Results 11 to 20 of about 91,233 (223)

Morfologia do ovário da ema (Rhea americana) Morphology of the ovary in rhea (Rhea americana) [PDF]

open access: yesPesquisa Veterinária Brasileira, 2007
A morfologia do ovário de emas adultas (Rhea americana) sexualmente maduras foi descrita neste trabalho. Os ovários de 24 fêmeas em fase reprodutiva foram colhidos em abatedouro, tomados dados métricos do diâmetro dos folículos (n = 18) e colhidos ...
Rogério C. Parizzi   +6 more
doaj   +3 more sources

Detecção de Salmonella Anatum em ema (Rhea americana) Detection of Salmonella Anatum in the Greater Rhea (Rhea americana) [PDF]

open access: yesCiência Rural, 2008
Para pesquisa de Salmonella spp. foram coletadas amostras de fígado e conteúdo cecal de 70 emas (Rhea americana) abatidas no Rio Grande do Sul - Brasil.
Rosecler Alves Pereira   +2 more
doaj   +4 more sources

Collateral branches of the aortic arch in the greater Rhea (Rhea americana americana Linnaeus, 1758) [PDF]

open access: yesBioscience Journal, 2017
The greater rhea (Rhea americana americana) is a bird of the Rheidae family, and is known as a ratite for being a flightless bird. This animal has great reproductive and productive potential, according to the products and by-products that it can provide ...
Herson da Silva Costa   +6 more
doaj   +8 more sources

Morphogenesis of the rhea (Rhea americana) respiratory system in different embryonic and foetal stages [PDF]

open access: yesPesquisa Veterinária Brasileira, 2018
: The rhea (Rhea americana) is an important wild species that has been highlighted in national and international livestock. This research aims to analyse embryo-foetal development in different phases of the respiratory system of rheas.
Renata P. Sousa   +7 more
doaj   +5 more sources

Rhea americana [PDF]

open access: yes, 2018
Rhea americana (Linnaeus, 1758) Records. Table 3. The Greater Rhea is the largest flightless bird species in Brazil (Fig. 11), and is easily recognized by its size (TL ca 1.5 m), long neck and legs, no tail, and brown-gray plumage. The males have a black breast and neck.
Fischer, Wagner   +2 more
openaire   +3 more sources

A new coccidian, Isospora rheae sp. nov. (Apicomplexa, Eimeriidae), from Rhea americana (Aves, Rheidae) from South America [PDF]

open access: yesInternational Journal for Parasitology: Parasites and Wildlife, 2014
A new species of coccidian (Protozoa: Apicomplexa: Eimeriidae) obtained from rheas, Rhea americana, is reported in Brazil. Oocysts of Isospora rheae sp. nov. are spherical to subspheroidal, measuring 22.6 × 21.0 µm, and have a double and smooth wall that
Samira S.M. Gallo   +3 more
doaj   +2 more sources

Morphological aspects of epididymal microscopy and rete testis in greater Rhea Americana [PDF]

open access: yesCiência Rural, 2021
: The purpose of this research was to study the histology and describe the microscopy findings of the epididymis epithelium of greater Rhea americana at three time periods: November 2005 (n=14), December 2006 (n= 20), and May 2007 (n= 20), to observe and
Breno Nahuel Freneau   +3 more
doaj   +3 more sources

Gonadal morphogenesis and sexual differentiation in rhea (Rhea americana)

open access: yesReproductive Biology
The rhea (Rhea americana) is a docile and highly adaptable ratite with notable zootechnical potential for the production of meat, eggs, feathers, and leather. Beyond its economic relevance, captive breeding plays an important role in conservation. However, information on its embryonic and gonadal development remains limited-knowledge that is essential ...
Marilú Cristofoli   +6 more
openaire   +3 more sources

Rheological characterization of rhea (Rhea americana) eggs subjected to different storage periods

open access: yesCiência Animal Brasileira, 2022
Eggs are used as food industry ingredients due to their functional properties. Eggs from different bird species are used in industrial processing; therefore, rheological experiments were carried out at steady state to obtain the flow curves and also at ...
Renato Clini Cervi   +4 more
doaj   +2 more sources

Seasonal changes in plasma levels of sex hormones in the greater Rhea (Rhea americana), a South American Ratite with a complex mating system. [PDF]

open access: yesPLoS ONE, 2014
Seasonal rhythm in sex hormones has been extensively studied in birds, as well as its relationship with the type of mating system. The Greater Rhea (Rhea americana), a South American ratite species, reproduces seasonally and has a complex mating system ...
Diego J Valdez   +6 more
doaj   +2 more sources

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