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Dietary iron and broiler performance.

H A Vahl1, A T van 'T Klooster

  • 1CLO-Institute for Animal Nutrition De Schothorst Meerkoetenweg, Lelystad, The Netherlands.

British Poultry Science
|December 1, 1987
PubMed
Summary
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Adding ferrous sulfate to broiler diets improved weight gain up to a point, after which growth was depressed. The study determined the apparent iron requirement for broilers and its impact on mineral status.

Area of Science:

  • Animal Nutrition
  • Poultry Science
  • Trace Mineral Metabolism

Background:

  • Dietary iron is crucial for broiler health and performance.
  • Optimal iron levels are essential for preventing deficiencies and toxicities.

Purpose of the Study:

  • To investigate the effects of supplemental ferrous sulfate on broiler growth, hematology, and mineral status.
  • To determine the apparent dietary iron requirement for broilers fed a maize-soyabean diet.

Main Methods:

  • Female broilers (1-39 days) were fed diets supplemented with varying levels of ferrous sulfate.
  • Growth performance, hematological parameters, and liver iron, zinc, and copper concentrations were measured.

Main Results:

  • Weight gain plateaued at 20-60 mg added Fe/kg, with higher levels causing growth depression.

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  • Apparent iron requirement was estimated at 100 mg/kg diet.
  • Increased dietary iron elevated liver iron and zinc concentrations and decreased food utilization efficiency.

    • Conclusions:

    • Excessive dietary iron supplementation can negatively impact broiler growth and mineral balance.
    • Standard maize-soyabean diets may be marginal in iron, necessitating careful supplementation strategies.
    • Further research into optimal iron levels and interactions with other minerals is warranted.