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[Morphological changes in chickens receiving cadmium with the feed].

A Veselinova, O Bokhorov, Kh Stanchev

    Veterinarno-Meditsinski Nauki
    |January 1, 1985
    PubMed
    Summary

    Cadmium (Cd) exposure in broiler chickens caused severe kidney, heart, and liver damage. Intestinal villi were also affected, indicating chronic toxic lesions from cadmium chloride in their feed.

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    Area of Science:

    • Veterinary Pathology
    • Toxicology
    • Animal Nutrition

    Background:

    • Broiler chickens are a significant agricultural resource.
    • Cadmium is a toxic heavy metal with potential environmental and health impacts.
    • Understanding cadmium toxicity in poultry is crucial for food safety and animal welfare.

    Purpose of the Study:

    • To investigate the pathological effects of dietary cadmium chloride on broiler chickens.
    • To determine the dose-dependent toxicity of cadmium in a practical feed matrix.
    • To assess the impact of cadmium on vital organs and intestinal morphology.

    Main Methods:

    • 100 Plymouth Rock broiler chickens were used, divided into five groups.
    • Groups received a maize-soybean ration supplemented with 0, 2.5, 5, 10, or 20 mg Cd/kg feed.
    • Morphological studies were conducted on kidneys, heart, liver, and small intestine.

    Main Results:

    • Dietary cadmium induced severe dystrophic and necrotic changes with hemorrhages in the kidneys, heart, and liver.
    • Intestinal villi showed alterations: thinning and elongation in the 5 and 10 mg Cd/kg groups, and shortening/thickening in the 20 mg Cd/kg group.
    • These findings demonstrate dose-dependent toxic effects of cadmium chloride.

    Conclusions:

    • Dietary cadmium chloride causes significant organ damage and intestinal lesions in broiler chickens.
    • The observed pathological changes indicate chronic toxicity even at relatively low supplemented levels.
    • Results highlight the risks associated with cadmium contamination in poultry feed and its implications for animal health.

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