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Related Experiment Videos

Mycotoxin interactions in poultry and swine.

W E Huff1, L F Kubena, R B Harvey

  • 1Vet. Toxicol. and Entomol. Res. Lab., U.S. Department of Agriculture College Station, TX 77841.

Journal of Animal Science
|September 1, 1988
PubMed
Summary

Multiple mycotoxins in animal feed can cause complex toxic effects, differing from single mycotoxin exposure. Combinations like aflatoxin with ochratoxin A or T-2 toxin show the highest toxicity in poultry and swine.

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Area of Science:

  • Veterinary Toxicology
  • Animal Nutrition
  • Food Safety

Background:

  • Mycotoxins are toxic secondary metabolites produced by fungi, frequently co-occurring in feed ingredients and finished feeds.
  • The presence of multiple mycotoxins complicates toxicity assessment and clinical sign interpretation in animals.
  • Synergistic or antagonistic interactions between mycotoxins can alter their individual toxicological profiles.

Purpose of the Study:

  • To investigate the complex toxicological interactions of multiple mycotoxins in animal feed.
  • To compare the effects of single versus multiple mycotoxin exposures on animal health.
  • To identify the most toxic mycotoxin combinations relevant to animal agriculture.

Main Methods:

  • Review of existing literature on mycotoxin interactions in animal models.

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  • Analysis of toxicological data from studies involving single and combined mycotoxin exposures.
  • Focus on poultry (broiler chicks) and swine models for evaluating toxicity.

    • Main Results:

    • Multiple mycotoxin exposure leads to diverse and complex toxicity and clinical signs.
    • Synergistic toxicity observed with specific combinations, notably aflatoxin with ochratoxin A or T-2 toxin in broiler chicks.
    • The presence of ochratoxin A can mask diagnostic indicators like fatty livers associated with aflatoxicosis.
    • Aflatoxin + ochratoxin A and aflatoxin + T-2 toxin combinations are identified as particularly toxic in poultry and swine.

    Conclusions:

    • Co-contamination of feed with multiple mycotoxins presents a significant challenge in animal health management.
    • Understanding mycotoxin interactions is crucial for accurate diagnosis and effective risk mitigation strategies.
    • Specific mycotoxin combinations, particularly those involving aflatoxins, require careful monitoring and control in animal feed to prevent severe toxicological outcomes.