Table 6.

Housing and dietary effects on external qualities of Japanese quail egg.

	Egg Weight (g)	Egg length (mm)	Egg width (mm)	Shell thickness (mm)	Shell weight (g)	Egg Shape index	Egg shell ratio%	Egg surface area (cm2)	Egg Shell Density (mg/cm2)
Housing systems
Cage rearing × ED	15.29	31.36	24.41	0.21	1.05	78.19	10.15	27.25	46.11
Floor rearing × ED	12.00	31.24	24.37	0.22	1.54	77.78	8.80	22.97	45.95
SEM	0.16	0.08	0.07	0.01	0.02	0.31	0.08	0.28	0.18
Significance	⁎⁎⁎	NS	NS	⁎⁎	⁎⁎⁎	NS	⁎⁎⁎	⁎⁎⁎	NS
Housing systems
Cage rearing × CLD	16.22	35.19	28.63	0.23	1.54	81.41	9.18	28.40	54.53
Floor rearing × CLD	12.18	30.79	23.85	0.21	1.11	77.50	9.20	28.29	48.18
SEM	0.20	2.39	0.22	0.18	0.03	0.31	0.32	0.14	1.22
Significance	⁎⁎⁎	⁎⁎⁎	⁎⁎⁎	NS	⁎⁎⁎	⁎⁎⁎	NS	NS	⁎⁎⁎
Diet
ED × Cage rearing	15.29	31.36	24.41	0.21	1.05	78.19	10.15	27.25	46.11
CLD × Cage rearing	16.22	35.19	28.63	0.23	1.54	81.41	9.20	28.40	54.53
SEM	0.11	0.19	0.20	0.02	0.02	0.29	0.23	0.13	0.45
Significance	⁎⁎⁎	⁎⁎⁎	⁎⁎⁎	⁎⁎	⁎⁎	⁎⁎⁎	⁎⁎	⁎⁎	⁎⁎⁎
Diet
ED × Floor rearing	12.00	31.24	24.37	0.22	1.11	77.50	8.80	22.97	45.95
CLD × Floor rearing	12.18	30.79	23.85	0.36	1.54	77.78	9.20	28.40	48.18
SEM	0.05	0.07	0.07	0.18	0.03	0.37	0.23	0.27	1.18
Significance	NS	⁎⁎⁎	⁎⁎⁎	NS	⁎⁎⁎	NS	NS	⁎⁎⁎	NS

^⁎⁎⁎p < 0.01,.

^⁎⁎p < 0.05, ED=Experimental diet, CLD= Commercial Layer Diet, Cage rearing, Floor rearing.