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https://www.readbyqxmd.com/read/28698688/retro-orbital-and-disseminated-b-cell-lymphoma-in-a-yellow-collared-macaw-primolius-auricollis
#1
Kim Le, Hugues Beaufrère, Emily Brouwer, S Karlyn Bland, Sarah Wills, Shawn MacKenzie, Heather Chalmers, Chantale Pinard, R Darren Wood, Josepha DeLay, Dale A Smith
A yellow-collared macaw was presented with unilateral left exophthalmia. The complete blood cell count and biochemistry revealed a heterophilic leukocytosis and elevation in liver parameters, respectively. A computed tomography scan showed a contrast-enhancing retrobulbar mass and hepatomegaly. Cytology of the liver was consistent with a round cell tumor, most likely lymphoma. The bird died after 2 months of palliative care. Postmortem examination confirmed a retro-orbital and disseminated B-cell lymphoma.
July 2017: Canadian Veterinary Journal. la Revue Vétérinaire Canadienne
https://www.readbyqxmd.com/read/28625889/massive-attack-of-honeybee-on-macaws-ara-ararauna-and-ara-chloropterus-in-brazil-a-case-report
#2
Elisane Lenita Milbradt, Tarcísio Macedo Silva, Alessandre Hataka, Carlos Roberto Teixeira, Adriano Sakai Okamoto, Raphael Lucio Andreatti Filho
Three adult birds of the species Ara chloropterus and five of the species Ara ararauna from a conservation breeding facility suffered a massive attack by honeybees. The A. chloropterus birds presented swollen puncture lesions with stingers (mainly in the facial regions without feathers), swelling of the eyelids and subcutaneous tissue, and respiratory distress, and they were treated with intramuscular injections of 1.67 mg/kg of promethazine and 10 mg/kg of hydrocortisone followed by removal of the stingers...
June 16, 2017: Toxicon: Official Journal of the International Society on Toxinology
https://www.readbyqxmd.com/read/28376135/a-simple-and-efficient-protocol-for-the-cryopreservation-of-zygotic-embryos-of-macaw-palm-acrocomia-aculeata-jacq-lodd-ex-mart-a-tropical-species-with-a-capacity-for-biofuel-production
#3
Z G Luis, E Scherwinski-Pereira
BACKGROUND: The development of cryopreservation protocols for zygotic embryos has the advantage of direct embryo regeneration into plantlets, an important factor when one´s purpose is to preserve genetic plant resources. OBJECTIVE: Current study developed an efficient and simplified cryopreservation protocol for zygotic embryos of the macaw palm, a type of palm tree with great capacity for biodiesel production. MATERIALS AND METHODS: Embryos were obtained from seeds and rehydrated for 15 h in a 3% sucrose medium...
January 2017: Cryo Letters
https://www.readbyqxmd.com/read/28358607/radiation-therapy-of-periorbital-lymphoma-in-a-blue-and-gold-macaw-ara-ararauna
#4
Amy B Alexander, Lynn Griffin, Matthew S Johnston
An adult male blue and gold macaw (Ara ararauna) was presented for evaluation of a right periorbital mass. Results of diagnostic tests, including periorbital ultrasound, fine-needle aspirate, and cytologic examination, confirmed a diagnosis of periocular lymphoma. Radiographs were suggestive of disseminated disease but because of concerns about the patient's quality of life, localized radiation therapy to address the periorbital disease was pursued. Coarse-fractionated radiation therapy was initiated, and the mass regressed rapidly during the 3-week course of treatment...
March 2017: Journal of Avian Medicine and Surgery
https://www.readbyqxmd.com/read/28358603/metastatic-thymoma-in-a-scarlet-macaw-ara-macao
#5
Barbara Lang, Susanne Vorbrüggen, Ruth Kothe, Gerd Britsch, Volker Schmidt
A 49-year-old female scarlet macaw ( Ara macao ) was presented with a mass in the cervical region. The bird showed no evidence of pain or discomfort, it swallowed food normally, and its breathing pattern was unremarkable. Results of contrast radiographic imaging revealed a well-demarcated mass in the right cervical region not related to the crop. After surgical resection and histopathologic evaluation, a malignant nodular stage of an epithelioid cortical-type thymoma was diagnosed. One year later, metastasis of the thymoma to the lung was diagnosed and confirmed at postmortem examination...
