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Trace Minerals

The trace-mineral recommendations shown below include a safety margin. However, if the feed consumption is low due to heat stress or during the time of developing appetite between point of lay and peak egg production, the dietary trace-mineral content can be increased. This is most easily done by increasing the dietary addition of the trace-mineral premix (for example from 3 kg premix per 1000 kg diet to 3.75 kg premix per 1000 kg diet). Note that local regulations may limit the dietary content of individual trace minerals, which, in turn, may limit how much 'extra' trace-mineral premix can be added to the diet.

The recommendations shown below are for inorganic source of trace minerals; the levels may be lowered if organic (chelated) trace minerals are used. Note that the bioavailability of individual trace minerals depends on the specific form in which they are fed (e.g., the iron in ferric oxide, Fe2O3, is completely unavailable, whereas the iron in ferrous sulfate, FeSO4, is highly available).

In some cases, addition of the trace minerals manganese (Mn), zinc (Zn), and copper (Cu) from an organic (chelated) source may improve eggshell quality, especially mid to late lay. Organic selenium (Se) is recommended in all breeder diets to improve sperm mobility and, therefore, fertility.

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Recommendations for added trace minerals for commercial pullets1

1Minimum recommendations for growing period. Local regulations may limit the dietary content of indivual trace minerals.
220% of Manganese or Zinc may be in organice form.

Recommendations for added trace minerals for commercial laying hens1

1Minimum recommendations for laying period. Local regulations may limit the dietary content of indivual trace minerals.
220% of Manganese or Zinc may be in organice form.

Recommendations for added trace minerals for breeding laying hens1

1Minimum recommendations for growing and laying periods. Local regulations may limit the dietary content of individual trace minerals.
22
0% of Manganese or Zinc may be in organic form.


See also the recommendations for vitamins.

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