Table 7.

Digestible indispensable amino acid concentration in treatment diets containing different sources of protein

Indispensable amino acid	Treatment1, % DM					Treatment, g/1,000 kcal ME2
	CONd	5% CLHd	CLHd	5% CHd	CHd	CONd	5% CLHd	CLHd	5% CHd	CHd
Arginine	1.87	1.69	1.48	1.74	1.50	5.21	4.71	4.11	4.79	3.95
Histidine	0.53	0.47	0.47	0.48	0.53	1.48	1.30	1.30	1.32	1.40
Isoleucine	0.97	0.93	1.02	0.96	0.95	2.70	2.60	2.83	2.63	2.51
Leucine	1.80	1.72	1.91	1.78	1.68	5.03	4.79	5.30	4.91	4.42
Lysine	1.81	1.72	1.69	1.78	1.56	5.04	4.79	4.70	4.91	4.12
Methionine	0.77	0.79	0.81	0.78	0.78	2.14	2.20	2.26	2.15	2.07
Phenylalanine	1.05	0.97	1.02	1.01	0.89	2.92	2.69	2.83	2.79	2.35
Threonine	0.92	0.85	0.96	0.92	0.86	2.56	2.38	2.66	2.53	2.26
Tryptophan	0.25	0.24	0.25	0.24	0.26	0.70	0.68	0.69	0.66	0.69
Valine	1.16	1.10	1.27	1.15	1.05	3.23	3.06	3.52	3.16	2.77
Methionine + cysteine	1.04	1.02	1.07	1.04	1.01	2.91	2.84	2.98	2.88	2.65
Phenylalanine + tyrosine	1.89	1.74	1.83	1.81	1.71	5.26	4.85	5.08	5.00	4.52

¹CONd: chicken meal diet; 5% CLHd: 5% substitution of chicken liver and heart hydrolysate of chicken meal diet; CLHd: chicken liver and heart hydrolysate diet; 5% CHd: 5% substitution of chicken hydrolysate of chicken meal diet; CHd: chicken hydrolysate diet.

²ME: estimated metabolizable energy based on NRC calculations and modified Atwater factors.