Table 2.

Effect of HYD and EO on the productive performance of laying hens during 48 to 60 wk of age.

Item1	Control	HVD+EO	SE	P-value
Egg production rate, %	93.67	96.45	0.87	0.04
Egg weight, g	61.14	61.22	0.48	0.19
Average daily feed intake, g	114	116	1.24	0.76
FCR	2.10	1.96	0.03	0.02
Breaking egg ratio, %	2.57	0.45	0.09	<0.01

¹Each mean represents 10 replicates per treatment, with 20 layers per replicate.

Abbreviations: EO, 200 mg/kg thymol + 50 mg/kg carvacrol; HVD, 25-hydroxyvitamin D.