نتایج جستجو برای: budgerigar
تعداد نتایج: 185 فیلتر نتایج به سال:
An adult female budgerigar (Melopsittacus undulatus) presented with abdominal enlargement. The condition of the bird deteriorated after needle aspiration for cytological examination. The budgerigar was euthanatized and a complete necropsy was performed. Microscopic sections were prepared and stained with hematoxylin and eosin, Gram staining, periodic acid-Schiff (PAS) and acid-fast staining. Es...
BACKGROUND Parrots belong to a group of behaviorally advanced vertebrates and have an advanced ability of vocal learning relative to other vocal-learning birds. They can imitate human speech, synchronize their body movements to a rhythmic beat, and understand complex concepts of referential meaning to sounds. However, little is known about the genetics of these traits. Elucidating the genetic b...
leiomyosarcoma in birds is relatively rare. this tumor as a muscle neoplasm was reported in captive and free ranging birds. smooth muscle cells may develop to the leiomyosracoma, but splenic smooth muscle trabeculae is most common site of the tumor growth. although budgerigars have an incidence of neoplastic diseases but smooth muscle tumors were rarely reported in this species. to the best of ...
We report the case of a 50 year old clerk with chronic extrinsic allergic alveolitis due to a wreath of feathers from his dead budgerigar hanging in his living-room. Diagnosis was confirmed by serum precipitins, bronchoalveolar lavage and open lung biopsy. It is important to recognize unusual sources of exposure in this disease.
The budgerigar (Melopsittacus undulatus) has an extraordinarily complex, learned, vocal repertoire consisting of both the long rambling warble song of males and a number of short calls produced by both sexes. In warble, the most common elements (>30%) bear a strong resemblance to the highly frequency-modulated, learned contact calls that the birds produce as single utterances. However, aside fr...
Parrots and songbirds learn their vocalizations from a conspecific tutor, much like human infants acquire spoken language. Parrots can learn human words and it has been suggested that they can use them to communicate with humans. The caudomedial pallium in the parrot brain is homologous with that of songbirds, and analogous to the human auditory association cortex, involved in speech processing...
نمودار تعداد نتایج جستجو در هر سال
با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید