Table 3.

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

Item	Treatment (Trt)			Days relative to farrowing (DRF)1							P-value
	CON	FIB	SEM	–28	–21	–14	–10	–7	–3	SEM	Trt	DRF
Arterial concentrations of blood gases and plasma metabolites
O2, mM	6.4	6.4	0.12	6.5	6.5	6.5	6.4	6.3	6.3	0.15	0.80	0.66
CO2, mM	30.2	30.9	0.5	30.6	31.0	29.7	30.1	30.4	31.3	0.60	0.40	0.14
Glucose, mM	5.3	5.2	0.15	5.2	5.4	5.2	5.2	5.5	4.9	0.19	0.79	0.23
Lactate, mM	0.86	0.85	0.05	0.83	0.87	0.88	0.93	0.85	0.78	0.06	0.98	0.51
TG2, mM	0.46	0.47	0.06	0.46	0.44	0.46	0.49	0.53	0.43	0.06	0.93	0.56
NEFA, µM	119	121	26	55	109	136	100	149	173	36	0.92	0.22
Acetate, µM	244	306	19	222c	253bc	252bc	285b	312ab	326a	19	0.05	< 0.001
Propionate, µM	3.2	3.6	0.18	3.	3.3	3.5	3.6	3.4	3.5	0.22	0.24	0.33
Butyrate, µM	4.3	5.5	0.46	4.4	4.8	5.1	5.3	5.1	4.6	0.46	0.10	0.36
MPF and fluxes of blood gases and plasma metabolites
O2, mol/d	10.8	11.3	1.7	12.3	9.3	11.9	10.4	10.4	12.2	1.9	0.80	0.69
CO2, mol/d	−12.0	−10.6	2.5	−11.6	−9.1	−14.5	−14.5	−8.4	9.3	4.4	0.82	0.47
MPF, L/d	4,106	4,235	425	3,703	3,745	3,992	4,236	4,542	4,806	396	0.83	0.23
Glucose, mol/d	1.8	2.0	0.25	2.7	2.2	1.7	1.8	1.5	1.5	0.38	0.62	0.23
Lactate, mmol/d	123	158	50	112	84	133	166	149	208	61	0.65	0.55
TG2 mmol/d	65	95	24	28	39	49	103	97	163	41	0.36	0.14
NEFA, mmol/d	−324	−336	73	−25c	−222b	−270b	−402a	−484a	−576a	89	0.96	0.002
Acetate, mmol/d	310	416	68	296	297	290	344	461	490	83	0.31	0.09
Propionate, mmol/d	−4.7	−4.0	0.1	−4.5	−3.1	−3.8	−3.6	−3.1	−4.9	2.2	0.58	0.85
Butyrate, mmol/d	11.1	11.5	1.6	9.1	11.4	11.7	12.7	11.7	11.1	2.3	0.97	0.70

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

¹Day zero is the day of farrowing.

²Triglycerides.