| cryptosporidia in the cloacal coprodeum of red-lored parrots (amazona autumnalis). | cryptosporidiosis was diagnosed in the cloacal coprodeum of two red-lored parrots (amazona autumnalis). the parasites were adhered to the microvillus border of epithelial cells and their presence was associated with loss and atrophy of microvilli. merozoites, trophozoites, gametes, and oocytes were identified with light and transmission electron microscopy. the coprodeal epithelium was hyperplastic and the lamina propria was infiltrated with moderate numbers of heterophils and lymphocytes. | 1979 | 526202 |
| a novel dna virus associated with feather inclusions in psittacine beak and feather disease. | the nature of feather inclusions was characterized in 32 psittacine birds (30 cockatoos, one peach-faced lovebird (agapornis roseicollis), and one red-lored amazon parrot (amazona autumnalis autumnalis] with naturally-acquired psittacine beak and feather disease. intranuclear inclusions within feather epithelial cells and intracytoplasmic inclusions within macrophages in the feather epithelium and pulp cavity contained psittacine beak and feather disease viral antigen when stained by the avidin- ... | 1991 | 1949509 |
| ultrastructural, protein composition, and antigenic comparison of psittacine beak and feather disease virus purified from four genera of psittacine birds. | psittacine beak and feather disease (pbfd) virus, was purified from diseased tissues of a lesser sulphur-crested cockatoo (cacatua sulphurea), a black palm cockatoo (probosiger aterrimus), a red-lored amazon parrot (amazona autumnalis), and a peach-faced lovebird (agapornis roseicollis). the histopathology of diseased feathers and follicular epithelium from the different species was compared; basophilic intranuclear inclusion bodies were identified in the follicular epithelium and intracytoplasm ... | 1990 | 2338723 |
| avian influenza a virus subtype h5n2 in a red-lored amazon parrot. | a 3-month-old red-lored amazon parrot (amazona autumnalis autumnalis) was evaluated for severe lethargy. | 2006 | 16426196 |
| a survey of selected parasitic and viral pathogens in four species of mexican parrots, amazona autumnalis, amazona oratrix, amazona viridigenalis, and rhynchopsitta pachyrhyncha. | isolated populations of four species of mexican parrots were sampled for evidence of selected pathogens of concern in birds originating in latin america. data were collected between june and september 1997, and ectoparasite collection was repeated with rhynchopsitta pachyrhyncha in september 2000. serum samples from nine amazona oratrix, 10 amazona viridigenalis, 6 amazona autumnalis, and 25 r. pachyrhyncha chicks were screened for neutralizing antibodies to psittacid herpesvirus and avian influ ... | 2005 | 17323565 |
| endocarditis due to lactobacillus jensenii in a salvin's amazon parrot (amazona autumnalis salvini). | a 30-year-old salvin's amazon parrot (amazona autumnalis salvini) with a history of a lifelong poor diet and inappropriate housing was presented in lateral recumbency to a veterinary teaching hospital for further evaluation. radiological and ultrasonographic examination revealed a mild proventricular dilatation, mild hepatomegaly, signs of enteritis and airsacculitis. the main laboratory findings included a mild macrocytic hyperchromic anaemia, hypoglobulinaemia, decreased bile acids and increas ... | 2009 | 19156580 |
| branchial cysts in two amazon parrots (amazona species). | a 37-year-old yellow-crowned amazon parrot (amazona ochrocephala) and a 20-year-old red-lored amazon parrot (amazona autumnalis) each presented with a large mass localized on the lateral neck. with the first bird, there was no evidence of signs of pain or discomfort, and the bird prehended and swallowed food normally. the second bird showed signs of mild upper-gastrointestinal discomfort. results of an ultrasound examination and aspiration of the mass on each bird revealed a cystic structure. a ... | 2010 | 20496605 |
| molecular detection and genotyping of chlamydia psittaci in captive psittacines from costa rica. | oropharyngeal and cloacal swabs from 117 captive psittacine birds presented at veterinary clinics (88) and from shelters/rescue centers of wildlife (29) were collected to determine the prevalence of c. psittaci in captive birds in costa rica. samples were collected during 2009 from a total of 19 different species of parrots, with ara macao (33), amazona autumnalis (24), amazona ochrocephala (21), and ara ararauna (8) being the most representative species sampled. c. psittaci was detected in four ... | 2013 | 24163776 |
| retrobulbar adenocarcinoma in an amazon parrot (amazona autumnalis). | retrobulbar neoplasms are not common in mammals and are even more infrequently seen in nonmammalian species. the current report describes a retrobulbar mass creating exophthalmia and neurologic signs in a red-lored amazon parrot (amazona autumnalis). a 27-year-old female parrot presented for a 3-day history of anorexia and a 2-week history of periocular soft tissue swelling and exophthalmia of the right eye. physical examination revealed 9% dehydration and right eye exophthalmia with inability t ... | 2013 | 23404475 |
| intestinal and blood parasites in amazon parrots destined for relocation in guatemala. | approximately 350 amazon parrots were destined for relocation in peten province, northeastern guatemala. in random sampling of the parrots, 95 blood and 75 fecal samples were examined individually for parasites. coccidia were present in 6.0% (3/50) of amazona autumnalis autumnalis, and they were the only parasites detected. there were no blood parasites observed in 64 a. a. autumnalis, four amazona pionus senilis, 16 amazona ferinosa guatemala, 10 amazona albifronsus albifronsus, and one amazona ... | 2001 | 12790397 |
| cholangiocarcinoma in a 4-month-old double yellow-cheeked amazon parrot (amazona autumnalis). | a cholangiocarcinoma was diagnosed in a 4-month-old double yellow-cheeked amazon parrot (amazona autumnalis). histologically, neoplastic cells effaced hepatocellular architecture. ultrastructurally, variably dilated bile ductules were lined by simple cuboidal to low columnar ciliated epithelial cells with sparse cellular organelles and prominent junctional complexes. elongated single cilia arising from basal bodies in the apical cytoplasm were occasionally evident. the presence of such a neoplas ... | 2004 | 2549946 |
| health assessment of captive psittacine species in prerelease programs at costa rican rescue centers. | with stricter laws regulating the capture and possession of wild animals in costa rica, local wildlife-rescue centers have been overwhelmed by an influx of confiscated or relinquished illegal pets, specifically of psittacine species. as part of a nationwide health-assessment program targeting these centers, 122 birds representing five psittacine species ( ara macao, amazona autumnalis, amazona auropalliata, amazona farinosa, aratinga finschi) and one hybrid macaw ( ara macao × ara ambiguus) were ... | 2017 | 29297799 |
| design and use of a 3d prosthetic leg in a red-lored amazon parrot ( amazona autumnalis). | a three-dimensional (3d) prosthesis was designed and built for a red-lored amazon parrot ( amazona autumnalis) with a pre-existing amputation of the distal left leg at the tibiotarsal-tarsometatarsal joint and injuries to the right leg caused by cage companion aggression. the prosthesis consisted of a straight main imprint, with a round element at both ends to provide stability, and a bridge connecting this to a socket without a bottom where the stump could be accommodated and held securely with ... | 2018 | 29905105 |