Results 31 to 40 of about 944 (204)

High-resolution coproecology: using coprolites to reconstruct the habits and habitats of New Zealand's extinct upland Moa (Megalapteryx didinus) [PDF]

, 2012
Knowledge about the diet and ecology of extinct herbivores has important implications for understanding the evolution of plant defence structures, establishing the influences of herbivory on past plant community structure and composition, and identifying
Wilmshurst, J., Cooper, Alan, Wood, Jamie, Nicolas J Rawlence, Worthy, Trevor, Steven J Wagstaff, Jamie R. Wood (154479), Wagstaff, Steven J., Janet M Wilmshurst, Alan Cooper (9827), Cooper Alan, Wilmshurst Janet M., Wood Jamie R., Rawlence, Nicolas J, Wagstaff, S., Trevor H. Worthy (147141), Jamie R Wood, Worthy, T., Wood, Jamie R., Nicolas J. Rawlence (154484), Rawlence, Nicolas J., Alan Cooper, Rawlence, N., Worthy, Trevor H., Cooper, A., Trevor H Worthy, Janet M. Wilmshurst (154481), Steven J. Wagstaff (154482), Worthy Trevor H., Wagstaff, Steven J, Wagstaff Steven J., Wood, J., Wilmshurst, Janet M., Wilmshurst, Janet M, Rawlence Nicolas J.   +34 more
core   +1 more source

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

Ciência 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, Cláudio Wageck Canal, Verônica Schmidt   +2 more
doaj   +1 more source

Evolution: Flight of the Ratites [PDF]

Current Biology, 2017
The flightless ratite birds are scattered all across the Southern hemisphere, on landmasses that have long been separated from each other. But how did they get there? They flew in from the North.
openaire   +2 more sources

Causes of mortality among ostriches (Struthio camelus) and emus (Dromaius novaehollandiae) raised commerically in saudi arabia [PDF]

Assiut Veterinary Medical Journal, 2008
The incidence and causes of mortality in a mixed ratite farm which produced ostriches and emus were recorded over four production seasons (1998 - 2001). The mean annual mortality rates for ostrich and emu chicks during the rearing phase were 29.1% and 21.
H. AGAB, A.S. MOHAMED, B. ABBAS
doaj   +1 more source

Morphology of the tongue of the emu (Dromaius novaehollandiae). I. Gross anatomical features and topography

Onderstepoort Journal of Veterinary Research, 2009
Despite numerous papers addressing the topic, the gross morphology of the ratite tongue and more specifically that of the emu, has been superficially or poorly described.
M.R. Crole, J.T. Soley
doaj   +1 more source

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   +1 more source

FACTORS AFFECTING PRODUCTION EFFICIENCY IN A NEW ALTERNATIVE ENTERPRISE: THE CASE OF THE RATITE INDUSTRY [PDF]

, 2017
Technical efficiency measures are calculated for ratite producers using data envelopment analysis. Regression analysis is then used to determine producer characteristics that are likely to lead to higher technical efficiencies.
Taylor, Gary, Schupp, Alvin R., Gillespie, Jeffrey M.   +2 more
core   +1 more source

DMRT1 in a ratite bird: Evidence for a role in sex determination and discovery of a putative regulatory element

, 2021
Unlike mammals, birds have a ZZ male/ZW female sex-determining system. In most birds, the Z is large and gene rich, whereas the W is small and heterochromatic, but the ancient group of ratite birds are characterized by sex chromosomes that are virtually ...
Zarkower, D, Shetty, S, Kirby, Patrick J, Graves, Jennifer   +3 more
core   +1 more source

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

International 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, Nicole B. Ederli, Bruno P. Berto, Francisco C.R. de Oliveira   +3 more
doaj   +1 more source

The development of ratite production through continued research

, 2012
This paper summarises research on farmed ratites and their industries over the past 100 years. Commercial ratite products include meat, skins, feathers and oil.
Cloete S.W.P., Bonato M., Brand T.S., Brand Z., Malecki I.A., Hoffman L., Engelbrecht A., Glatz P.C.   +7 more
core   +2 more sources