March 2017: Journal of Avian Medicine and Surgery
https://www.readbyqxmd.com/read/28215690/seasonal-and-genera-specific-variations-in-semen-availability-and-semen-characteristics-in-large-parrots
#6
A Bublat, D Fischer, S Bruslund, H Schneider, S Meinecke-Tillmann, A Wehrend, M Lierz
In large parrots electro-stimulation is suitable for collecting semen, and therefore, to facilitate semen examination and artificial insemination. Previous studies have detected differences in the semen collection success rate and semen parameters between psittacine genera. It remained unclear whether these differences were genera-related, seasonal variations or depend on the males' relationship status. To answer these questions, semen collection and spermatological analysis were performed for four psittacine groups (macaws, amazons, eclectus parrots and cockatoos) over 13 months...
March 15, 2017: Theriogenology
https://www.readbyqxmd.com/read/28151077/an-atypical-enteropathogenic-escherichia-coli-isolate-with-possible-human-and-domestic-animal-origin-from-a-free-living-lear-s-macaw-anodorhynchus-leari
#7
André B S Saidenberg, Terezinha Knöbl, Priscilla A Melville, Eveline Zuniga, Sandra R S Salaberry, Nilson R Benites, Paulo E Brandão
An atypical enteropathogenic Escherichia coli was isolated from an asymptomatic nestling of the endangered Lear's Macaw (Anodorhynchus leari). Phylogenetically, it was identical to bovine and human strains and highly similar to other human and domestic animal isolates. We discuss potential routes of transmission and risks to conservation of this species.
April 2017: Journal of Wildlife Diseases
https://www.readbyqxmd.com/read/27904021/scanning-electron-microscopic-study-on-the-tongues-of-seven-avian-species
#8
Shoichi Emura
The dorsal lingual surface of the grey crowned crane (Balearica regulorum), American flamingo (Phoenicopterus rubber), great egret (Ardea alba), mallard (Anas platyrhynchos), Himalayan monal (Lophophorus impejanus), black-necked stilt (himantopus mexicanus) and green macaw (Ara militaris) were examined by scanning electron microscopy. In the grey crowned crane, the surface of the lingual apex was relatively rough. Many openings of the lingual glands in both lateral regions of the lingual body were observed...
2016: Okajimas Folia Anatomica Japonica
https://www.readbyqxmd.com/read/27901394/computed-tomographic-anatomy-of-the-heads-of-blue-and-gold-macaws-ara-ararauna-african-grey-parrots-psittacus-erithacus-and-monk-parakeets-myiopsitta-monachus
#9
Irene A Veladiano, Tommaso Banzato, Luca Bellini, Alessandro Montani, Salvatore Catania, Alessandro Zotti
OBJECTIVE To create an atlas of the normal CT anatomy of the head of blue-and-gold macaws (Ara ararauna), African grey parrots (Psittacus erithacus), and monk parakeets (Myiopsitta monachus). ANIMALS 3 blue-and-gold macaws, 5 African grey parrots, and 6 monk parakeets and cadavers of 4 adult blue-and-gold macaws, 4 adult African grey parrots, and 7 monk parakeets. PROCEDURES Contrast-enhanced CT imaging of the head of the live birds was performed with a 4-multidetector-row CT scanner. Cadaveric specimens were stored at -20°C until completely frozen, and each head was then sliced at 5-mm intervals to create reference cross sections...
December 2016: American Journal of Veterinary Research
https://www.readbyqxmd.com/read/27813580/breeding-of-acrocomia-aculeata-using-genetic-diversity-parameters-and-correlations-to-select-accessions-based-on-vegetative-phenological-and-reproductive-characteristics
#10
S M Coser, S Y Motoike, T R Corrêa, T P Pires, M D V Resende
Macaw palm (Acrocomia aculeata) is a promising species for use in biofuel production, and establishing breeding programs is important for the development of commercial plantations. The aim of the present study was to analyze genetic diversity, verify correlations between traits, estimate genetic parameters, and select different accessions of A. aculeata in the Macaw Palm Germplasm Bank located in Universidade Federal de Viçosa, to develop a breeding program for this species. Accessions were selected based on precocity (PREC), total spathe (TS), diameter at breast height (DBH), height of the first spathe (HFS), and canopy area (CA)...
