Lead exposure in dogs fed game meat and offal from culled invasive species in El Palmar National Park, Argentina
| Autor: | Cristian Sosa, Valentina Fernandez, Walter Ezequiel Condorí, Marcela Uhart, Agostina Tammone, Ralph Eric Thijl Vanstreels, Aldo Delaloye, Andrea Caselli |
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| Rok vydání: | 2021 |
| Předmět: |
Meat
Health Toxicology and Mutagenesis Parks Recreational Argentina Food Contamination 010501 environmental sciences 01 natural sciences Animal science Dogs Wild boar biology.animal Environmental Chemistry Ingestion Medicine Animals Food resource 0105 earth and related environmental sciences Dietary Lead biology business.industry National park Deer Dog health General Medicine Pollution Lead Lead exposure business Introduced Species human activities Body condition |
| Zdroj: | Environmental science and pollution research international. 28(33) |
| ISSN: | 1614-7499 |
| Popis: | This is the first field study to evaluate lead exposure in dogs fed game meat and offal and, to our knowledge, the first study exploring associations between game consumption and dog health status. We quantified lead concentrations in blood and hair and haematological parameters of 31 dogs fed game meat and offal from wild boar (Sus scrofa) and axis deer (Axis axis) culled with lead ammunition in El Palmar National Park, Argentina. Despite variable weekly frequency in game consumption, dogs had detectable blood and hair lead levels, demonstrating recent and chronic exposure. Lead geometric mean and SD were 18.91 ± 346.85 μg/dL w.w. in blood (range = 0.53-216.58), and 0.721 ± 6.444 μg/gr d.w. in hair (range = 0.007-34.800). Hair lead levels were relatively low in most samples, except for the oldest dog which had an atypically high value concurrent with anaemia, a common outcome of chronic lead exposure. Dog's owner was significantly predictive of both blood and hair lead levels, which reflects the same feeding patterns for all dogs owned by the same person. Body condition was associated with hair lead, with dogs in good condition presenting higher lead levels. This could be related to greater game consumption by those dogs, resulting in higher lead ingestion. Dogs fed game meat and offal at very low or low frequency (≤4 times per week) showed higher blood lead levels, suggesting there might not be a risk-free frequency for game provision to dogs. Considering the risks of dietary lead exposure, avoiding feeding dogs lead-killed game and replacing lead ammunition with non-toxic alternatives are recommended. This would allow using hunted game as a valuable food resource without unnecessary risk for the health of consumers and the environment. |
| Databáze: | OpenAIRE |
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