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Acute bovine pulmonary emphysema caused by the fungus Fusarium semitectum
1Department of Rural Practice, University of Tennessee, College of Veterinary Medicine, Knoxville 37091-1071.
Abstract:
Acute bovine pulmonary emphysema (ABPE) is known to occur throughout the world. The documented causes include 3-methylindole, 4-ipomeanol and perilla ketone. Although 4-ipomeanol is a phytoallexin from Fusarium solani, this is the first reported incidence of toxicity involving Fusarium semitectum. This report describes the poisoning of cattle consuming Fusarium semitectum contaminated pink half-runner bean refuse.
Insights
Acute bovine pulmonary emphysema (ABPE) can be caused by toxins from moldy feed. This study identifies Fusarium semitectum in contaminated bean refuse as a new cause of ABPE in cattle.
Area of Science:
- Veterinary Toxicology
- Ruminant Pathology
- Mycotoxicology
Background:
- Acute bovine pulmonary emphysema (ABPE) is a significant respiratory disease in cattle worldwide.
- Known causes include 3-methylindole, 4-ipomeanol, and perilla ketone.
- 4-ipomeanol is a known toxin produced by Fusarium solani.
Observation:
- This report details a case of cattle poisoning linked to consuming pink half-runner bean refuse.
- The refuse was contaminated with Fusarium semitectum, a fungus not previously associated with bovine toxicity.
Findings:
- Fusarium semitectum was identified as the causative agent of acute bovine pulmonary emphysema in this incident.
- This marks the first documented case of toxicity in cattle attributed to Fusarium semitectum.
Implications:
- Highlights the potential for novel mycotoxins to cause disease in livestock.
- Emphasizes the need for vigilance in identifying and managing fungal contamination in animal feed.
- Suggests expanding the list of known fungal toxins responsible for ABPE.