. 2020 Nov 2;100(2):835–843. doi: 10.1016/j.psj.2020.10.047

Table 4.

Effects of magnolol on egg quality of fresh eggs.

Items	C	M100	M200	M300	SEM	P	P-value
Items	C	M100	M200	M300	SEM	P	Linear	Quadratic
4 wk
Egg weight (g)	59.68	60.74	60.72	59.53	0.42	0.61	0.90	0.18
Eggshell strength (kg/cm²)	37.07	36.35	37.52	38.04	0.82	0.90	0.59	0.71
Eggshell thickness (μm)	368.93	364.78	377.67	362	3.34	0.35	0.80	0.39
Eggshell weight (g)	5.84	5.81	5.87	5.7	0.05	0.57	0.38	0.47
Albumen height (mm)	6.65	6.26	6.48	6.42	0.12	0.73	0.68	0.49
HU	78.76	77.72	79.11	79.05	0.73	0.90	0.74	0.74
Yolk weight (g)	15.56	15.63	15.7	15.88	0.11	0.74	0.29	0.80
Yolk index	26.13	25.88	26.13	26.72	0.37	0.13	0.93	0.08
8 wk
Egg weight (g)	59.31	60.27	60.58	60.74	0.42	0.64	0.23	0.64
Eggshell strength (kg/cm²)	34.67^a,b	31.41^b	31.49^b	35.43^a	0.69	0.07	0.70	<0.01
Eggshell thickness (μm)	302.78^a	286.00^b	305.44^a	308.00^a	2.86	0.02	0.15	0.08
Eggshell weight (g)	5.60	5.47	5.55	5.57	0.05	0.77	0.96	0.40
Albumen height (mm)	6.54	6.55	6.52	6.31	0.11	0.87	0.50	0.64
HU	81.61	79.75	79.57	78.07	0.71	0.38	0.09	0.90
Yolk weight (g)	16.06	15.94	16.23	16.64	0.11	0.14	0.05	0.24
Yolk index	27.14	26.49	26.83	27.48	0.29	0.24	0.40	0.07
12 wk
Egg weight (g)	62.51	62.59	61.68	62.26	0.4	0.89	0.64	0.76
Eggshell strength (kg/cm²)	36.72	33.96	34.31	34.34	0.77	0.57	0.33	0.37
Eggshell thickness (μm)	312.33^a	303.56^a,b	311.22^a,b	299.00^b	2.19	0.09	0.09	0.69
Eggshell weight (g)	6.05	5.88	5.86	5.76	0.05	0.19	0.04	0.65
Albumen height (mm)	5.09^b	5.33^b	5.94^a	5.87^a	0.1	<0.01	<0.01	0.06
HU	68.44^b	70.05^a,b	74.66^a	74.19^a	0.88	0.03	<0.01	0.55
Yolk weight (g)	16.87	17.16	16.54	16.56	0.13	0.26	0.17	0.61
Yolk index	26.89	26.53	26.75	25.79	0.38	0.74	0.37	0.70

^a,bMeans not sharing a common superscript letter within the same row differ significantly (P < 0.05).

Abbreviations: C, control group; HU, Haugh unit; M100, M200, and M300, control diets supplemented with 100, 200, and 300 mg/kg of magnolol, respectively.