Table 10.

Egg composition of hens fed a low crude protein (LCP) diet fortified with varying levels of L-Ile compared to a high crude protein (HCP) control during phase 2 (28 to 46 wk of age).

Item	Absolute weight (g)			Proportion (%)			Y:A1
	Albumen	Yolk	Shell	Albumen	Yolk	Shell
CON	36.63	14.84b	6.81a	62.68a,b	25.45b	11.87a	0.407b
Ile70	36.29	15.44a	6.66a,b	61.92b	26.36a	11.72a,b	0.427a
Ile80	36.21	15.38a	6.53b	62.23a,b	26.39a	11.38b	0.425a
Ile90	36.37	15.07a,b	6.57a,b	62.69a,b	25.95a,b	11.36b	0.415a,b
Ile100	35.83	14.72b	6.44b	62.86a	25.81a,b	11.32b	0.411a,b
SEM	0.296	0.141	0.063	0.199	0.185	0.121	0.004
P-value	0.425	<0.001	<0.001	0.005	0.001	0.002	0.002
Contrasts (P-value)
CON vs. Ile70	0.407	0.003	0.088	0.007	<0.001	0.358	<0.001
CON vs. Ile80	0.309	0.008	0.002	0.113	<0.001	0.004	0.002
Linear	0.338	<0.001	0.048	<0.001	0.009	0.085	0.002
Quadratic	0.341	0.867	0.540	0.358	0.622	0.448	0.488

Abbreviation: CON, control.

^a,bValues are statistically significant (P < 0.05).

¹Yolk: Albumin.