. 2021 Jun 26;99(8):skab198. doi: 10.1093/jas/skab198

Table 4.

AID (%) of CP and AA in six sources of SFM and one source of SFE¹

Item, %	SFM								SFM source		SFE	SFM vs. SFE
Origin:	United States	United States	Ukraine	Ukraine	Hungary	Italy	Mean	SD	SEM	P-value	United States	SEM	P-value
CP	59.6^a	59.9^a	45.7^b	56.7^a	41.2^b	64.2^a	54.55	9.0	3.39	<0.001	66.5	3.31	<0.001
Indispensable AA
Arg	79.9^a	79.8^a	72.4^ab	78.6^a	68.0^b	80.9^a	76.60	5.2	2.82	0.002	85.5	2.67	<0.001
His	73.1^a	74.3^a	67.6^ab	73.8^a	65.4^b	74.7^a	71.50	3.9	1.85	0.001	79.2	1.77	<0.001
Ile	75.8^ab	78.2^a	68.7^c	75.4^ab	69.5^bc	76.2^a	73.95	3.9	1.70	<0.001	80.3	1.62	<0.001
Leu	76.4^ab	78.2^a	69.3^c	75.6^abc	69.7^bc	76.4^ab	74.27	3.8	1.71	0.001	80.7	1.61	<0.001
Lys	64.6^ab	67.8^ab	65.5^ab	70.0^ab	63.5^b	72.3^a	67.28	3.4	2.23	0.016	73.1	2.17	<0.001
Met	85.9^a	86.1^a	82.8^b	85.8^a	82.7^b	86.0^a	84.91	1.7	1.11	0.037	87.7	1.05	0.005
Phe	79.9^ab	81.9^a	72.2^c	78.6^abc	74.7^bc	79.0^ab	77.69	3.6	1.67	0.001	83.8	1.58	0.008
Thr	65.7^a	66.6^a	61.4^ab	68.0^a	57.3^b	68.5^a	64.58	4.4	2.16	0.002	70.7	2.07	<0.001
Trp	81.3^a	82.5^a	79.3^ab	82.5^a	74.3^b	82.8^a	80.46	3.3	1.53	0.002	83.6	1.47	<0.001
Val	72.7^a	74.8^a	65.3^b	71.7^ab	64.7^b	73.2^a	70.40	4.3	1.89	<0.001	77.0	1.79	<0.001
Total	75.4^ab	76.8^a	69.5^bc	75.4^ab	68.2^c	76.5^a	73.6	3.8	1.77	0.001	80.2	1.68	<0.001
Dispensable AA
Ala	63.6^ab	65.8^a	53.2^bc	62.3^abc	50.3^c	66.5^a	60.3	6.8	3.33	0.001	70.2	3.23	<0.001
Asp	71.5^ab	73.0^a	65.7^ab	71.7^ab	65.0^b	72.9^a	70.0	3.7	1.99	0.004	76.6	1.91	<0.001
Cys	62.4^a	55.4^ab	56.8^a	62.3^a	44.5^b	64.0^a	57.6	7.2	3.28	<0.001	64.9	3.16	<0.001
Glu	83.4^ab	85.0^a	78.6^b	82.5^ab	78.7^b	84.2^ab	82.1	2.8	1.58	0.008	86.7	1.52	0.001
Gly	27.6^a	28.8^a	12.6^b	26.3^ab	20.1^ab	36.5^a	25.3	8.2	5.36	0.001	41.3	5.29	<0.001
Ser	63.5^a	64.4^a	57.4^ab	64.2^a	50.4^b	64.5^a	60.7	5.8	2.52	<0.001	69.9	2.41	<0.001
Tyr	67.1^ab	70.2^a	60.3^bc	68.0^ab	62.0^abc	57.1^c	64.1	5.1	2.23	<0.001	73.6	2.12	<0.001
Total	69.1^a	70.2^a	61.9^ab	68.3^a	57.9^b	70.9^a	66.4	5.3	2.46	0.001	74.6	2.36	<0.001
Total AA	72.1^ab	73.4^ab	65.5^bc	71.7^ab	62.8^c	73.6^a	69.8	4.6	2.11	0.001	77.3	2.02	<0.001

¹Each least squares means is the mean of seven observations with the exception that the AID of CP and AA in SFE is the mean of eight observations.

^a–cWithin a row, means without a common superscript differ (P < 0.05).