Table 2 Effects of milk feeding level (medium vs. high) and milk feeding frequency (2 vs. 3) on starter intake, total DMI, ADG, feed efficiency of dairy calves during preweaning, postweaning, and overall (n = 12 calves/treatment).

Item	Treatments¹				SEM	P-value²
Item	ML-2 ×	ML-3 ×	HL-2 ×	HL-3 ×	SEM	L	F	L*F	T	L*T	F*T	LFT
Starter DIM g/d
Preweaning	592	546	508	504	44.2	0.16	0.57	0.63	< 0.01	< 0.01	0.56	0.18
Postweaning	2142	2288	2402	2349	86.0	0.09	0.52	0.17	< 0.01	0.87	0.66	0.88
Overall	902	894	887	870	38.5	0.61	0.75	0.91	< 0.01	< 0.01	0.89	0.64
Total DMI g/d³
Preweaning	1138	1092	1269	1265	44.2	< 0.01	0.57	0.63	< 0.01	0.01	0.56	0.18
Postweaning	2142	2288	2402	2349	86.0	0.09	0.52	0.17	< 0.01	0.87	0.66	0.88
Overall	1339	1331	1496	1480	38.4	< 0.01	0.75	0.91	< 0.01	0.23	0.89	0.64
ADG, g/d/calf
Preweaning	658	595	689	704	29.2	0.02	0.41	0.18	< 0.01	0.10	0.16	0.34
Postweaning	890	880	973	942	33.1	0.03	0.54	0.74	-	-	-	-
Overall	716	666	760	763	22.5	< 0.01	0.31	0.24	< 0.01	0.16	0.27	0.35
Feed efficiency⁴
Preweaning	0.52	0.51	0.52	0.54	0.02	0.25	0.98	0.69	< 0.01	< 0.01	0.23	0.42
Postweaning	0.44	0.39	0.41	0.42	0.02	0.92	0.39	0.21	< 0.01	0.87	0.66	0.88
Overall	0.50	0.49	0.50	0.51	0.01	0.23	0.81	0.42	< 0.01	< 0.01	0.32	0.62
BW, kg
Initial (d 4)	41.1	41.6	41.2	42.1	0.68	0.67	0.31	0.76	-	-	-	-
Final (d 70)	85.4	82.8	89.4	89.3	1.53	< 0.01	0.38	0.39	-	-	-	-

¹Treatments including medium milk level- feeding 2 times (ML-2 ×), medium milk level- feeding 3 times (ML-3 ×), high milk level- feeding 2 times (HL-2 ×), and high milk level- feeding 3 times (HL-3 ×).
²Statistical comparisons: L = feeding level; F = feeding frequency, L × F = feeding level × feeding frequency, T = time, L × T = feeding level × time, F × T = feeding frequency × time, and L × F × T = feeding level × feeding frequency × time.
³Total DMI = DM intake of milk + starter.
⁴ Feed efficiency = ADG (g)/DMI (g).

Quick links

Search