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. 2020 Jan 24;99(3):1768–1776. doi: 10.1016/j.psj.2019.11.023

Table 5.

Effect of breed on the mineral and ash content (mg/100 g of albumen and mg/100 g of yolk) of the albumen and yolk of eggs.

Mineral	Genotype/breed¹					Significance
Mineral	Hybrid²	Amarela	Branca	Pedrês	Preta	RSD	P(F)
Albumen
Sodium	158	166	144	159	163	3.8	0.189
Potassium	71	111	88	110	96	3.6	0.069
Phosphorus	6.2	9.6^b	10.7^b	14.2^a	10.2^b	0.59	0.017
Magnesium	6.7	6.8	6.9	8.0	7.5	0.25	0.297
Calcium	0.62	0.00	0.35	0.03	0.16	0.069	0.308
Copper	0.53	0.63	0.56	0.76	0.72	0.055	0.618
Iron	0.40	1.36	0.41	0.52	0.37	0.202	0.257
Zinc	0.14	0.38	0.32	0.42	0.41	0.031	0.706
Manganese	0.00	0.002	0.013	0.011	0.003	0.002	0.070
Ash	490	497	526	517	518	13.6	0.909
Yolk
Sodium	43	53	56	53	68	2.4	0.080
Potassium	106	135	142	137	147	4.5	0.797
Phosphorus	530	474	448	454	430	7.0	0.173
Magnesium	6.8	9.8	8.9	9.0	10.2	0.40	0.609
Calcium	65	55^b	69^a,b	59^b	79^a	3.4	0.043
Copper	0.50	0.66	0.49	0.44	0.35	0.042	0.066
Iron	4.7	5.0	6.3	6.1	4.8	0.28	0.118
Zinc	2.2	2.6	2.6	2.5	2.2	0.09	0.207
Manganese	0.00	0.03	0.21	0.02	0.02	0.033	0.121
Ash	684	813	773	835	806	18.3	0.701

^a,bMeans with no common superscripts are different (P < 0.05).

Abbreviations: RSD, residual standard deviation.

¹

Eggs from Amarela (n = 10), Branca (n = 9), Pedrês Portuguesa (n = 10), and Preta Lusitânica (n = 10) breeds.

²

Eggs from commercial hybrid hens, data not used in the statistical analysis (n = 1).