Table 5 Effects of dietary mineral source and birth body weight (BBW) on structural growth (cm) of dairy calves (n = 13 per treatment).

Item	NBW¹		LBW¹		SEM	Treatment effects²
Item	ACMS	IM	ACMS¹	IM¹	SEM	BBW	MS	BBW × MS	Time (T)	BBW × T	MS × T	BBW × MS × T
Body length
Initial	56.7	56.6	60.7	60.4	0.63	< 0.01	0.78	0.88
d 36	64.3	64.7	64.7	64.4	0.53	0.93	0.95	0.50
d 56	73.7	72.4	72.9	72.2	1.15	0.72	0.36	0.77
d 70	78.2	78.5	79.0	80.6	1.11	0.30	0.39	0.55
Overall	72.3	72.1	71.8	72.0	0.59	0.70	0.95	0.75	< 0.01	0.26	0.31	0.73
Wither height
Initial	82.8	82.2	86.9	86.3	0.89	< 0.01	0.45	0.95
d 36	88.0	87.7	90.3	88.7	0.58	0.02	0.09	0.26
d 56	94.3	94.0	95.2	94.4	0.76	0.47	0.46	0.76
d 70	97.0	96.5	99.4	100.1	0.54	< 0.01	0.83	0.26
Overall	93.1	92.8	94.9	94.4	0.52	< 0.01	0.43	0.78	< 0.01	< 0.01	0.13	0.11
Hip height
Initial	81.5	80.6	85.2	85.0	0.87	< 0.01	0.47	0.65
d 36	86.6	86.5	89.0	87.4	0.58	0.02	0.15	0.17
d 56	93.0	92.7	94.0	93.2	0.76	0.40	0.45	0.74
d 70	95.7	95.2	98.3	98.9	0.54	< 0.01	0.99	0.31
Overall	91.7	91.6	93.8	93.2	0.52	< 0.01	0.43	0.66	< 0.01	< 0.01	0.25	0.11
Hip width
Initial	17.4	18.3	19.4	20.3	0.31	< 0.01	< 0.01	0.90
d 36	22.3	21.9	22.2	22.1	0.23	0.70	0.35	0.43
d 56	25.4	24.4	25.5	25.1	0.37	0.40	0.10	0.44
d 70	28.2	27.6	28.8	28.7	0.36	0.10	0.43	0.41
Overall	25.6	24.8	25.4	25.0	0.26	0.94	0.04	0.38	< 0.01	0.17	0.1	0.97
Belly girth
Initial	80.3	80.2	83.1	85.7	1.16	< 0.01	0.27	0.25
d 36	89.4	89.7	90.2	90.0	0.95	0.62	0.94	0.78
d 56	108.7	103.1	104.9	100.2	2.16	0.18	0.02	0.86
d 70	118.0	115.9	119.3	118.4	1.31	0.22	0.26	0.68
Overall	105.3	102.8	105.0	103.4	1.16	0.91	0.08	0.70	< 0.01	0.39	0.03	0.68
Heart girth
Initial	75.8	75.2	78.7	80.0	0.97	< 0.01	0.33	0.14
d 36	83.5^b	84.2^b	86.9^a	84.5^b	0.61	0.01	0.16	0.02
d 56	96.0	94.3	98.7	96.8	1.20	0.06	0.17	0.94
d 70	101.9	101.3	105.5	104.0	0.90	< 0.01	0.27	0.61
Overall	93.9	93.7	97.0	94.6	0.72	0.01	0.08	0.17	< 0.01	0.83	0.65	0.89

¹IM inorganic minerals source, ACMS advanced chelated mineral source, LBW low birth weight, NBW normal birth weight.
²Contrasts for BBW (birth body weight), MS (mineral source) and interaction (BBW × MS).
^a,b,cMeans within a row with different superscripts are significantly different (P < 0.05).

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