Table 3. Korean native black goat (KNBG) meat color and pH under different treatments

Treatment	Sex	Meat cut	Treatment groups	CIE L*	CIE a*	CIE b*	pH
Different gender¹⁾	Male	Rib	Male	33.81±3.46	21.22±1.70	8.70±0.98	6.21±0.03
	Female	Rib	Female	36.86±0.66	22.92±1.06	9.88±0.76	6.46±0.13
	Female	Rib	p-value	0.0069	0.0641	0.0435	0.0010
Raising period²⁾	Female	NR	24 mon	38.42±0.39	22.42±0.93	10.64±0.50	6.55±0.01^a
			48 mon	31.74±0.38	19.71±0.48	8.56±0.54	5.88±0.00^b
			p-value	<0.0001	0.0108	0.0435	<0.0001
Diet combined with storage day³⁾	Castrated male	Loin	KHA1	41.41^a	24.61^a	14.17^a	6.00^b
			KHA5	38.42^b	19.55^b	11.37^b	6.17^a
			KHA10	37.56^Bb	15.23^c	10.05^bc	6.23^a
			KHA15	37.98^b	14.04^c	9.71^c	6.28^a
			SEM	0.663	0.772	0.336	0.040
			KLA1	40.81^a	25.01^a	13.94^a	5.92^c
			KLA5	38.79^b	18.75^b	10.88^b	6.10^b
			KLA10	38.88^Ab	16.53^c	10.26^c	6.19^ab
			KLA15	38.07^b	15.17^c	10.09^c	6.27^a
			SEM	0.289	0.478	0.152	0.027
			SEM (storage day)
			1	0.647	0.395	0.224	0.030
			5	0.459	0.807	0.326	0.027
			10	0.307	0.646	0.226	0.036
			15	0.568	0.651	0.254	0.041
Wet aging time (aging days)⁴⁾	Castrated male	LL	LL0	38.67	22.52	11.19	5.91^by
			LL5	38.07	20.46	9.86	5.88^by
			LL10	38.14^A	21.68	9.57^x	5.96^by
			LL15	36.70	20.48^B	9.80^y	6.21^ax
			SEM	0.53	1.08	0.78	0.03
		BF	BF0	37.8^a	19.75^b	10.39^a	6.08^ax
			BF5	37.84^a	21.28^b	9.00^b	6.07^ax
			BF10	36.8^aby	20.02^b	7.10^cy	6.04^ax
			BF15	36.13^b	25.03^ax	11.07^ax	5.93^by
			SEM	0.33	0.63	0.42	0.01
			SEM (storage day)
			0	0.49	1.40	1.05	0.04
			5	0.34	0.73	0.50	0.02
			10	0.73	0.70	0.39	0.01
			15	0.50	0.42	0.20	0.01
Slaughter age⁵⁾	Female	LL	3 mon	44.99^a	5.65^f	5.23^e	5.79^c
			6 mon	42.47^b	7.44^e	6.13^d	5.87^bc
			9 mon	37.15^c	9.01^d	6.50^d	5.89^b
			12 mon	35.68^d	11.00^c	7.33^c	6.06^a
			24 mon	35.43^d	12.23^b	9.17^b	6.07^a
			36 mon	35.47^d	14.03^a	10.03^a	6.09^a
			SEM	0.10	0.07	0.07	0.01

Data were collected from 28-month-old male and female KNBG with rib cuts used for analysis. ^a,b Superscripts indicate significant differences (p<0.05) within the same column. Data from Kim et al. (2020a).
Data were collected from female KNBG under different raising periods. Goats were raised for 24 months and 48 months. Muscle type was not reported (NR). ^a,b Superscripts indicate significant differences (p<0.05) within the same column. Data from Kim et al. (2020b).
Data were collected from 10 castrated male KNBG. The goats were fed for 90 days under two different feeding systems: KHA (high alfalfa diet treatment, 8:2 alfalfa:concentrate ratio) and KLA (low alfalfa diet treatment, 2:8 ratio). The loin muscle was used for analysis. Samples were cut into 1.5 cm thick slices, placed on polystyrene trays covered with low-density polyethylene (LDPE) film, and stored aerobically at 4±2°C. Numbers (0–15) assigned to each treatment group indicate the storage or aging duration in days. Values are presented as means. SEM was calculated for each diet across storage days and for each storage day across diets. ^a–c Superscripts within the same column indicate significant differences (p<0.05). ^A,B Superscripts within the same column indicate significant differences (p<0.05) between storage days. Data from Kim et al. (2022a).
Data were collected from 21 castrated male KNBGs. Muscle samples included longissimus lumborum (LL) and biceps femoris (BF). The goats were wet-aged vacuum packaging at 4°C. Numbers (0–15) attached to each treatment group represent the storage or aging time duration in days. Values are expressed as means, with SEM (n=8) calculated for each parameter across all storage days. ^a,b Superscripts within the same column indicate significant differences (p<0.05) between storage days. ^x,y Superscripts within the same storage day indicate significant differences (p<0.05) between different muscle types. Data from Ali et al. (2021).
Data were collected from 30 female Boer×KNBG with slaughter ages at 3, 6, 9, 12, 24, and 36 mon. Muscle samples used in this analysis included LL. Values are expressed as means, with SEM (n=30) calculated for each parameter across all slaughter ages. ^a–d Superscripts within the same row indicate significant differences (p<0.05) between slaughter ages. ^a–e Superscripts within the same column indicate significant differences (p<0.05). Data from Choi et al. (2023).