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Giardia infection in budgerigars
L J Filippich1, P A McDonnell, E Munoz
1School of Veterinary Science, University of Queensland.
Australian Veterinary Journal
|June 5, 1998
Summary
Giardia infection, caused by Giardia psittaci, was identified in Australian budgerigars (Melopsittacus undulatus). Infected chicks exhibited poor growth and diarrhea, but treatment with metronidazole was effective in adult birds.
Area of Science:
- Avian medicine
- Parasitology
- Veterinary science
Background:
- Giardia is a protozoan parasite known to infect various animal species.
- Budgerigars are popular companion birds, and understanding their health is crucial for breeders and owners.
Purpose of the Study:
- To identify the presence and species of Giardia in Australian budgerigars.
- To document the clinical signs associated with Giardia infection in budgerigar chicks.
- To evaluate the efficacy of metronidazole treatment for Giardia in adult budgerigars.
Main Methods:
- Samples from budgerigars from two breeding colonies were examined.
- Light and scanning electron microscopy were used for parasite identification.
- In-vitro and in-vivo studies confirmed the Giardia species.
- Treatment efficacy was assessed by fecal examination post-metronidazole administration.
Main Results:
- Giardia infection was confirmed in budgerigars, with the species identified as Giardia psittaci.
- Affected chicks displayed retarded growth, dehydration, and diarrhea.
- Metronidazole treatment in drinking water rendered adult birds' feces Giardia-negative within 5 days.
- Megabacteria were also observed in adult birds but were not treated.
Conclusions:
- This study confirms budgerigars (Melopsittacus undulatus) as a host for Giardia psittaci in Australia.
- Giardia infection can cause significant clinical signs in young budgerigars.
- Metronidazole is an effective treatment for Giardia in adult budgerigars.