Results 51 to 60 of about 1,902 (182)

Coronaviruses Detected in Brazilian Wild Birds Reveal Close Evolutionary Relationships with Beta- and Deltacoronaviruses Isolated From Mammals [PDF]

open access: yes, 2015
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
core   +1 more source

Avaliação dos níveis séricos de hormônios tireoidianos em araras (Ara spp.) pelo método de quimioluminescência

open access: yesArquivo Brasileiro de Medicina Veterinária e Zootecnia
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
doaj   +1 more source

Molecular markers for population genetic analyses in the family Psittacidae (Psittaciformes, Aves)

open access: yesGenetics and Molecular Biology, 2006
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
doaj   +1 more source

Sorogrupos e genes de virulência em Escherichia coli isoladas de psitacídeos [PDF]

open access: yes, 2011
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
core   +3 more sources

Necrotic Enteritis Caused by Clostridium perfringens in Blue and Gold Macaws (Ara ararauna)

open access: yesJournal of Avian Medicine and Surgery, 2020
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
openaire   +5 more sources

Seroprevalence of Chlamydia psittaci in captive macaws (Ara spp.) in the department of Lima, Peru

open access: yesCiência Animal Brasileira, 2018
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
doaj   +1 more source

Genetic evidence of extra-pair paternity and intraspecific brood parasitism in the monk parakeet [PDF]

open access: yes, 2013
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
core   +3 more sources

Spiders have rich pigmentary and structural colour palettes [PDF]

open access: yes, 2017
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
core   +2 more sources

Feather mites (Acari: Astigmata) of captive Psittaciformes in Brazil

open access: yesArquivo Brasileiro de Medicina Veterinária e Zootecnia
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
doaj   +1 more source

Crop Reconstruction Surgery on Blue and Gold Macaws (Ara Ararauna) with Recurrent Crop Fistula

open access: yesJurnal Sain Veteriner, 2023
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
doaj   +1 more source

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