Effects of Ginger (Zingiber officinale, Roscoe) Essential Oil on Growth and Laying Performances, Serum Metabolites, and Egg Yolk Antioxidant and Cholesterol Status in Laying Japanese Quail

Table 5

Effects of ginger rhizome essential on laying performances, yolk weight, and yolk cholesterol.

Parameters	Essential oil doses (μl/kg body weight)
	Control	50	100	150	P value
Laying performances	(n=20)	(n=20)	(n=20)	(n=20)
Egg production (%)	69.04 ± 6.14	66.67 ± 3.89	69.05 ± 8.25	70.24 ± 7.14	0.89
Weekly mass of eggs per hen (g)	70.75 ± 3.68	69.44 ± 2.02	72.69 ± 4.19	69.81 ± 2.48	0.37
Egg weight (g)					0.00
Yolk characteristics	(N=12)	(N=12)	(N=12)	(N=12)
Yolk weight (g)	3.68 ± 0.33	3.70 ± 0.32	3.84 ± 0.34	3.73 ± 0.36	0.69
Yolk cholesterol (mg/yolk)					0.00
Yolk cholesterol (mg/g of yolk)					0.00

a, b, and c: on the same line, means with the same letter are not significantly different (p> 0.05). n = number of quails; N= number of eggs.