. 2021 May 10;6(20):13094–13104. doi: 10.1021/acsomega.1c00739

Table 2. Effects of Amino Acid Deficiency in Low-Protein Diets on Growth and Laying Performance of 38–50 Weeks Laying Hens^a.

groups	IBW (g)	FBW (g)	ADG (g/d)	EP (%)	EW (g)	EM (g/d)	ADFI (g/d)	FER	AFY (%)
PC group	1512.0	1652.9^a	1.72^a	86.9^a	61.7^a	53.5^a	110.7^a	2.07^c	3.08^a
Met-	1507.3	1509.9^b	0.03^c	68.1^c	56.4^c	38.4^c	97.4^c	2.54^a	1.32^c
Lys-	1534.8	1626.7^a	1.12^ab	81.3^ab	59.0^b	48.0^b	107.8^ab	2.25^b	2.17^abc
Ile-	1533.3	1631.7^a	1.20^ab	87.1^a	59.5^b	51.8^a	107.6^ab	2.08^c	2.00^bc
Thr-	1545.3	1600.3^a	0.67^bc	79.7^b	60.0^ab	47.9^b	103.3^b	2.16^bc	2.46^ab
SE^b	16.35	19.86	0.20	1.62	0.45	0.98	1.45	0.04	0.25
P value	0.327	<0.001	<0.001	<0.001	<0.001	<0.001	<0.001	<0.001	<0.001

^abcMeans within a row with no common superscripts differ (P < 0.05).

Pooled standard error of the mean.

Table 2. Effects of Amino Acid Deficiency in Low-Protein Diets on Growth and Laying Performance of 38–50 Weeks Laying Hensa.