Table 6.

Plasma amino acid levels of taurine, half-cystine, cysteine and methionine observed in fasted dogs after 7 days of feeding each test diet.

	Rice	Lentil	Smooth pea	Fava bean	Wrinkled pea (4,140-4)	Wrinkled pea (Amigold)	P-Value
Half-cystine*	17.61 ± 0.85a	19.16 ± 1.62a	17.46 ± 1.14a	16.43 ± 1.42a	18.34 ± 1.59a	17.13 ± 1.12a	0.42
Cysteine**	132.5 ± 32.79a	2732.75 ± 139.75b	807.38 ± 279.88a, b	458.63 ± 213.27a	158.88 ± 213.27a	147.86 ± 28.58a	0.002
Methionine*	56.31 ± 3.13a	50.18 ± 2.09a	53.58 ± 2.08a	54.74 ± 2.51a	53.35 ± 3.13a	52.55 ± 3.54a	0.52
Taurine**	99.03 ± 11.90a, b	111.14 ± 18.04b	82.24 ± 8.67a, b	72.68 ± 12.74a	86.63 ± 10.95a, b	89.74 ± 15.36a, b	0.021

Diets are listed in order of increasing fiber and amylose content from left to right.

All values expressed nmol/ml (equivalent to μmol/L). Amino acids were measured at a contract analytical laboratory (Amino Acid Laboratory, University of California Davis, Davis, CA, USA) using modified AOAC Official Method 994.12 alternative III.

Data is shown as Mean ± SEM; n = 8 dogs. Different letters indicate significant differences among diets using Tukey's post-hoc analysis (P < 0.05) after significant P-values reported in 1-Way Repeated Measures ANOVA^* and Friedman's One-Way ANOVA on Ranked Data^**. Where no letters are indicated in a row, no significant differences among diets were detected.