OMIA:002106-13146 : Feather, abnormal growth in Melopsittacus undulatus (budgerigar)
Categories: Integument (skin) phene
Links to MONDO diseases: No links.
Mendelian trait/disorder: yes
Mode of inheritance: Probably autosomal recessive
Considered a defect: yes
Key variant known: no
Species-specific name: Feather duster disease, chrysanthemum disease
Species-specific description: Affected animals present with continuous growth of flight, tail and contour feathers and have a reduced live expectancy due to malnutrition.
Inheritance: Oser and Berens von Rautenfeld (1977) report that pedigree analysis from data provided by two German budgerigar breeders support previous suggestions of a recessive mode of inheritance.
Have human generated variants been created, e.g. through genetic engineering and gene editing
Clinical features: Affected birds appear larger in size from as early as 10-14 days of age. As fledglings, their feathers are longer compared to other birds and feather growths continues leading to an inability to fly, obstructed vision and premature death due to severe malnutrition (Oser and Berens von Rautenfeld 1977). The animals are unable to make the characteristics sounds of budgerigars (Perry et al. 1991).
Cite this entry
Note: the references are listed in reverse chronological order (from the most recent year to the earliest year), and alphabetically by first author within a year.
|1994||Gerlach, H. :|
|[Breed-dependent anomalies in ornamental birds]. Tierarztl Prax 22:319-23, 1994. Pubmed reference: 7940507.|
|1991||Perry, R.A., Gill, J., Cross, G.M. :|
|Disorders of the avian integument. Vet Clin North Am Small Anim Pract 21:1307-27, 1991. Pubmed reference: 1767477.|
|1977||Oser, G., Berens von Rautenfeld, D. :|
|Langfedrigkeit als Anomalie beim Wellensittich. Prakt Tierarzt 58:552, 1977.|
- Created by Imke Tammen2 on 19 May 2017