. 2018 Dec 11;97(3):998–1009. doi: 10.1093/jas/sky461

Table 4.

Digestible indispensable AA scores¹ values of chicken-based ingredients for adult dogs at maintenance²

	AAFCO					NRC
Item	Chicken meal	Retorted chicken	Steamed chicken	Raw chicken	SEM	Chicken meal	Retorted chicken	Steamed chicken	Raw chicken	SEM
Arginine, %	187.66^b	187.75^b	210.44^a	166.94^c	2.500	151.92^b	151.99^b	170.36^a	135.14^c	2.023
Histidine, %	147.03^c	235.90^a	243.47^a	184.71^b	3.255	81.68^c	131.06^a	135.26^a	102.62^b	1.808
Isoleucine, %	134.73^c	176.21^b	193.13^a	180.34^b	1.645	74.85^c	97.89^b	107.30^a	100.19^b	0.914
Leucine, %	135.73^c	164.50^b	181.35^a	165.24^b	1.636	75.41^c	91.39^b	100.75^a	91.80^b	0.909
Lysine, %	131.54^c	182.90^b	210.62^a	174.30^b	4.143	131.54^c	182.90^b	210.62^a	174.30^b	4.143
Methionine, %	78.58^d	112.10^b	125.91^a	106.17^c	0.721	43.65^d	62.28^b	69.95^a	58.98^c	0.401
Phenylalanine, %	108.06^c	121.69^b	136.87^a	120.94^b	1.518	60.03^c	67.61^b	76.04^a	67.19^b	0.843
Threonine, %	96.36^c	118.12^b	134.59^a	120.97^b	2.083	59.76^c	73.25^b	83.47^a	75.01^b	1.292
Tryptophan, %	79.24^d	106.34^c	117.46^a	111.82^b	0.633	50.31^d	67.51^c	74.58^a	70.99^b	0.401
Valine, %	123.34^c	141.01^b	156.32^a	142.81^b	2.082	68.52^c	78.34^b	86.84^a	79.34^b	1.157

^a–dMeans with different superscripts within a row and guidelines (AAFCO or NRC) differ (P < 0.05); n = 4 roosters per treatment.

¹DIAAS-like % = 100 × [(mg of digestible dietary indispensable AA in 1 g of the dietary protein)/(mg of the minimum recommendation of the same dietary indispensable AA in 1 g of the minimum protein recommendation)].

²DIAAS-like values were calculated from the ileal digestibility of AA in cecectomized roosters and Association of American Feed Control Officials (AAFCO, 2018) recommended allowances and National Research Council (NRC, 2006) minimal requirements of AA for adult dogs at maintenance. The indispensable AA reference patterns are expressed as gram AA per kilogram DM.