Table 3.
Amino acid contents of chicken meat, duck meat, and horse meat

(g/100 g)	Duck		Chicken		Horse
	Breast	Leg	Breast	Leg	Loin	Chuck roll	Arm picnic
	Aspartic acid	4.44±0.45a1)	4.22±0.45abc	4.62±0.38a	4.25±0.07ab	3.69±0.10c	3.68±0.12c	3.82±0.09bc
Threonine*	2.23±0.27a	2.14±0.26ab	2.17±0.23ab	2.08±0.01ab	1.84±0.05bc	1.74±0.09c	1.89±0.08bc
Serine	1.46±0.28a	1.38±0.26a	1.28±0.14ab	1.33±0.11ab	1.16±0.02ab	1.03±0.08b	1.15±0.08ab
Glutamic acid	6.93±0.64a	6.71±0.77ab	6.95±0.53a	6.80±0.07a	5.64±0.15c	5.64±0.36c	5.94±0.16bc
Glycine	2.36±0.20a	1.95±0.18b	2.27±0.26ab	2.15±0.08a	1.94±0.14b	2.24±0.20ab	2.10±0.13ab
Alanine	3.52±0.32a	3.24±0.30ab	3.53±0.36a	3.20±0.08ab	2.87±0.09b	3.10±0.12ab	3.02±0.06b
Cystine	1.53±0.10ab	1.51±0.10ab	1.64±0.23a	1.54±0.19ab	1.18±0.07c	1.34±0.07bc	1.33±0.02bc
Valine*	2.48±0.17ab	2.30±0.20bc	2.61±0.29a	2.34±0.05abc	2.05±0.08c	2.04±0.10c	2.17±0.07c
Methionine*	1.10±0.11abc	1.14±0.14ab	1.32±0.10a	1.06±0.27abc	0.86±0.08c	0.90±0.06bc	1.01±0.01bc
Isoleucine*	2.56±0.20ab	2.45±0.21abc	2.73±0.28a	2.49±0.08abc	2.17±0.10cd	2.12±0.15d	2.29±0.09bcd
Leucine*	5.38±0.54a	5.07±0.50ab	5.46±0.49a	5.02±0.10ab	4.64±0.12b	4.60±0.15b	4.80±0.14ab
Tyrosine	2.16±0.19a	2.18±0.20a	1.62±0.27c	2.20±0.18a	1.75±0.18bc	1.86±0.17abc	2.03±0.09ab
Phenylalanine*	2.22±0.20a	2.06±0.18a	2.20±0.19a	2.08±0.11a	2.06±0.03a	2.08±0.03a	2.13±0.05a
Lysine*	4.10±0.39a	3.90±0.34a	4.24±0.40a	4.06±0.09a	3.86±0.07a	3.87±0.19a	4.01±0.10a
Histidine**	1.40±0.13d	1.46±0.13cd	1.97±0.17a	1.50±0.11cd	1.78±0.07ab	1.66±0.06bc	1.77±0.13ab
Arginine**	3.69±0.33a	3.45±0.37ab	3.64±0.44a	3.46±0.18ab	2.88±0.07c	2.99±0.07bc	3.07±0.08bc
Proline	2.67±0.21a	2.41±0.25ab	2.54±0.24a	2.49±0.16ab	2.18±0.13b	2.44±0.07ab	2.35±0.11ab
Ratio of EAA for adult* (%)	39.96±0.43bc	40.09±0.57bc	40.82±0.23ab	39.82±0.10c	41.10±0.60a	40.02±0.51bc	40.73±0.53ab
Ratio of EAA for children**(%)	50.10±0.43c	50.41±0.68c	51.87±0.29a	50.14±0.12c	52.04±0.78a	50.77±0.49bc	51.53±0.73ab

Different letters are significantly different at 5% level.
Essential amino acids (EAA) for adult;
Essential amino acids (EAA) for children.