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Related Experiment Videos

Cocklebur poisoning in cattle.

T Martin, E L Stair, L Dawson

    Journal of the American Veterinary Medical Association
    |September 1, 1986
    PubMed
    Summary

    Cocklebur poisoning affected cattle in Oklahoma due to unusual July germination. Diagnosis confirmed by plant stage, grazing evidence, and clinical/necropsy findings.

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    Area of Science:

    • Veterinary Toxicology
    • Plant Science
    • Animal Health

    Background:

    • Cocklebur (Xanthium strumarium) poisoning is a significant concern in livestock.
    • The toxic dicotyledonary stage typically emerges in early spring in Oklahoma.
    • Environmental factors can influence plant growth cycles and toxicity periods.

    Observation:

    • A herd of cattle in Oklahoma experienced cocklebur poisoning in July.
    • Toxic dicotyledonary cocklebur sprouts were found in a lowland pasture near a river.
    • Favorable conditions for germination were created by receding floodwaters and subsequent hot, dry weather.

    Findings:

    • Diagnosis was based on identifying the toxic growth stage of cocklebur.
    • Evidence of plant grazing, clinical signs in cattle, and gross necropsy findings supported the diagnosis.
    • Histopathologic examination of affected cattle provided further diagnostic confirmation.

    Implications:

    • This case highlights the potential for cocklebur toxicity outside typical seasonal patterns.
    • Understanding environmental triggers for germination is crucial for predicting and preventing livestock poisoning.
    • Effective diagnosis relies on integrating field observations, clinical signs, and laboratory analyses.

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