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Acute and chronic manifestations of Ammi majus induced photosensitisation in ducks
The Veterinary Record
|September 13, 1975
Abstract:
The acute and chronic symptoms seen in ducks following Ammi majus induced photosensitisation are described. The acute changes were inflammatory in nature whereas the chronic changes included severe deformities of the beak and footwebs, mydriasis and eccentric location of the pupil.
Insights
Ammi majus caused photosensitization in ducks, leading to acute inflammation and chronic deformities. Affected ducks showed severe beak and footweb changes, along with pupil abnormalities.
Area of Science:
- Veterinary Pathology
- Toxicology
- Avian Medicine
Background:
- Photosensitization is a condition where skin becomes hypersensitive to sunlight.
- Ammi majus is a plant known to cause toxicosis in livestock.
- Ducks can be susceptible to environmental toxins affecting their health.
Purpose of the Study:
- To describe the acute and chronic clinical signs of Ammi majus-induced photosensitization in ducks.
- To document the pathological changes associated with this condition.
- To provide information for veterinary diagnosis and management.
Main Methods:
- Clinical observation of ducks exposed to Ammi majus.
- Description of gross pathological changes.
- Documentation of specific symptoms like deformities and ocular changes.
Main Results:
- Acute signs were primarily inflammatory.
- Chronic changes included severe deformities of the beak and footwebs.
- Ocular abnormalities such as mydriasis and eccentric pupil location were observed.
Conclusions:
- Ammi majus poses a significant risk to ducks through photosensitization.
- The condition results in both acute inflammatory and severe chronic physical deformities.
- Veterinarians should consider Ammi majus exposure when diagnosing ducks with these clinical signs.