Table 6.

Effects of graded levels of ginger essential oil on fertility rate and hatchability traits in Japanese quail.

Parameters	Essential oil doses (μl/kg body weight)
	Control (n = 12)	50 (n = 12)	100 (n = 12)	150 (n = 12)	P value
Fertility (%)	81.89 ± 4.91a	82.14 ± 3.11a	90.71 ± 4.90b	88.54 ± 2.02b	0.01
Hatchability of fertile eggs (%)	65.00 ± 14.01	78.93 ± 6.53	84.29 ± 11.19	72.50 ± 15.09	0.18
Total hatchability (%)	60.71 ± 21.43	71.43 ± 10.16	78.57 ± 27.36	67.14 ± 14.47	0.63
Embryonic mortality (%)	10.08 ± 2.23	9.48 ± 3.72	9.46 ± 1.19	9.66 ± 0.59	0.99
Chick's weight (g)	8.08 ± 1.04	8.17 ± 1.07	8.42 ± 1.22	8.33 ± 0,76	0.40

^a,bOn the same line, means with the same letter were not significantly different (P > 0.05). n = number ofquails.