Table 3.

Least squares means of animal performance in calves¹ fed experimental diets

	Treatments2						Contrasts3
	CON	SEM	VAR	SEM	GAM	SEM	1	2
Number of calves
Begin	37	—	39	—	40	—	—	—
End	34	—	30	—	35	—	—	—
Mortality, %	8.6	6.0	22.3	5.7	12.6	5.7	NS	NS
Mortality, d	14.0	—	13.0	—	12.0	—	—	—
IgG, g/L	8.3	0.5	9.0	0.5	8.4	0.5	NS	NS
Hematocrit, %	34.0	1.1	34.2	1.0	35.1	1.0	NS	NS
Total protein, g/L	58.1	0.9	57.6	0.9	57.3	0.9	NS	NS
Fecal scores	1.44	0.05	1.60	0.05	1.56	0.05	0.02	NS
Fever, % of calves	26.6	7.6	27.5	7.2	33.5	7.2	NS	NS
Fever, d	0.4	0.2	0.5	0.2	0.7	0.2	NS	NS
Scours, % of calves	72.8	6.8	84.8	6.4	82.9	6.4	NS	NS
Scours, d	1.7	0.3	2.7	0.3	2.5	0.3	0.03	NS
Electrolytes, % of calves	27.2	8.0	32.9	7.5	48.8	7.5	NS	NS
Electrolytes, d	0.3	0.1	0.5	0.1	0.7	0.1	0.11	NS
Antibiotics, % of calves	48.7	8.0	61.4	7.5	72.5	7.5	0.05	NS
Antibiotics, d	1.9	0.5	3.0	0.5	3.2	0.5	0.05	NS

¹Data exclude calves that died within 3 d of arrival.

²Treatments: CON = calves fed 454 g/d of calf milk replacer (CMR) to 28 d; VAR = calves fed 454, 681, 908, and 454 g/d of CMR on d 0 to 7, 8 to 14, 15 to 31, and 32 to 41d, respectively; GAM = calves fed CMR as VAR with dietary supplement added at 60, 45, and 30 g/d on d 1 to 5, 6 to 10 and 11 to 15, respectively.

³Contrasts: 1 = CON vs. (VAR + GAM)/2; 2 = VAR vs. GAM.