. 2021 Mar 1;41(2):237–246. doi: 10.5851/kosfa.2020.e94

Table 2. Bioactive compounds (mg/g sample) and amino acid profiles (% of total amino acids) as indicators of nutritional quality of breast meat from four chicken genotypes.

Item	Broiler	Spent hen	Black-boned	Thai native
Taurine	0.66±0.03^b	ND	1.07±0.25^a	0.26±0.07^c
Alanine	8.99±0.11	8.90±0.06	8.87±0.04	8.96±0.02
Arginine	4.97±0.02^b	4.94±0.03^b	5.11±0.01^a	5.14±0.01^a
Aspartic acid	10.0±0.32^a	9.51±0.07^b	9.68±0.00^b	9.69±0.02^b
Cysteine	0.13±0.00^b	0.13±0.02^b	0.16±0.00^a	0.15±0.01^a
Glutamic acid	13.3±0.30^c	13.6±0.17^bc	13.6±0.02^b	14.1±0.01^a
Glycine	7.91±0.03^c	8.72±0.06^a	7.90±0.01^c	8.07±0.01^b
Histidine	2.86±0.04^c	3.49±0.01^a	2.74±0.01^d	3.07±0.03^b
Isoleucine	4.29±0.14^b	4.22±0.04^b	4.46±0.01^a	4.24±0.00^b
Leucine	8.11±0.01^b	7.95±0.03^c	8.27±0.03^a	8.26±0.03^a
Lysine	7.98±0.03^c	7.86±0.06^d	8.15±0.01^b	8.31±0.03^a
Methionine	2.87±0.01^a	2.74±0.05^b	2.88±0.01^a	2.85±0.02^a
Phenylalanine	3.16±0.01^a	3.04±0.01^c	3.14±0.01^b	3.08±0.02^b
Proline	4.18±0.03^b	4.33±0.02^a	4.16±0.03^b	4.16±0.02^b
Serine	5.42±0.11^a	5.18±0.03^b	5.25±0.01^b	5.25±0.01^b
Threonine	7.45±0.04^c	7.77±0.03^b	7.27±0.01^d	8.18±0.02^a
Tyrosine	2.60±0.02	2.54±0.13	2.54±0.01	2.51±0.01
Valine	5.16±0.09^ab	5.13±0.05^b	5.29±0.01^a	5.11±0.01^b
Total essential AA	47.1±0.13^b	47.1±0.23^b	47.3±0.03^b	48.0±0.16^a
Total non-essential AA	52.9±0.13^a	52.7±0.23^a	52.7±0.03^a	52.0±0.16^b

Results are expressed as mean±SD (n=3).

^a–d

Values in different letters within the same row differ significantly (p<0.05).

ND, not detected; AA, amino acid.