Results 51 to 60 of about 620 (173)

Detecção de fatores de virulência de Escherichia coli e análise de Salmonella spp. em psitacídeos Detection of virulence factors in Escherichia coli and analysis of Salmonella spp. in psittacines

Pesquisa Veterinária Brasileira, 2013
A flora entérica dos psitacídeos é composta principalmente por bactérias Gram positivas. Bactérias Gram negativas, como Escherichia coli e Salmonella spp., apresentam elevado potencial patogênico, sendo consideradas indicativo de problemas de manejo, que
Isadora M. de O. Corrêa, Fernanda Flores, Gustavo H. Schneiders, Larissa Q. Pereira, Benito G. Brito, Maristela Lovato   +5 more
doaj  

Distinct 5′ UTR Requirements for Translation of the Bicistronic X/P mRNA Among Avian Orthobornaviruses

Microbiology and Immunology, Volume 70, Issue 2, Page 80-90, February 2026.
ABSTRACT Orthobornaviruses express X and the phosphoprotein (P) from a bicistronic X/P mRNA, and these proteins regulate polymerase activity. In mammalian orthobornaviruses, the 5′ untranslated region (5′ UTR) of the X/P mRNA controls the translational balance between X and P and thereby promotes efficient replication.
Meng‐Chi Wu, Takehiro Kanda, Ryo Komorizono, Madoka Sakai, Alexander Leacy, Leonardo Susta, Akiko Makino, Keizo Tomonaga   +7 more
wiley   +1 more source

Fatal Sarcocystis falcatula Infection in Three Penguins

Frontiers in Veterinary Science, 2019
Sarcocystis falcatula is a well-known cause of fatal pneumonia in some birds, particularly Old World psittacines. Here we describe fatal sarcosystosis due to S.
Shannon G. M. Kirejczyk, Rachel E. Burns, Michael W. Hyatt, Michael J. Yabsley, Michael J. Yabsley, Julia M. Ter Beest, Zoltan S. Gyimesi, Robert J. Ossiboff, Amelia Waltman, Tracie A. Seimon, Rita McManamon, Rita McManamon   +11 more
doaj   +1 more source

Optimal diet strategy of a large-bodied psittacine: food resource abundance and nutritional content enable facultative dietary specialization by the Military Macaw

Avian Research, 2019
Background Dietary specialization should arise when there is a relatively high abundance of a particular resource, where animals may select food items to obtain an optimal diet that maximizes energy intake.
Sylvia Margarita de la Parra-Martínez, Luis Guillermo Muñoz-Lacy, Alejandro Salinas-Melgoza, Katherine Renton   +3 more
doaj   +1 more source

Factors impacting the complexity of the leporid intracranial joint

Journal of Anatomy, Volume 248, Issue 1, Page 28-39, January 2026.
Anatomy of the intracranial joint and the 2D semi‐landmarks used to capture complexity in the intracranial joint. (a) The intracranial joint can be seen here (in red) between the parietal and occipital dorsally and the basioccipital and basisphenoid ventrally. In hares (as in this figure) the interparietals are fused to obliteration.
Amber P. Wood‐Bailey, Heather E. White, Samuel R. R. Cross, Nathan S. Jeffery, Philip G. Cox, Alana C. Sharp   +5 more
wiley   +1 more source

Prevalence of Neoplastic Diseases in Pet Birds Referred for Surgical Procedures

Veterinary Medicine International, 2016
Neoplastic disease is common in pet birds, particularly in psittacines, and treatment should be primarily aimed at tumor eradication. Nineteen cases of pet birds submitted to diagnostic and/or therapeutic surgical procedures due to neoplastic disease ...
Patrícia F. Castro, Denise T. Fantoni, Bruna C. Miranda, Julia M. Matera   +3 more
doaj   +1 more source

Principais processos neoplásicos encontrados em psitacídeos mantidos em cativeiro Main neoplasic processes in psittacines birds kept in captivity

Pesquisa Veterinária Brasileira, 2009
Um estudo anatomopatológico envolvendo 130 psitacídeos oriundos de centros de triagens, zoológicos e criadouros, visando a determinação da causa de morte destes animais, revelou a presença de neoplasias em sete animais, totalizando 5,4% dos casos.
Silvia Neri Godoy, Venâncio A. Ferreira Alves, Cristina Takami Kanamura, Eliana Reiko Matushima   +3 more
doaj   +1 more source

Structural Insights Into the Nuclear Import of Marek’s Disease Virus Large Tegument Protein

Advances in Virology, Volume 2026, Issue 1, 2026.
Marek’s disease (MD) is a highly contagious neoplastic disorder of poultry caused by MD virus (MDV; gallid alphaherpesvirus 2 [GaAHV2]). Infection results in profound immunosuppression, neurological dysfunction, and the development of malignant T‐cell lymphomas.
Babu Kanti Nath, Renate H. M. Schwab, Camilla M. Donnelly, Daryl Ariawan, Ole Tietz, Jade K. Forwood, Subir Sarker, Pavitra Roychoudhury   +7 more
wiley   +1 more source

Age Difference, Not Food Scarcity or Sibling Interactions, May Drive Brood Reduction in Wild Scarlet Macaws in Southeastern Peru

Diversity
Avian brood reduction was initially thought to be driven by insufficient food supply. Now it is more commonly considered a consequence of asynchronous hatching and resulting siblicide, direct filial infanticide (where parents kill specific chicks) or ...
Gabriela Vigo-Trauco, Gustavo Martínez-Sovero, Donald J. Brightsmith   +2 more
doaj   +1 more source

Continued Advancement in Understanding of Corticosterone in Psittacines

Animals
Understanding physiology and the manner in which psittacine and other avian species cope with stress, as well as the physiological and psychological effects of acute and chronic stress on their body, is critical in learning how to best care for and ...
Timothy J. Brunner, Hailey B. Penticoff, Thomas N. Tully, Jr.   +2 more
doaj   +1 more source