Results 11 to 20 of about 484 (167)

Evolution of bird sex chromosomes: a cytogenomic approach in Palaeognathae species. [PDF]

BMC Ecol Evol
Background Different patterns of sex chromosome differentiation are seen in Palaeognathae birds, a lineage that includes the ratites (Struthioniformes, Rheiformes, Apterygiformes, Casuariiformes, and the sister group Tinamiformes).
Setti PG, Deon GA, Zeni Dos Santos R, Goes CAG, Garnero ADV, Gunski RJ, de Oliveira EHC, Porto-Foresti F, de Freitas TRO, Silva FAO, Liehr T, Utsunomia R, Kretschmer R, de Bello Cioffi M.   +13 more
europepmc   +2 more sources

Immunostaining of P450c17, Aromatase and Oestrogen Receptor Alpha in Germ and Somatic Cells During Gonadal Development in Greater Rhea. [PDF]

Anat Histol Embryol
ABSTRACT The greater rhea (Rhea americana), the largest bird species in South America, has significant economic value due to its meat, eggs, leather, feathers and oil. However, its lack of external sexual dimorphism poses challenges for reproductive management and breeding programmes.
Cristofoli M, de Brito DCC, Alcobaça MMO, Donoso FMPM, Jorge FMG, Novaes MAS, Oliveira MF, de Assis Neto AC.   +7 more
europepmc   +2 more sources

Chemical composition and fatty acid profile of rhea (Rhea americana) meat.

Archivos latinoamericanos de nutricion, 2008
El objetivo de este trabajo fue determinar la composición aproximada y el perfil de ácidos grasos en la carne de la parte intramuscular IMF) interna de la pierna de ñandú (Rhea americana). Las aves fueron criadas en cautiverio, alimentadas con ración balanceada (Nutriavestruz Crescimento – Purina) y mantenidas en corral con pasto ad lib.
Romanelli, Pedro Fernando, Trabuco, Elizeu, Scriboni, Andreia Borges, Visentainer, Jesui Vergilio, de Souza, Nilson Evelazio   +4 more
openaire   +5 more sources

An integrative, peer-reviewed and open-source cooperative-breeding database (Co-BreeD). [PDF]

J Anim Ecol
Co‐BreeD is the first updatable and open‐source database dedicated to cooperative breeding. It enables continuous, non‐binary measurement of cooperative breeding, transforming how we study breeding systems across taxa. Further, by linking biological estimates to their exact sampling location and period, it allows for unprecedented accuracy in the ...
Ben Mocha Y, Woith M, Scemama de Gialluly S, Bruscagnin L, Kestel N, Markman S, Drobniak SM, Baglione V, Boersma J, Cousseau L, Covas R, Braga de Miranda GH, Dey CJ, Doutrelant C, Gula R, Heinsohn R, Keynan O, Kingma SA, Leitão AV, Li J, Makuya L, Middleton KM, Pruett-Jones S, Radford AN, Restrepo C, Rubenstein DR, Schradin C, Theuerkauf J, Warrington MH, Williams DA, Woxvold IA, Griesser M.   +31 more
europepmc   +2 more sources

Spatial Insurance of Distinct Ecological Functions. [PDF]

Ecol Lett
We present a new trait‐based framework to quantify spatial functional insurance of distinct ecological functions amongst ecological communities. We identify communities that disproportionately insure (functional sources) or depend on (functional sinks) neighbour communities.
Mouquet N, Mahaut L, Thuiller W, Auber A, Casajus N, Enquist BJ, Gaüzère P, Loiseau N, Mouillot D, Munoz F, Villéger S, Violle C.   +11 more
europepmc   +2 more sources

Hypophosphatemic Rickets in Rheas (Rhea americana) [PDF]

Veterinary Pathology, 1995
Rickets was diagnosed in 11 rheas from four flocks in Ohio. At necropsy, birds had pliable bones with prominent valgus or varus deformation of the femoral bone and/or the tibiotarsal bone, marked thickening of the metaphyseal plates, and frequent fractures.
A, Gröne, D E, Swayne, L A, Nagode
openaire   +2 more sources

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

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   +1 more source

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

Bioscience 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, Radan Elvis Matias de Oliveira, Ferdinando Vinícius Fernandes Bezerra, Felipe Venceslau Câmara, Gleidson Benevides de Oliveira, Carlos Eduardo Bezerra de Moura, Moacir Franco de Oliveira   +6 more
doaj   +3 more sources

Gastrointestinal parasites in greater rheas (Rhea americana) and lesser rheas (Rhea pennata) from Argentina [PDF]

Veterinary Parasitology, 2013
Few data exist on the parasites of ratites, especially from regions within their natural range. It is only recently that extensive studies on the parasites of ostriches (Struthio camelus) have been published, mainly from European countries where commercial farming has expanded.
Martinez Diaz, Rafael A., Martella, Monica Beatriz, Navarro, Joaquin Luis, Ponce Gordo, Francisco   +3 more
openaire   +3 more sources

Gross morphology of rhea oropharyngeal cavity

Pesquisa Veterinária Brasileira, 2012
The rhea (Rhea americana americana) is an american bird belonging to Ratite's family. Studies related to its morphology are still scarce. This study aims to describe the macroscopic structures of the oropharyngeal cavity.
Marcio N. Rodrigues, Catarina N. Tivane, Rafael C. Carvalho, Gleidson B. Oliveira, Roberto S.B. Silva, Carlos E. Ambrosio, Moacir F. Oliveira, Maria A. Miglino   +7 more
doaj   +1 more source