TABLE 5.

Comparison of NRC broiler chicken nutrient requirements to 100-g FBF contents¹

	NRC2
	0–21 d	22–42 d	SC	SC+SPI	N-SC	O-SC	O-SC+SPI	SS	CSB 14	CSB+
Kilocalories	320	320	412.8	418.4	402.7	403.02	401.7	411.7	429.5	384.8
Protein and amino acids, g
Crude protein	23	20	19.1	19.8	18.1	17.9	18.4	19.5	18.4	15.8
Arginine	1.25	1.1	0.89	1.31	0.87	1	1.14	0.92	0.82	0.98
Glycine + serine	1.25	1.14	1.44	1.65	1.35	1.38	1.46	1.54	1.37	1.29
Histidine	0.35	0.32	0.47	0.53	0.46	0.48	0.51	0.45	0.42	0.41
Isoleucine	0.8	0.73	0.99	0.9	0.95	0.81	0.8	1.06	0.98	0.66
Leucine	1.2	1.09	1.87	1.68	1.78	1.61	1.58	2.06	1.86	1.43
Lysine	1.1	1	1.34	1.18	1.35	1.08	1.04	1.33	1.2	0.82
Methionine	0.5	0.38	0.33	0.27	0.31	0.28	0.26	0.34	0.32	0.25
Methionine + cysteine	0.9	0.72	0.63	0.48	0.6	0.47	0.44	0.7	0.65	0.52
Phenylalanine	0.72	0.65	0.89	1.08	0.86	0.94	1.02	0.9	0.82	0.78
Phenylalanine + tyrosine	1.34	1.22	1.43	1.68	1.38	1.47	1.58	1.51	1.37	1.29
Proline	0.6	0.55	0.93	0.9	0.83	0.78	0.78	1.17	1.04	0.92
Threonine	0.8	0.74	0.97	0.7	0.91	0.71	0.65	0.98	0.92	0.57
Tryptophan	0.2	0.18	0.3	0.25	0.28	0.24	0.22	0.32	0.31	0.2
Valine	0.9	0.82	1.04	1	1	0.93	0.93	1.09	0.98	0.77
Selected minerals, mg
Iron	8	8	17.2	16.8	16.2	16.5	16.8	15.9	16.0	10.5
Calcium3	1000	900	279.1	279.1	279.1	279.1	279.1	279.1	279.1	452
Nonphytate phosphorus3	450	350	291	291	291	291	291	291	291	290

¹Control chicken diet based on label values: 230.2 (kcal/100 g), crude protein (22%), lysine (0.87%), methionine (0.43%), crude fat (2.5%), crude fiber (7.0%), calcium (1.0–1.1%), phosphorus (0.78%), salt (0.15–0.4%), and sodium (0.01–0.3%); iron (41.5 mg/100 g). FBF protein, amino acid, and iron contents were analyzed in duplicate. CSB+, corn-soy blend plus; CSB14, corn-soy blend 14; FBF, fortified blended food; N-SC, nonextruded sorghum-cowpea; O-SC, overprocessed sorghum-cowpea; SC, sorghum-cowpea; SPI, soy protein isolate; SS, sorghum-soy.

²Data from reference 26.

³FBF calcium and nonphytate phosphorus values based on formulation.