. 2015 Mar 25;5(2):151–160. doi: 10.3390/ani5020151

Table 5.

Modeling of Met requirement data for female naked neck (Na/Na; Na/na) meat type chicken in starter and grower periods, depending on daily body protein deposition (PD) and predicted daily feed intake (Mean BW: 500 g for starter period; 1400 g for grower period).

Item		Na/Na			Na/na			Na/Na			Na/na
		Starter						Grower
PD (g/d)		8	10	12	8	10	12	12	14	16	12	14	16
Met efficiency (bc⁻¹)		185	185	185	172	172	172	247	247	247	228	228	228
Met requirement (mg/BW_kg^0.67/d)		324	468	721	332	469	691	277	354	467	276	348	445
Met content needed in the diet (%) depending on feed intake
Feed intake (g/d)
Starter	Grower
50	120	0.41	0.59	0.91	0.42	0.59	0.87	0.29	0.37	0.49	0.29	0.36	0.47
60	130	0.34	0.49	0.75	0.35	0.49	0.72	0.27	0.34	0.45	0.27	0.33	0.43
70	140	0.29	0.42	0.65	0.30	0.42	0.62	0.25	0.32	0.42	0.25	0.31	0.40
80	150	0.25	0.37	0.57	0.26	0.36	0.54	0.23	0.30	0.39	0.23	0.29	0.37