Table 11.

Effects of dietary treatments on non-essential amino acid plasma concentrations (μg/g) in broiler chickens.

Treatment			Alanine	Asparagine	Aspartic acid	Cysteine	Glutamic acid	Glutamine	Glycine	Proline	Serine	Tyrosine
Crude protein, g/kg	Feed grain	Arginine:lysine ratio
210	Wheat	104	122.0d	37.5	17.3	19.6	31.9	411.0	72.2	87.8	81.1	59.0
		110	91.6bc	30.9	13.1	16.5	27.6	337.0	55.7	77.9	63.6	44.0
	Sorghum	104	106.9cd	33.5	15.8	13.4	24.0	257.0	58.0	50.6	62.2	55.5
		110	106.0cd	37.2	10.9	13.8	22.8	232.0	57.1	53.7	62.3	55.1
170	Wheat	104	71.8ab	18.7	9.3	15.3	23.8	375.0	98.4	72.9	73.0	51.6
		110	63.5a	20.6	8.4	15.3	25.4	360.0	109.0	74.6	75.6	51.5
	Sorghum	104	98.2bcd	29.6	12.6	12.0	23.8	298.0	93.5	48.6	61.7	54.3
		110	92.0bc	28.1	12.9	12.9	24.0	265.0	85.1	46.8	59.6	56.4
SEM			9.56	4.22	2.23	1.34	2.13	31.70	7.21	7.28	7.03	5.47
Main effects: feed grain
Wheat			87.2	26.9a	12.0	16.6b	27.2b	371b	83.6b	78.3b	73.3b	51.5
Sorghum			100.8	32.1b	13.1	13.0a	23.7a	263a	73.4a	49.9a	61.4a	55.3
CP, g/kg
210			106.3	34.8	14.3b	15.8b	26.6	309	60.7a	67.5	67.3	53.4
170			81.4	24.3	10.8a	13.9a	24.3	324	96.5b	60.7	67.4	53.5
Arginine:lysine ratio
104			99.7	29.8	13.8	15.1	25.9	335.0	80.5	65.0	69.5	55.1
110			88.3	29.2	11.3	14.6	25.0	299.0	76.7	63.3	65.2	51.8
Significance (P-value)
Feed grain			0.054	0.001	0.515	0.001	0.025	<0.001	0.050	<0.001	0.023	0.327
CP			0.001	0.093	0.034	0.047	0.133	0.502	<0.001	0.194	0.968	0.987
Arginine:lysine ratio			0.100	0.837	0.134	0.646	0.555	0.113	0.457	0.740	0.397	0.350
Feed grain × CP			0.048	0.190	0.081	0.400	0.071	0.345	0.437	0.656	0.722	0.993
Feed grain × arginine:lysine ratio			0.253	0.781	0.942	0.253	0.775	0.732	0.870	0.650	0.378	0.282
CP × arginine:lysine ratio			0.539	0.559	0.183	0.347	0.240	0.565	0.342	0.746	0.523	0.270
Feed grain × CP × arginine:lysine ratio			0.321	0.258	0.785	0.491	0.446	0.454	0.100	0.428	0.272	0.424

CP = crude protein.

^{a bc d} Within a column, means without a common superscript differ at P < 0.05.