Table 5.
Egg yolk mineral deposition of zinc, manganese, copper, and iron of eggs from white laying hens fed different sources and levels of Zn, Mn, and Cu from 78 to 98 weeks of age (mg/kg of dry yolk).
Item | Egg yolk mineral deposition |
|||
---|---|---|---|---|
Zn | Mn | Cu | Fe | |
ZMCGly source | 51.4B | 0.91B | 1.39B | 66.6B |
ZMCAA source | 59.5A | 1.10A | 1.73A | 77.4A |
Low level | 60.7a | 1.26a | 1.88a | 77.5a |
High level | 49.9b | 0.78b | 1.34b | 65.9b |
P-value | ||||
Source | 0.009 | 0.004 | 0.001 | 0.015 |
Level | 0.001 | <0.001 | <0.001 | 0.013 |
Source × Level | 0.281 | 0.154 | 0.421 | 0.088 |
SEM | 1.89 | 0.053 | 0.062 | 2.51 |
Zn = zinc; Mn = manganese; Cu = copper; Fe = Iron; SEM = standard error of the mean.
ZMCGly = Zn, Mn, and Cu bis-glycinates.
ZMCAA = Zn, Mn, and Cu amino acid complexed minerals.
Low level = 20, 20, and 3.5 mg of Zn, Mn, and Cu, respectively.
High level = 40, 40, and 7 mg of Zn, Mn, and Cu, respectively.
A,B Within a column, values with different letters differ significantly from the source by Tukey's test (P < 0.05). a,b Within a column, values with different letters differ significantly from the level by Tukey's test (P < 0.05).