. 2019 Dec 6;4(1):442–451. doi: 10.1093/tas/txz175

Table 3.

True amino acid (AA) digestibilities (%) of dog foods made with human-grade ingredients using the precision-fed cecectomized rooster assay¹

AA	BRP²	CWR	FSP	LBR	TWM	VSR	SEM	P-value
Indispensable AA
Arginine	88.3	89.7	89.3	88.8	88.3	90.1	1.046	0.7636
Histidine	85.0	87.7	84.2	84.5	85.9	85.7	1.706	0.7528
Isoleucine	86.7	87.8	88.3	85.1	86.6	87.9	1.054	0.3388
Leucine	87.8	88.3	89.2	86.3	87.6	89.4	0.979	0.3115
Lysine	86.7^ab	90.1^ab	90.1^a	87.2^ab	86.3^b	87.8^ab	0.954	0.0362
Methionine	90.2^ab	90.2^ab	92.7^a	87.3^b	89.7^ab	91.1^a	0.736	0.0021
Phenylalanine	86.4	87.0	87.0	85.2	86.9	88.1	1.020	0.5228
Threonine	80.4	82.1	83.4	79.0	79.7	83.6	1.546	0.2088
Tryptophan	90.9^ab	91.4^ab	93.4^a	89.3^b	90.4^ab	92.7^a	0.739	0.0117
Valine	83.9	85.1	86.0	83.0	83.1	86.3	1.311	0.3520
Selected dispensable AA
Alanine	86.8	87.2	87.1	85.3	84.8	88.2	0.968	0.1923
Aspartic acid	85.6^ab	85.4^ab	87.4^a	83.7^ab	82.4^b	86.6^ab	0.976	0.0204
Cysteine	56.1	59.0	60.8	60.9	59.6	58.5	2.937	0.8664
Glutamic acid	84.6^ab	86.6^ab	89.0^ab	84.2^b	89.8^a	86.8^ab	1.148	0.0160
Glycine	44.7^a	38.1^ab	34.5^ab	22.1^b	34.1^ab	47.3^a	3.748	0.0024
Proline	82.0^abc	81.3^abc	79.3^c	79.9^bc	85.6^ab	85.8^a	1.303	0.0069
Serine	76.3	78.3	81.8	76.9	77.6	80.1	1.977	0.3847
Tyrosine	82.1	85.1	85.3	81.8	82.7	83.7	1.094	0.1499

¹ n = 4 roosters per treatment.

²BRP = Beef & Russet Potato, CWR = Chicken & White Rice, FSP = Fish & Sweet Potato, LBR = Lamb & Brown Rice, TWM = Turkey & Whole Wheat Macaroni, VSR = Venison & Squash.

^a–cWithin a row, means lacking a common superscript differ (P < 0.05).