Effects of dietary cadmium on Mallard ducklings
Journal Article
·
· Environ. Res.; (United States)
Mallard (Anan platyrhynchos) ducklings were fed cadmium in the diet at 0, 5, 10, or 20 ppm from 1 day of age until 12 weeks of age. At 4-week intervals six males and six females from each dietary group were randomly selected, bled by jugular venipuncture, and necropsied. Significant decreases in packed cell volume (PCV) and hemoglobin (Hb) concentration and a significant increase in serum glutamic pyruvic transaminase (GPT) were found at 8 weeks of age in ducklings fed 20 ppm cadmium for 12 weeks. No other blood chemistry measurement, hematological parameter, or tissue histopathological measurement indicated a reaction to cadmium ingestion. Body weight, liver weight, and the ratio of the femur weight to length were not affected by dietary cadmium. Femur cadmium concentration in all ducklings 12 weeks of age declined from the values detected at 4 and 8 weeks of age. Liver cadmium concentrations were significantly higher in relation to the increased dietary levels and in relation to the length of time the ducklings were fed the cadmium diets. At 12 weeks of age the cadmium concentration in liver tissue was twice that in the diet. 38 references.
- Research Organization:
- United States Fish and Wildlife Service, Laurel, MD
- OSTI ID:
- 6742630
- Journal Information:
- Environ. Res.; (United States), Journal Name: Environ. Res.; (United States) Vol. 32:2; ISSN ENVRA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
560305* -- Chemicals Metabolism & Toxicology-- Vertebrates-- (-1987)
63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
ANIMALS
BIOASSAY
BIOLOGICAL EFFECTS
BIOLOGICAL LOCALIZATION
BIRDS
BODY
CADMIUM
DIGESTIVE SYSTEM
DISTRIBUTION
DOSE-RESPONSE RELATIONSHIPS
DUCKS
ELEMENTS
FOWL
GLANDS
INGESTION
INTAKE
KIDNEYS
LIVER
METALS
ORGANS
SKELETON
TISSUE DISTRIBUTION
VERTEBRATES
63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
ANIMALS
BIOASSAY
BIOLOGICAL EFFECTS
BIOLOGICAL LOCALIZATION
BIRDS
BODY
CADMIUM
DIGESTIVE SYSTEM
DISTRIBUTION
DOSE-RESPONSE RELATIONSHIPS
DUCKS
ELEMENTS
FOWL
GLANDS
INGESTION
INTAKE
KIDNEYS
LIVER
METALS
ORGANS
SKELETON
TISSUE DISTRIBUTION
VERTEBRATES