Leukoencephalomalacia in two horses induced by oral dosing of fumonisin B1.
- Journal Article
Summary
The research demonstrates that oral administration of fumonisin B1 (FB1) can cause Leukoencephalomalacia (LEM), a neurological disease, in horses.
Introduction to the Research
This research was conducted to investigate whether fumonisin B1 (FB1), when orally administered, could induce Leukoencephalomalacia (LEM) in horses. LEM is a fatal neurological disease that primarily affects horses and is caused by the fungal toxin fumonisin.
Methodology Used
- Two horses, a filly and a colt, were included in the study.
- The filly was given 59.5 mg/kg of a 50% preparation of FB1 in 21 separate doses ranging from 1.25 to 4 mg/kg during a 33-day period.
- The colt was given 44.3 mg/kg of 95% pure FB1 in 20 separate doses ranging from 1 to 4 mg/kg in 29 days.
Observations and Findings
- Both horses displayed nervous signs following the administration of FB1, including apathy, changes in temperament, incoordination, and walking into objects.
- One horse also exhibited paralysis of the lips and tongue.
- Upon examination, the presence of LEM lesions in the brains of these horses confirmed the development of the disease.
Conclusion
The research concluded that FB1, when orally administered, can induce LEM in horses, thereby confirming the link between FB1 and this neurological disorder. This study provides scientific evidence to support the need for preventive measures against FB1 exposure in horses to reduce the risk of LEM.
Cite This Article
Publication
Researcher Affiliations
- Veterinary Research Institute, Onderstepoort, Republic of South Africa.
MeSH Terms
- Animals
- Brain / pathology
- Encephalomalacia / chemically induced
- Encephalomalacia / pathology
- Encephalomalacia / veterinary
- Female
- Fumonisins
- Horse Diseases / chemically induced
- Horses
- Mycotoxins / administration & dosage
- Mycotoxins / poisoning
- Time Factors
Citations
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