. 2025 Oct 10;12:1671325. doi: 10.3389/fvets.2025.1671325

Table 2.

Effects of diet, additive, and their interaction on color derivatives values at 24 h post-mortem of breast meat of broilers slaughtered at day 35 of age.

Treatments		Color derivatives
Diet	Additive	Delta E	Chroma	Hue angle	BI	WI	a/b ratio
Interaction effects
Standard	None	43.97^ab	13.23^ab	85.15^a	30.8^bc	49.43^ab	0.085^b
Standard	Fibrafid 0.15%	46.72^a	13.32^ab	78.75^a	35.03^a	46.71^b	0.199^a
Standard	Fibrafid 0.25%	44.17^ab	11.92^c	87.32^a	27.07^cd	49.3^ab	0.047^c
Standard	TURBO Grow	42.42^ab	13.95^a	−0.20^ab	30.01^bcd	50.92^ab	0.004^d
Reduced	None	43.16^ab	14.06^a	86.07^a	31.96^ab	50.19^ab	0.069^bc
Reduced	Fibrafid 0.15%	42.13^b	12.9^bc	−87.13^b	26.29^d	51.28^a	−0.05^e
Reduced	Fibrafid 0.25%	41.91^b	13.32^ab	0.67^ab	27.86^bcd	51.47^a	−0.012^d
Reduced	TURBO Grow	42.35^ab	14.04^a	87.57^a	30.86^bc	50.99^ab	0.042^c
SEM		0.391	0.121	10.976	0.492	0.385	0.010
Main effects of diet
Standard		44.32^a	13.10^b	62.75^a	30.73^a	49.09^b	0.08^a
Reduced		42.39^b	13.58^a	21.79^b	29.24^b	50.98^a	0.01^b
SEM		0.553	0.172	15.522	0.695	0.545	0.015
Main effects of additive
None		43.56	13.65^a	85.61^a	31.38^a	49.81	0.076^a
Fibrafid 0.15%		44.43	13.11^b	−4.19^c	30.66^a	48.99	0.073^a
Fibrafid 0.25%		43.04	12.62^c	43.99^b	27.46^b	50.39	0.018^b
TURBO Grow		42.39	13.99^a	43.68^b	30.43^a	50.95	0.022^b
SEM		0.782	0.243	21.952	0.983	0.770	0.021
p value
Diet		0.011	0.004	0.007	0.034	0.012	<0.0001
Additive		0.255	<0.0001	0.001	0.001	0.267	<0.0001
Diet*Additive		0.027	0.001	<0.0001	<0.0001	0.028	<0.0001

Color derivative: Delta E (∆E): total color change; Chroma: Saturation index; BI: browning index; WI: whiteness index; a*/b*: redness/yellowness ratio. n = 6 per each additive*diet arrangement. ^a–eMeans in the same column with different superscripts differ significantly (p < 0.05). Means with the same letter are not significantly different.