Table 5.

Mean fluorescence intensity (MFI) of expression of cluster of differentiation (CD) 11b, and 62L, by peripheral blood neutrophils of newly weaned heifers injected repeatedly with saline (CTL−), increasing doses of LPS over a 10-d period (CTL+), or CTL+ plus fed the diet supplemented with a low (OBE-L; 0.04% of diet DM) or a high (OBE-H; 0.16% of diet DM) dose of an olive oil bioactive extract (OBE)

	Treatments1					Contrasts P-value
Item2	CTL−	CTL+	OBE-L	OBE-H	SEM	CTL+ vs. OBE	OBE-L vs. OBE-H	CTL− vs. CTL+
Day 0
Neutrophil
CD11b (MFI × 1,000)	1.9	2.1	1.8	1.5	0.18	0.03	0.14	0.33
CD62L (MFI × 1,000)	0.63	0.57	0.72	0.60	0.08	0.38	0.28	0.63
Day 10
Neutrophil
CD11b (MFI × 1,000)	1.7	2.2	2.0	2.0	0.43	0.30	0.70	0.03
CD62L (MFI × 1,000)	0.53	0.62	0.60	0.74	0.11	0.38	0.05	0.22

¹CTL− = control diet + saline injections; CTL+ = control diet + LPS injections; OBE-L = control diet + olive oil bioactive extract at 0.04% of the diet + LPS injection; OBE-H = control diet + olive oil bioactive extract at 0.16% of the diet + LPS injection.

²Results are expressed as least square means from 12 heifers per treatment.