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. 2023 Jan 6;102(3):102477. doi: 10.1016/j.psj.2023.102477

Table 2.

Analyzed Zn concentrations in diets of broilers from 14 to 39 d of age.1

Zn source Added Zn,
mg/kg
Analyzed Zn contents
(d 14–21), mg/kg
Analyzed Zn contents (d 22–39), mg/kg
Control 0 25.72 25.64
ZnS2 60 84.91 85.27
Zn-Prot M3 60 86.93 84.29
1

Values of analyzed Zn contents are based on triplicate determinations.

2

ZnS = Zn sulfate.

3

Zn-Prot M = Zn proteinate with moderate chelation strength (Qf = 51.6).