October 17, 2016: Genetics and Molecular Research: GMR
https://www.readbyqxmd.com/read/27736226/blood-biochemical-values-of-wild-scarlet-macaw-ara-macao-macao-nestlings-and-adults
#11
Lauren Peruffo, Janice D Boyd, Sharman Hoppes, Donald J Brightsmith
Blood biochemical values are useful as indicators of disease in veterinary practice and for health assessments of free-ranging animal populations. We analyzed blood biochemical values for free-living nestling and adult scarlet macaws ( Ara macao macao) in southeastern Peru with an Abaxis VetScan VS2 portable analyzer with Avian/Reptilian Profile Plus rotors. The resulting data were used to create provisional age-independent reference intervals for this instrument for wild scarlet macaw nestlings, calculate blood biochemical ranges for this instrument for wild adults, and examine age-related trends in nestlings...
September 2016: Journal of Avian Medicine and Surgery
https://www.readbyqxmd.com/read/27639565/transfer-of-physical-understanding-in-a-non-tool-using-parrot
#12
Jayden O van Horik, Nathan J Emery
Physical cognition has generally been assessed in tool-using species that possess a relatively large brain size, such as corvids and apes. Parrots, like corvids and apes, also have large relative brain sizes, yet although parrots rarely use tools in the wild, growing evidence suggests comparable performances on physical cognition tasks. It is, however, unclear whether success on such tasks is facilitated by previous experience and training procedures. We therefore investigated physical comprehension of object relationships in two non-tool-using species of captive neotropical parrots on a new means-end paradigm, the Trap-Gaps task, using unfamiliar materials and modified training procedures that precluded procedural cues...
November 2016: Animal Cognition
https://www.readbyqxmd.com/read/27596377/normal-computed-tomographic-features-and-reference-values-for-the-coelomic-cavity-in-pet-parrots
#13
Irene A Veladiano, Tommaso Banzato, Luca Bellini, Alessandro Montani, Salvatore Catania, Alessandro Zotti
BACKGROUND: The increasing popularity gained by pet birds over recent decades has highlighted the role of avian medicine and surgery in the global veterinary scenario; such a need for speciality avian medical practice reflects the rising expectation for high-standard diagnostic imaging procedures. The aim of this study is to provide an atlas of matched anatomical cross-sections and contrast-enhanced CT images of the coelomic cavity in three highly diffused psittacine species. RESULTS: Contrast-enhanced computed tomographic studies of the coelomic cavity were performed in 5 blue-and-gold macaws, 4 African grey parrots and 6 monk parakeets by means of a 4-multidetector-row CT scanner...
September 5, 2016: BMC Veterinary Research
https://www.readbyqxmd.com/read/27315386/bilateral-uveitis-and-hyphema-in-a-catalina-macaw-ara-ararauna-%C3%A3-ara-macao-with-multicentric-lymphoma
#14
Jennifer C Hausmann, Christoph Mans, Allyson Gosling, Jaimie L Miller, Tamara Chamberlin, John R Dunn, Paul E Miller, Kurt K Sladky
A 20-year-old, female Catalina macaw (Ara ararauna × Ara macao ) was presented with bilateral uveitis and hyphema. The hyphema initially improved with 0.12% prednisolone acetate ophthalmic drops (1 drop OU q4h for 7 days), but the hyphema recurred after the drops were tapered. The bird subsequently developed inappetance, weight loss, regurgitation, and lethargy and was euthanatized 24 days after initial presentation. Necropsy revealed marked splenomegaly and hepatomegaly, with significant mucosal ulcerations of the proventriculus and petechiation associated with both kidneys...
June 2016: Journal of Avian Medicine and Surgery
https://www.readbyqxmd.com/read/27315384/pelvic-limb-amputation-for-the-treatment-of-a-soft-tissue-sarcoma-of-the-tibiotarso-tarsometatarsal-joint-in-a-blue-and-gold-macaw-ara-ararauna
#15
Noémie Summa, Sarah Boston, David Eshar, Bridget Lee-Chow, Erin Harrison, Catherine Fischer, Ae-Ri Ji, Brian Stevens, Dale A Smith
An unsexed, 16-year-old blue-and-gold macaw (Ara ararauna) was presented for evaluation of rapidly growing subcutaneous masses at the left tibiotarso-tarsometatarsal joint. Results of incisional biopsy were diagnostic for an intermediate-grade soft-tissue sarcoma. A distal-femoral amputation was performed and the leg was submitted for histopathology. Histopathologic examination confirmed the biopsy diagnosis and revealed neoplastic spread into the bone marrow cavity of the tibiotarsus. Excisional margins were complete...
