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Fluoride intoxication in dairy calves.

G A Maylin, R H Eckerlin, L Krook

    The Cornell Veterinarian
    |January 1, 1987
    PubMed
    Summary
    This summary is machine-generated.

    Chronic fluoride intoxication in dairy cattle from contaminated feed caused severe dental issues and reduced milk production. Affected calves exhibited congenital fluorosis, including enamel defects and stunted growth.

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    Area of Science:

    • Veterinary Medicine
    • Toxicology
    • Animal Science

    Background:

    • Chronic fluoride intoxication in dairy cattle has been documented.
    • Contaminated commercial feed was identified as the source of fluoride exposure.
    • Previous findings included dental fluorosis and decreased milk yield.

    Purpose of the Study:

    • To describe the effects of chronic fluoride intoxication on dairy cattle.
    • To detail the manifestations of congenital fluorosis in calves born to affected cows.

    Main Methods:

    • Observational study of a dairy herd with chronic fluoride intoxication.
    • Clinical examination of adult cows and their calves.
    • Assessment of dental abnormalities, milk yield, and calf growth and development.

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    Main Results:

    • Adult cows displayed dental fluorosis and a significant reduction in milk production.
    • Calves exhibited congenital fluorosis, characterized by enamel discoloration and hypoplasia.
    • Skeletal abnormalities in calves included bone mottling, impaired cartilage differentiation, osteopenia, and bone marrow changes.
    • Severely stunted growth was observed in affected calves.

    Conclusions:

    • Feeding fluoride-contaminated commercial feed leads to chronic intoxication in dairy cattle.
    • Congenital fluorosis in calves presents with distinct dental and skeletal abnormalities and growth retardation.
    • Fluoride toxicity has profound adverse effects on both adult dairy cattle productivity and offspring development.