Table 3.

Growth performance of broilers from 0 to 31 D of age.

Items	Vitamin D3 (IU/kg)						SEM	P-value
	80	200	500	1,250	3,125	7,813		VD3	Linear	Quadratic
At 14 D
BW gain (g)	430a,b	419b	443a,b	445a,b	457a	442a,b	3.51	0.039	0.215	0.007
Feed intake (g)	482	468	488	496	501	490	3.36	0.083	0.253	0.022
FCR	1.122	1.118	1.101	1.116	1.096	1.111	0.00	0.417	0.570	0.166
Mortality (%)	0.00	1.67	0.00	1.39	1.67	2.78	0.51	0.600	0.336	0.720
15 to 31 D
BW gain (g)	1,160	1,128	1,176	1,184	1,216	1,181	13.28	0.346	0.321	0.065
Feed intake (g)	1,84a,b	1,761b	1,908a,b	1,900a,b	1,947a	1,897a,b	17.38	0.043	0.195	0.032
FCR	1.158	1.142	1.177	1.166	1.162	1.169	0.00	0.078	0.384	0.689
Mortality (%)	0.00	0.00	0.00	0.00	1.67	0.00	0.49	0.337	0.742	0.410
0 to 31 D
BW gain (g)	1,591	1,543	1,620	1,629	1,676	1,624	10.58	0.129	0.239	0.025
Feed intake (g)	2,315a,b	2,224b	2,395a,b	2,391a,b	2,434a	2,383a,b	20.99	0.026	0.176	0.028
FCR	1.455	1.442	1.479	1.468	1.453	1.468	0.01	0.128	0.538	0.916
Mortality (%)	1.39	1.67	0.00	1.39	3.33	2.78	0.68	0.812	0.416	0.539

^a-bWithin comparisons, means in a row with no common superscript differs significantly (P < 0.05).

Abbreviation: FCR, feed conversion ratio.