Table 2. Comparison to amino acids composition between Jeju Black, Hanwoo and Wagyu cattle

Amino acids	Hanwoo		Jeju Black cattle		Wagyu (n=10)	Significance¹⁾
Amino acids	Female (n=11)	Castrated male (n=16)	Female (n=8)	Castrated male (n=17)	Wagyu (n=10)	Significance¹⁾
Alanine	16.97±1.27^b2)	22.54±2.98^a	22.41±3.49^a	23.71±3.98^a	22.89±3.18^a	*
Asparagine	2.05±0.83	1.32±0.37	1.42±0.07	1.80±0.51	1.90±0.24	ns
Aspartic acid	1.76±0.06^a	1.64±0.11^a	0.00±0.00^b	1.25±0.31^b	0.05±0.02^b	**
Cysteine	0.98±0.03^b	0.46±0.03^b	1.87±0.14^a	0.58±0.01^b	0.20±0.01^b	*
Glutamic acid	4.01±1.16^a	2.39±0.42^b	1.68±0.09^b	2.08±0.95^b	2.02±0.36^b	**
Glutamine	11.70±1.50^b	25.76±2.62^a	33.86±8.41^a	25.47±7.34^a	25.76±2.62^a	*
Glycine	5.81±0.20	5.80±1.07	5.05±0.40	6.26±1.64	5.61±1.14	ns
Histidine	3.14±0.45	2.59±0.52	3.53±1.20	3.34±1.49	3.51±1.22	ns
Isoleucine	5.16±0.43^a	2.96±0.74^b	2.20±0.38^b	2.72±0.73^b	2.67±0.56^b	***
Leucine	11.07±0.72^a	6.22±1.36^b	4.55±0.65^b	5.59±1.61^b	6.05±1.20^b	***
Lysine	1.64±0.17^b	1.64±0.31^b	2.68±0.37^a	2.18±0.89^ab	2.02±0.37^ab	*
Methionine	5.90±0.28^a	3.80±0.45^b	2.47±0.30^c	3.29±0.93^bc	3.67±0.43^b	***
Ornithine	1.48±0.44	1.18±0.18	1.87±1.15	0.93±0.39	1.73±0.25	ns
Phenylalanine	7.27±0.39^a	4.64±0.75^b	3.65±0.62^b	4.60±1.00^b	4.64±0.78^b	**
Proline	1.95±0.04^b	2.61±0.23^a	2.42±0.33^ab	2.65±0.33^a	2.63±0.31^a	*
Serine	6.05±0.07^a	3.94±0.60^b	2.62±0.01^b	3.81±1.39^b	3.91±0.89^b	**
Threonine	4.98±0.17^a	2.82±0.68^b	1.95±0.28^b	2.74±1.00^b	2.84±0.88^b	**
Tyrosine	1.04±0.13^b	2.66±0.63^a	2.32±0.06^a	2.41±0.64^a	2.69±0.76^a	**
Valine	6.32±0.82^a	4.50±0.92^ab	3.14±0.65^b	3.93±1.42^b	4.43±1.42^ab	*

Significance levels for breeds: ns, not significant, * p<0.05, ** p<0.01, *** p<0.001.
Means±SD.
Different superscript letters indicate significant differences between breeds at p<0.05.