Results 91 to 100 of about 728 (153)

Husbandry of ratites and potential welfare issues: a review

, 2008
Since the mid-1980s, there has been worldwide farming of ratites, particularly with ostriches, emus and rheas for feathers, meat, skin and oil. Most of these ratites are produced commercially outside their native habitat.
Glatz, P., Z. H. Miao, P. C. Glatz, Miao, Z.   +3 more
core   +1 more source

Evolution of bird sex chromosomes: a cytogenomic approach in Palaeognathae species

BMC Ecology and Evolution
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).
Príncia Grejo Setti, Geize Aparecida Deon, Rodrigo Zeni dos Santos, Caio Augusto Gomes Goes, Analía Del Valle Garnero, Ricardo José Gunski, Edivaldo Herculano Corrêa de Oliveira, Fábio Porto-Foresti, Thales Renato Ochotorena de Freitas, Fábio Augusto Oliveira Silva, Thomas Liehr, Ricardo Utsunomia, Rafael Kretschmer, Marcelo de Bello Cioffi   +13 more
doaj   +1 more source

Testing gradual and speciational models of evolution in extant taxa: the example of ratites

, 2011
Ever since Eldredge and Gould proposed their model of punctuated equilibria, evolutionary biologists have debated how often this model is the best description of nature and how important it is compared to the more gradual models of evolution expected ...
Laurin, Michel, Gussekloo, S.W.S., Marjanovic, D., Legendre, Lucas, Marjanovic, David, Cubo, J., Laurin, M., Legendre, L., Cubo, Jorge, Gussekloo, Sander W.S.   +9 more
core   +1 more source

Evaluation of biting lice infestations (Struthiolipeurus rhea) in rheas (Rhea americana) kept in commercial breeding in the state of Piauí
Avaliação da infestação de piolhos mastigadores (Struthiolipeurus rheae) em emas (Rhea americana) mantidas em criadouro comercial no estado do Piauí

Semina: Ciências Biológicas e da Saúde, 2012
We evaluated the level of infestation of biting lice (Struthiolipeurus rheae) in emus (Rhea americana) kept in a breeding business in the state of Piaui. We used 16 emus, 12 adults, six of them were males and six females.
Aírton Mendes Conde Júnior, Rômulo José Vieira, Ivete Lopes de Mendonça, Sandovaldo Golçalves de Moura, José Adalmir Torres de Souza, Antônio Sousa Júnior, Waldilleny Ribeiro de Araújo Moura   +6 more
doaj  

Productions avicoles, bien-être et législation européenne

INRAE Productions Animales, 2004
En Europe, l’élaboration de la législation concernant le bien-être animal est le fait de deux organisations qui sont le Conseil de l’Europe et l’Union Européenne.
D. GUEMENE, J.M. FAURE
doaj   +1 more source

Anatomía económica de Rheidae Economic anatomy of Rheidae

Intersecciones en Antropología, 2006
En el siguiente trabajo se presentan los Índices de Rendimiento Económico para Rheidae (Clase: Aves), los cuales incluyen los cálculos del Índice de Utilidad General Modificado (Modified General Utility Index o MGUI) y de los índices que lo componen: el ...
Miguel A. Giardina
doaj  

Improving the quality of meat from ratites

, 2009
An overview of the ratite industries and use of these birds for meat, with emphasis on ostrich, introduces this topic. Growth traits, carcass yields, and meat composition of the ostrich, rhea, and emu as the major ratite species are discussed.
Mcmillin, K. W., K.W. McMillin, L.C. Hoffman, Hoffman, L. C.   +3 more
core   +1 more source

Technological and nutritional properties of ostrich, emu, and rhea meat quality

Journal of Veterinary Research, 2016
In recent years a growing demand for ratite meat, including ostrich, emu, and rhea has been observed all over the world. However, consumers as well as the meat industry still have limited and scattered knowledge about this type of meat, especially in the
Horbańczuk Olaf K., Wierzbicka Agnieszka   +1 more
doaj   +1 more source

Immobilization secondary to cell death of muscle precursors with a dual transcriptional signature contributes to the emu wing skeletal pattern

Nature Communications
Limb reduction has occurred multiple times in tetrapod history. Among ratites, wing reductions range from mild vestigialization to complete loss, with emus (Dromaius novaehollandiae) serving as a model for studying the genetic mechanisms behind limb ...
Eriko Tsuboi, Satomi F. Ono, Ingrid Rosenburg Cordeiro, Reiko Yu, Toru Kawanishi, Makoto Koizumi, Shuji Shigenobu, Guojun Sheng, Masataka Okabe, Mikiko Tanaka   +9 more
doaj   +1 more source

Heterochronic activation of TGF-β signaling drives the diversity of the avian sterna

Nature Communications
Adaptive evolution has shaped vertebrate skeletal morphology, supporting diverse locomotor modes and lifestyles. In volant birds (carinates), the sternum develops a ventral keel for the attachment of massive pectoral muscles essential for powered flight.
Seung June Kwon, Zhaonan Zou, Mizuki Honda, Shiro Egawa, Shinya Oki, Yuji Atsuta   +5 more
doaj   +1 more source