| naturally occurring apicomplexan acute interstitial pneumonitis in thick-billed parrots (rhynchopsitta pachyrhyncha). | this report describes acute interstitial pneumonitis due to an apicomplexan parasite with schizogony in endothelial cells of pulmonary vessels accompanied by early and metrocyte stages of sarcocysts in the heart of a thick-billed parrot (rhynchopsitta pachyrhyncha). the pattern of this disease is similar to that of the acute phase (approximately 10-15 days postinoculation) of experimental infections of budgerigars, melopsittacus undulatus, with high doses of sporocysts of sarcocystis falcatula. | 1990 | 2108237 |
| 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 |
| evaluation of antibody response to vaccination against west nile virus in thick billed parrots (rhynchopsitta pachyrhyncha). | west nile virus (wnv) was first documented in north america in new york city in 1999. several deaths attributable to wnv have been reported in captive thick-billed parrots (rhynchopsitta pachyrhyncha), an endangered psittacine native to north america. the serologic responses in 12 captive adult thick-billed parrots after a series of three initial wnv vaccine injections with annual boosters over 6 yr was evaluated. in addition, the serologic responses of 11 thick-billed parrot chicks following an ... | 2011 | 22950325 |
| complete mitochondrial genome of endangered maroon-fronted parrot (rhynchopsitta terrisi) - conspecific relation of the species with thick-billed parrot (rhynchopsitta pachyrhyncha). | maroon-fronted parrot (rhynchopsitta terrisi) is an endangered parrot endemic to pine-oak forests in north-eastern mexico. according to all present classifications, r. terrisi as well as rhynchopsitta pachyrhyncha are treated as a separate species based on some morphological and behavioral discrepancies. despite this formal separation of the two species, some taxonomists conjecture their conspecific character. however, mutual taxonomic position of both species/subspecies was never verified by mo ... | 2014 | 23841618 |
| determination of the minimum anesthetic concentration of sevoflurane in thick-billed parrots (rhynchopsitta pachyrhyncha). | to determine the minimum anesthetic concentration (mac) of sevoflurane in thick-billed parrots (rhynchopsitta pachyrhyncha) and compare mac obtained via mechanical and electrical stimulation. | 2012 | 22924715 |
| radiation therapy of a malignant melanoma in a thick-billed parrot (rhynchopsitta pachyrhyncha). | a male thick-billed parrot (rhynchopsitta pachyrhyncha) was diagnosed with a malignant melanoma of the mandibular beak (gnathotheca). surgical excision was impossible because of the location of the lesion; a combination of radiation therapy and oral antitumor drugs were used to treat the neoplasm. a whole-body computed tomographic scan showed evidence of metastasis in the lungs; the bird, therefore, was considered to have stage iv disease. throughout the treatment period, the bird showed no clin ... | 2010 | 21302760 |
| avian plasma chemistry analysis using diluted samples. | clinical chemistry tests are essential for the diagnosis and monitoring of disease in birds. the small volume of blood that can be obtained from many avian species limits the use of routine in-house chemistry analyzers. the aim of this study was to examine the accuracy and precision of avian plasma chemistry values obtained by use of a benchtop analyzer in samples diluted with sterile water, as compared with undiluted samples. whole blood samples were collected from 13 clinically healthy thick-b ... | 2009 | 20063812 |
| limited geographic variation in the vocalizations of the endangered thick-billed parrot: implications for conservation strategies. | the populations of many species are declining worldwide, and conservation efforts struggle to keep pace with extinction rates. conservation biologists commonly employ strategies such as translocation and reintroduction, which move individuals of endangered species from one part of their range to another. because individuals from endangered populations are nonexpendable, identifying any potential barriers to the establishment of viable populations prior to release of individuals should be a prior ... | 2008 | 22307993 |
| minimum anesthetic concentration of isoflurane in captive thick-billed parrots (rhynchopsitta pachyrhyncha). | to determine the minimum anesthetic concentration (mac) of isoflurane in thick-billed parrots (rhynchopsitta pachyrhyncha). | 2008 | 18241014 |
| serum concentrations of ionized calcium, vitamin d3, and parathyroid hormone in captive thick-billed parrots (rhynchopsitta pachyrhyncha). | serum collected from 68 thick-billed parrots (rhynchopsitta pachyrhyncha) from 15 institutions was analyzed for ionized ca (ica), total ca (tca), p, total protein (tp), albumin (alb), parathyroid hormone (pth), and vitamin d3. values were not distributed normally; 95% frequency intervals were as follows: ica (0.82-1.3 mmol/l), tca (1.37-2.09 mmol/l,), p (0.35-1.75 mmol/l), tp (21-39 g/l), alb (9-13 g/l), pth (0-65.68 pmol/l), and vitamin d3 (5.2-51 nmol/l). sixty percent (+/-7.5%) of tca was ion ... | 2004 | 15305508 |
| fatty acid profiles of crop contents of free-living psittacine nestlings and of commercial hand-feeding formulas. | research on psittacine nutrition is limited, and nestling requirements are poorly understood. this study analysed fatty acid (fa) profiles of crop contents of free-living scarlet macaws (ara macao, n = 18), red-and-green macaws (ara chloropterus, n = 5), cuban parrots (amazona leucocephala bahamensis, n = 27), lilac-crowned amazons (amazona finschi, n = 33) and thick-billed parrots (rhynchopsitta pachyrhyncha, n = 32). the same analysis was carried out on 15 commercial parrot hand-feeding formul ... | 2020 | 32974980 |