. 2023 Dec 28;14(1):111. doi: 10.3390/ani14010111

Table 2.

Quantification of major active components of oregano essential oil in pre-starter and starter feeds.

	OEO %	Storage Days	Carvacrol (mg/kg Feed)	Thymol (mg/kg Feed)
Pre-starter	0.4%	0	275.32 ± 18.99 ^a	14.73 ± 0.98 ^a
	0.4%	15	244.74 ± 2.07 ^b	13.14 ± 0.14 ^b
	1.2%	0	856.31 ± 27.44 ^a	46.67 ± 1.23 ^a
	1.2%	15	720.09 ± 1.95 ^b	39.32 ± 1.36 ^b
	1.2% + PGP 2%	0	930.52 ± 30.81 ^a	49.44 ± 1.55 ^a
	1.2% + PGP 2%	15	794.33 ± 38.54 ^b	46.13 ± 1.79 ^b
Starter	0.4%	0	214.92 ± 6.35 ^a	13.10 ± 0.30 ^a
	0.4%	34	187.54 ± 3.84 ^b	11.44 ± 0.40 ^b
	1.2%	0	845.72 ± 33.5 ^a	46.34 ± 1.45 ^a
	1.2%	34	583.38 ± 9.74 ^b	30.16 ± 1.34 ^b
	1.2% + PGP 2%	0	917.89 ± 42.23 ^a	44.74 ± 2.73 ^a
	1.2% + PGP 2%	34	655.63 ± 11.23 ^b	32.92 ± 2.18 ^b

The letters (a, b) indicate statistically significant differences between the days of storage (considered within each level of supplementation and its corresponding feed) at p ≤ 0.05. Values are (n = 3 ± standard deviation); OEO: oregano essential oil; PGP: purple garlic powder.