Table 5.

CS DMI for calves fed a CS without or with MON, or EOC, or a combination of both MON and EOC (MON × EOC)

	Treatment1					Main effects & interaction, P-value < 2
Measurement	CS	MON	EOC	MON + EOC	SEM	MON	EOC	MON × EOC
N	20	20	20	20	—	—	—	—
DMI, kg/d
0 to 7 d	0.02	0.02	0.02	0.02	0.04
8 to 14 d	0.09	0.10	0.14	0.12	0.04
15 to 21 d	0.10	0.12	0.15	0.17	0.04
22 to 28 d	0.26	0.26	0.29	0.34	0.04
29 to 35 d	0.59	0.59	0.49	0.65	0.04
36 to 42 d	0.96	0.97	0.81	0.90	0.04
43 to 48 d	1.37	1.39	1.26	1.24	0.04
50 to 56 d	1.80	1.86	1.91	1.67	0.04
57 to 63 d	2.13	2.01	2.19	2.14	0.04
64 to 70 d	2.41	2.23	2.66	2.55	0.04
0 to 70 d	0.97	0.96	0.99	0.98	0.02	0.49	0.19	0.94
Total DMI, kg	72.0	71.1	73.5	72.7	1.86	0.52	0.25	0.96

¹CS, calf starter; MON, CS containing monensin; EOC, CS containing essential oil and cobalt; MON+EOC, CS containing monensin, essential oils and cobalt.

² P-value for main effects of MON or EOC and interaction.