Infection of ratites with clade 2.3.4.4b HPAIV H5N1: potential implications for zoonotic risk [PDF]
Emerging Microbes and InfectionsWe 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 +15 more
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Brain shapes of large-bodied, flightless ratites (Aves: Palaeognathae) emerge through distinct developmental allometries [PDF]
Royal Society Open ScienceComparative neuroanatomical studies have long debated the role of development in the evolution of novel and disparate brain morphologies. Historically, these studies have emphasized whether evolutionary shifts along conserved or distinct developmental ...
Meghan R. Forcellati +2 more
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Egg Incubation Mechanics of Giant Birds [PDF]
Biology, 2021 Finite element analysis (FEA) was used to conduct mechanical analyses on eggshells of giant birds, and relate this to the evolution and reproductive behavior of avian species. We aim to (1) investigate mechanical characteristics of eggshell structures of
An Yen +4 more
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Assessment of Minimum Stable Areas for Young Ostriches According to Animal Welfare Legislation [PDF]
AnimalsRegarding the ongoing global development of commercial ostrich husbandry, it is necessary to establish science-based recommendations for the appropriate treatment and welfare of ostriches.
Sabrina Rückschloss +2 more
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Implementation of Mini-FLOTAC in Routine Diagnosis of Coccidia and Helminth Infections in Domestic and Exotic Birds [PDF]
Veterinary Sciences, 2021 Mini-FLOTAC (MF) has recently been proposed for the fecal quantification of gastrointestinal (GI) parasites in birds due to its higher sensitivity and precision in comparison with the McMaster method.
João Lozano +10 more
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Evolution of bird sex chromosomes: a cytogenomic approach in Palaeognathae species [PDF]
BMC Ecology and EvolutionBackground 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 +13 more
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Spontaneous Cloacal Prolapse in a Farm Ostrich (Struthio camelus): Case Management and Literature Review [PDF]
Veterinary Medicine and ScienceCaptive ratites, including the ostrich (Struthio camelus), are susceptible to various gastrointestinal conditions. However, spontaneous cloacal prolapse is a relatively less frequent diagnosis.
Mohammad Raguib Munif
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Immobilization secondary to cell death of muscle precursors with a dual transcriptional signature contributes to the emu wing skeletal pattern [PDF]
Nature CommunicationsLimb 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 +9 more
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Observational study on the breeding performance of emus (Dromaius novaehollandiae) in Brazil [PDF]
Arquivo Brasileiro de Medicina Veterinária e Zootecnia, 2020 The objective of this study was to describe emus’ breeding performance in Brazil at different ages, grouped in couples or colonies. The duration of the breeding season and the production of eggs per female housed were recorded, and the productivity and ...
J.C.P. Quintero +5 more
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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 +9 more
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