June 2016: Journal of Avian Medicine and Surgery
https://www.readbyqxmd.com/read/27288529/mating-system-and-genetic-composition-of-the-macaw-palm-acrocomia-aculeata-implications-for-breeding-and-genetic-conservation-programs
#16
Éder C M Lanes, Sérgio Y Motoike, Kacilda N Kuki, Marcos D V Resende, Eveline T Caixeta
Acrocomia aculeata (Arecaceae), a palm endemic to South and Central America, is a potential oil crop. Knowledge of the mating system of this species is limited to its reproductive biology and to studies using molecular markers. The present study analyzed genetic diversity between its developmental stages and determined its prevailing mating system in order to support genetic conservation and breeding programs. We tested 9 microsatellite markers in 27 mother trees (adult plants) and 157 offspring (juvenile plants) from the southeastern region of Brazil...
November 2016: Journal of Heredity
https://www.readbyqxmd.com/read/27135378/environmental-enrichments-for-a-group-of-captive-macaws-low-interaction-does-not-mean-low-behavioral-changes
#17
Jéssica Reimer, Caroline Marques Maia, Eliana Ferraz Santos
Environmental enrichment has been widely used to improve conditions for nonhuman animals in captivity. However, there is no consensus about the best way to evaluate the success of enrichments. This study evaluated whether the proportion of time spent interacting with enrichments indicated the proportion of overall behavioral changes. Six environmental enrichments were introduced in succession to 16 captive macaws, and interaction of the animals with them as well as the behaviors of the group were recorded before and during the enrichments...
October 2016: Journal of Applied Animal Welfare Science: JAAWS
https://www.readbyqxmd.com/read/27088738/comparison-of-calculated-radiation-delivery-versus-actual-radiation-delivery-in-military-macaws-ara-militaris
#18
Daniel C Cutler, Keijiro Shiomitsu, Chin-Chi Liu, Javier G Nevarez
The skin and oral cavity are common sites of neoplasia in avian species. Radiation therapy has been described for the treatment of these tumors in birds; however, its observed effectiveness has been variable. One possible explanation for this variability when radiation is used to treat the head is the unique anatomy of the avian skull, which contains an elaborate set of sinuses not found in mammalian species. To compare a calculated dose of radiation intended to be administered and the actual amount of radiation delivered to the target area of the choana in 3 adult military macaws (Ara militaris), computed tomography scans were obtained and the monitor unit was calculated to deliver 100 cGy (1Gy) by using radiation planning software...
March 2016: Journal of Avian Medicine and Surgery
https://www.readbyqxmd.com/read/27077045/incidence-and-detection-of-beak-and-feather-disease-virus-in-psittacine-birds-in-the-uae
#19
F Hakimuddin, F Abidi, O Jafer, C Li, U Wernery, Ch Hebel, K Khazanehdari
Beak and feather disease is caused by Circovirus, which affects actively growing beak and feather cells of avian species. The disease affects mainly young birds while older birds may overcome the disease with few lasting effects. Due to lack of treatment, the only way to control the disease is through hygiene and early diagnosis. As a diagnostic tool, we have established a Taqman probe based real-time PCR assay to detect the presence of the viral genome in psittacine birds in UAE and reported the incidence of circovirus in different species of psittacine birds...
January 2016: Biomolecular Detection and Quantification
https://www.readbyqxmd.com/read/26982561/first-record-of-paratanaisia-bragai-digenea-eucotylidae-in-blue-and-gold-macaw-ara-ararauna
#20
Tarcísio Macedo Silva, Leonardo Fabrício Pavan, Priscylla Tatiana Chalfum Guimarães-Okamoto, Elisane Lenita Milbradt, Raphael Lúcio Andreatti Filho, Reinaldo José da Silva, Adriano Sakai Okamoto
The aim of this study was to provide the first report on a new host for the digenean Paratanaisia bragai in the caninde macaw Ara ararauna along with the pathological aspects of the infection in the new host. The microscopic findings revealed the presence of granulomatous interstitial nephritis. This study contributes towards knowledge of parasitism by P. bragai in A. ararauna, and emphasizes the need to use best practices in wildlife conservation parks.
January 2016: Revista Brasileira de Parasitologia Veterinária, Brazilian Journal of Veterinary Parasitology
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