Results 1 to 10 of about 90,756 (181)

Extraembryonic membrane morphology in greater rheas (Rhea americana americana Linnaeus, 1758). [PDF]

Zoomorphology, 2023
The greater rhea, Rhea americana, is a wild ratite of high scientific importance and significant and zootechnical value, especially considering the current development state of Brazilian poultry production, where research aimed at increasing the productivity of these animals has become extremely relevant.
Gadelha AIBB, de Oliveira MF, de Sousa ACFC, Diniz JARA, Lopes IRG, Fernandes BCC, Pereira AF, de Moura CEB.   +7 more
europepmc   +4 more sources

Intussusception Associated with Sand Accumulation in a Greater Rhea (Rhea americana) [PDF]

Acta Veterinaria, 2021
Pathoanatomical studies of diseases that affect wild animals are extremely important as appropriate measures can then be taken for the prevention and control of such diseases.
Batista Jael Soares, de Oliveira Moacir Franco, Teófilo Tiago Da Silva, De Sousa Ana Caroline Freitas Caetano, Santos Wanderson Lucas Alves Dos, Lopes Igor Renno Guimarães, Gadelha Ana Indira Bezerra Barros, Tertulino Moisés Dantas, de Oliveira Gurgel João Vitor, de Oliveira Radan Elvis Matias   +9 more
doaj   +3 more sources

Broad-scale recombination pattern in the primitive bird Rhea americana (Ratites, Palaeognathae). [PDF]

PLoS ONE, 2017
Birds have genomic and chromosomal features that make them an attractive group to analyze the evolution of recombination rate and the distribution of crossing over.
Lucía Del Priore, María Inés Pigozzi
doaj   +3 more sources

Changes in Sperm Morphology, Morphometry, and Motility from the Epididymis to the Vas Deferens in Rheas (Rhea americana, Linnaeus, 1758). [PDF]

Animals (Basel), 2023
Simple Summary The rhea (Rhea americana) is nearly threatened in nature, while playing important ecological and economic roles. Therefore, the study of its reproductive biology is necessary to provide information that will serve as a basis for its ...
Bezerra LGP, Silva AM, Jurema AP, Dantas MRT, Pereira AG, Oliveira MF, Comizzoli P, Silva AR.   +7 more
europepmc   +2 more sources

Development of assays for the characterization of sperm motility parameters, viability, and membrane integrity in the epididymis and vas deferens of the greater rhea (Rhea americana). [PDF]

Anim Reprod, 2023
The objectives of the study were to (1) describe the kinematic parameters of spermatozoa (2) compare methods of evaluating sperm viability (3) validate assays of functionality and integrity of the sperm membrane and (4) evaluate possible changes between ...
Bezerra LGP, Silva AM, Dantas MRT, Dos Santos RP, Moreira SSJ, Pereira AG, de Oliveira MF, Comizzoli P, Silva AR.   +8 more
europepmc   +2 more sources

Infection of ratites with clade 2.3.4.4b HPAIV H5N1: potential implications for zoonotic risk [PDF]

Emerging Microbes and Infections
We detected H5N1 high pathogenicity avian influenza in captive Greater Rhea (Rhea americana). Viral genetic analysis revealed the mammalian associated PB2-E627 K mutation, indicating selection of mammalian-relevant mutations in ratites.
Holly A. Coombes, Jacob Terrey, Audra-Lynne Schlachter, Phoebe McCarter, Isabella Regina, Richard Hepple, Natalie Mcginn, James Seekings, Jayne Cooper, Benjamin Clifton, Benjamin C. Mollett, Marco Falchieri, Alejandro Nunez, Scott M. Reid, Joe James, Ashley C. Banyard   +15 more
doaj   +3 more sources

Cholangiocarcinoma in an American Rhea (Rhea Americana araneipes) [PDF]

Ciência Rural, 2015
Cholangiocarcinomas are neoplasms that originate from the bile duct epithelium. The present case described a cholangiocarcinoma in an adult female American Rhea (Rhea Americana araneipes) by means of gross, histopathology and immunohistochemistry ...
Paulo Ricardo Dell'Armelina Rocha, Letícya Lerner Lopes, Laura Peixoto de Arruda, Caroline Argenta Pescador, Raquel Aparecida Sales da Cruz, Edson Moleta Colodel   +5 more
doaj   +4 more sources

Serum Biochemistry of Greater Rhea (Rhea americana) in Captivity in the Northeast of Brazil

Animals, 2023
We investigated the biochemical profile of greater rheas (Rhea americana) in captivity and correlated these values according to the birds’ sex. A total of 69 serum samples were collected from a breeding site in Mossoró, northeastern Brazil, and analyzed ...
Antonio Humberto Hamad Minervino, Carolina A. S. C. Araújo, Herbert S. Soares, Eloine M. B. Picanço, Yasmine R. Batista Silva, Clara Satsuki Mori, Solange Maria Gennari, Raimundo Alves Barrêto Júnior, Enrico Lippi Ortolani   +8 more
doaj   +2 more sources

Unilateral renal agenesis in greater rhea (Rhea americana Linnaeus, 1758) reared under human care in the potiguar semiarid, Brazil

Medicina Veterinária
Considered the largest wild bird in South America, the Greater Rhea is a ratite endowed with great zootechnical value and scientific importance. Understanding the pathologies that may affect these animals is necessary since they are kept in captivity ...
Ana Caroline Freitas Caetano de Sousa, João Augusto Rodrigues Alves Diniz, Igor Renno Guimarães Lopes, Carlos Eduardo Vale Rebouças, Jael Soares Batista, Juliana Fortes Vilarinho Braga, Moacir Franco de Oliveira   +6 more
doaj   +6 more sources

Morphology of the cardiovascular system in greater rhea (Rhea americana americana Linnaeus, 1758)

Medicina Veterinária, 2021
Greater rheas have been the subject of scientific studies in the various areas of veterinary and biology in order to obtain essential information for their captivity management.
Hélio Noberto Araújo Júnior, Ferdinando Vinícius Fernandes Bezerra, Radan Elvis Matias Oliveira, Herson Silva Costa, Gleidson Benevides Oliveira, Carlos Eduardo Bezerra Moura, Alexsandra Fernandes Pereira, Antônio Chaves Assis Neto, Moacir Franco Oliveira   +8 more
doaj   +3 more sources