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Related Experiment Videos

Dieldrin-14C elimination from turkeys.

K L Davison, J L Sell

    Archives of Environmental Contamination and Toxicology
    |January 1, 1978
    PubMed
    Summary
    This summary is machine-generated.

    Investigating dieldrin residue removal in turkeys, this study found common adsorbents ineffective. Starvation accelerated dieldrin elimination, but only when body lipids were significantly reduced.

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    Area of Science:

    • Environmental Toxicology
    • Animal Science
    • Food Safety

    Background:

    • Dieldrin is a persistent organic pollutant that can accumulate in animal tissues.
    • Residues of dieldrin in poultry pose a potential risk to human health.
    • Effective methods for removing dieldrin residues from broiler turkeys are needed.

    Purpose of the Study:

    • To evaluate the efficacy of gastrointestinal adsorbents in removing dieldrin residues from broiler turkeys.
    • To investigate the effect of starvation on dieldrin elimination from turkey tissues.

    Main Methods:

    • Turkeys were orally dosed with dieldrin and dieldrin-14C.
    • Dieldrin elimination was monitored by measuring 14C in droppings.
    • Carcass retention of 14C was quantified in tissues.

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  • Electron capture gas-liquid chromatography was used to measure dieldrin residues in one experiment.
  • Charcoal, Colestipol, and cholestyramine were administered as dietary supplements.
  • Starvation protocols were implemented.

    • Main Results:

    • Gastrointestinal adsorbents (charcoal, Colestipol, cholestyramine) at 5% of the diet did not effectively remove dieldrin residues.
    • Starvation significantly accelerated dieldrin elimination from turkey tissues.
    • The acceleration of dieldrin elimination by starvation was contingent upon reducing body lipids to 10% or less of carcass dry matter.

    Conclusions:

    • Dietary adsorbents are not effective for removing dieldrin residues in broiler turkeys.
    • Nutritional management, specifically severe caloric restriction leading to significant body fat reduction, can enhance dieldrin elimination.
    • Further research may explore optimizing nutritional strategies for contaminant removal in poultry.