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Karyn Bischoff

Assistant Professor, Animal Health Diagnostic Center
Population Medicine
Research Areas: Heavy metals toxicology; lead poisoning in wildlife; antioxidant imbalances (Selenium and Vitamin E); Lyme disease prevention


I am primarily interested in heavy metals toxicology and antioxidant imbalances. As the faculty member in charge of analytical toxicology at the Animal Health Diagnostics Center at Cornell, I see the effects of toxins in the environment. Even at very low concentrations, some toxins greatly affect an animal’s ability to grow, reproduce, forage and avoid predation. Toxins can have major effects on populations and ecosystems. Lead poisoning is the most common heavy metal poisoning for domestic and wild animals. My research in lead poisoning in cattle is to prevent lead contamination of meat and milk for human consumption, but I am also involved in diagnosis lead poisoning in wild animals, such as waterfowl, and the use of animals as sentinels for lead contamination in the environment.

My interest in antioxidant imbalances has led me to work on selenium and vitamin E, both in domestic animals like goats and cattle and in wild animals like white-tailed deer.

Current areas of research related to wildlife conservation include: 
Lead poisoning

  • Antioxidant imbalances: selenium and vitamin E
  • Using pesticides to control ticks in deer populations in Long Island and prevent the spread of Lyme disease
Karyn Bischoff