Related Experiment Videos
Lead poisoning in Canada geese: a case report
Veterinary and Human Toxicology
|August 1, 1979
Summary
Lead poisoning caused by ingested lead shot is a significant threat to Canada geese. This case report details the diagnosis in geese found at a Kansas wildlife area, highlighting clinical signs and necropsy findings.
Area of Science:
- Wildlife Toxicology
- Avian Pathology
- Environmental Health
Background:
- Lead poisoning is a common cause of mortality in waterfowl.
- Ingestion of lead fishing sinkers and shot is a primary route of exposure.
- Wildlife Management Areas are critical habitats for migratory birds.
Purpose of the Study:
- To report a case of lead poisoning in Canada geese.
- To identify the source and pathological findings associated with lead poisoning.
- To inform wildlife management strategies for mitigating lead exposure.
Main Methods:
- Field observation and collection of dead and moribund Canada geese.
- Necropsy of 17 Canada geese to identify gross lesions.
- Histopathological examination of liver and kidney tissues for lead concentration.
- Analysis of gizzards for the presence of ingested lead shot.
Main Results:
- Seventy-nine dead and 10 debilitated Canada geese were found.
- Clinical signs included weakness, lethargy, anorexia, emaciation, and diarrhea.
- Necropsy revealed impacted esophageal and proventricular matter and numerous lead shot in gizzards.
- Lead concentrations in liver and kidney ranged from 9.21 to 102.56 ug/g.
Conclusions:
- Ingestion of lead shot is confirmed as the cause of poisoning in these Canada geese.
- Clinical signs and pathological findings are consistent with lead toxicosis in avian species.
- Effective management of lead sources in wildlife areas is crucial for preventing waterfowl mortality.