Coronaviruses Detected in Brazilian Wild Birds Reveal Close Evolutionary Relationships with Beta- and Deltacoronaviruses Isolated From Mammals [PDF]
This study showed that the most of the coronaviruses (CoVs) detected in Brazilian wild birds clustered with the mouse hepatitis virus A59 strain, belonging to the BetaCoV group. Furthermore, CoV detected in two different bird species, Amazona vinacea and
Arns, Clarice W +8 more
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RESUMO Este trabalho investigou a eficiência do método de quimioluminescência para obtenção das concentrações séricas de hormônios tireoidianos em 23 exemplares de araras [Ara ararauna (n=12) e Ara chloropterus (n=11)], de ambos os sexos [machos (n=11) e
K.R.A. Vieira +6 more
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Molecular markers for population genetic analyses in the family Psittacidae (Psittaciformes, Aves)
The selection of molecular markers for population studies is an important tool for biodiversity conservation. The family Psittacidae contains many endangered and vulnerable species and we tested three kinds of molecular markers for their potential use in
Patrícia J. Faria, Cristina Y. Miyaki
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Sorogrupos e genes de virulência em Escherichia coli isoladas de psitacídeos [PDF]
Escherichia coli isolates from 24 sick psittacine birds were serogrouped and investigated for the presence of genes encoding the following virulence factors: attaching and effacing (eae), enteropathogenic E.
Blanco, Jesus e +7 more
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Necrotic Enteritis Caused by Clostridium perfringens in Blue and Gold Macaws (Ara ararauna)
Clostridium perfringens types A and C, which are gram-positive, anaerobic, spore-forming bacteria, can cause necrotic enteritis in birds. Although Clostridium perfringens is considered a commensal organism in the avian intestinal tract, in association with severe stress, other infectious agents, or immunosuppressive conditions, it can cause disease ...
Mariele de Santi +5 more
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Seroprevalence of Chlamydia psittaci in captive macaws (Ara spp.) in the department of Lima, Peru
The presence of Chlamydia psittaci in captive psittacines may have a subclinical presentation, despite its importance in immunosuppressed birds and humans because of its zoonotic potential.
Nancy Carlos, Elizabeth Portuguez Luyo
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Genetic evidence of extra-pair paternity and intraspecific brood parasitism in the monk parakeet [PDF]
Introduction: The monk parakeet (Myiopsitta monachus) is a widespread invasive species native to southern South America that has become established in many regions of the world.
Bucher, Enrique Hugo +3 more
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Spiders have rich pigmentary and structural colour palettes [PDF]
Elucidating the mechanisms of colour production in organisms is important for understanding how selection acts upon a variety of behaviours. Spiders provide many spectacular examples of colours used in courtship, predation, defence and thermoregulation ...
Blackledge, Todd A +3 more
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Feather mites (Acari: Astigmata) of captive Psittaciformes in Brazil
Feather samples were obtained from the following Psittaciformes birds: Amazona amazonica, Amazona aestiva, Aratinga jandaya, Brotogeris spp., Ara ararauna and Ara chloropterus (total of 37 individuals).
D.M. Pereira +3 more
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Crop Reconstruction Surgery on Blue and Gold Macaws (Ara Ararauna) with Recurrent Crop Fistula
A crop fistula is an abnormal tunnel in the skin and crop tissue due to damage to the crop wall. The causes are ingestion of foreign bodies, sharp objects, trauma, chronic irritation and crop burn. A female Blue and Gold Macaw (Ara ararauna), five months
Nofan Rickyawan, Hazra Maulidina
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