23 1.0b 1.3b 1.4b 1.8a 1.9a 2.3a 2.0a 2.0a 1.8a 1.7a 1.5b 0.28 0.93 0.04
 Lactate, mmol/d 541 345 268 346 516 617 507 548 754 557 358 316 153 205 257 0.60 0.63
 NEFA, mmol/d 563 575 267 368 110 417 614 528 888 915 813 826 216 561 287 0.97 0.22
 TG2, mmol/d 202 193 49.4 167 187 217 212 184 291 235 227 220 179 172 63.7 0.85 0.49
 Acetate, mmol/d 163 246 63 140 130 263 236 229 202 225 63 0.37 0.38
 Propionate, mmol/d −4.7 −7.2 2.7 −11.5 −12.6 −10.2 −3.4 −0.3 −0.6 −3.5 4.3 0.41 0.08
 Butyrate, mmol/d 4.8 10.9 3.4 4.9 7.6 11.4 6.7 7.6 8.8 6.9 3.0 0.22 0.19

a–cMeans within a row with different superscripts differ (P < 0.05).

1Zero hour is the time for birth of first piglet.

2Triglycerides.