Table 3.

Blood plasma concentrations of metabolites and hormones of calves after oral administration of quercetin as quercetin aglycone (QA), rutin trihydrate (RU), or no flavonoid (CTRL) on d 2 and d 29

Item1	Day	Group2			SE	ANOVA (P-value)
		CTRL	QA	RU		Group	Day	Group × day
Total protein, g/L	2	64.0a	59.9b	61.7ab	0.98	0.03	0.001	0.07
	29	58.0	56.5	59.6
Albumin, g/L	2	22.9	22.6	22.5	0.37	0.95	0.001	0.42
	29	26.1	26.5	26.3
Lactate, mmol/L	2	1.68	2.37	2.65	0.27	0.31	0.001	0.04
	29	0.63	0.68	0.69
Glucose, mmol/L	2	7.37	7.14	7.61	0.28	0.35	0.001	0.99
	29	6.58	6.40	6.79
NEFA, µmol/L	2	298	281	298	13	0.87	0.001	0.65
	29	172	177	173
Urea, mmol/L	2	3.80	3.75	3.55	0.26	0.91	0.001	0.82
	29	1.55	1.56	1.55
Insulin, µg/L	2	2.38	1.79	2.41	0.65	0.12	0.08	0.29
	29	4.38	2.09	2.77
Cortisol, nmol/L	2	67.2	62.9	77.9	7.0	0.43	0.001	0.67
	29	11.1	8.6	13.0

^a,bLSM in a row with different superscripts differ (P < 0.05).

¹Values are LSM based on plasma concentrations in blood samples taken before and until 24 h after morning feeding on d 2 and 29, respectively; n = 7 per group.

²Group: QA = 30 µmol/(kg of BW × d) quercetin aglycone; RU = 30 µmol/(kg of BW × d) rutin trihydrate; CTRL = no flavonol fed.