Evolution of bird sex chromosomes: a cytogenomic approach in Palaeognathae species [PDF]
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 +13 more
doaj +3 more sources
Morphology of the extraocular muscles (m. bulbi) in the pre-hatchling and post-hatchling african black ostriches (struthio camelus domesticus L., 1758) (Aves: Struthioniformes) [PDF]
The aim of the study was to describe the morphology and the development of the extraocular muscles (EOMs) in the pre-hatchling and post-hatchling African black ostrich. The study involved 50 birds aged between 28 days and 3 years. The EOMs were analyzed morphologically with respect to the location and length of the straight and oblique muscles and the ...
Klećkowska-Nawrot, Joanna +3 more
openaire +4 more sources
Morphological study of the upper, lower and third eyelids in the African black ostrich (Struthio camelus camelusL., 1758) (Aves: Struthioniformes) during the embryonic and postnatal period [PDF]
AbstractThe upper, lower and third eyelids are accessory organs of the eye. The aim of this study was to describe the development of the upper, lower and third eyelids in ostriches in the embryonic and postnatal period and to characterise the conjunctiva-associated lymphoid tissue (CALT) in the eyelids.
J. Klećkowska-Nawrot +2 more
openaire +2 more sources
Esternon de aves Chilenas: struthioniformes a piciformes
El esternón es una estructura de peculiar desarrollo en las aves y presenta una combinación de caracteres que puede variar de acuerdo al modo de vida de cada especie; este trabajo describe y analiza el esternón de 25 órdenes, 47 familias y 112 géneros de aves que habitan en Chile.
Marina L. Lemus, Juan C. Torres-Mura
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Domestication and the comparative embryology of birds
The sequence of developmental events in the domestic chicken is highly congruent with that of the zebra finch. Abstract Studies of domesticated animals have greatly contributed to our understanding of avian embryology. Foundational questions in developmental biology were motivated by Aristotle's observations of chicken embryos. By the 19th century, the
Gerardo A. Cordero, Ingmar Werneburg
wiley +2 more sources
Wildlife Pathogens and Zoonotic Disease Risk Assessment in Vietnam: A Wildlife Trade Hotspot [PDF]
Vietnam is a wildlife trade hotspot presenting multiple high‐risk interfaces for pathogen spillover from wildlife to humans. However, the zoonotic disease risk remains poorly characterized in the country and needs to be assessed to better inform policy dialog and legislative reforms.
Alice Latinne +2 more
wiley +2 more sources
Palaeognathae: Apterygiformes, Casuariiformes, Rheiformes, Struthioniformes; Tinamiformes
The infraclass Palaeognathae includes the flightless ratites (ostrich, emu, rhea, cassowary, kiwi) and the tinamous, a group of related, flighted birds. This chapter focuses on unique anatomy and important non-infectious and infectious diseases of these groups of birds.
Dale A. Smith
openaire +2 more sources
Birds kept in zoological institutions are highly exposed to gastrointestinal (GI) parasitism caused by coccidia and nematodes. The current research aimed to characterize the avian GI parasitic fauna in several zoological collections in Portugal and Spain.
João Lozano +12 more
doaj +2 more sources
The Importance of Olfaction for Mixed Paternity in Birds [PDF]
Olfaction can help individuals finding genetically compatible mates in many animals, while high levels of mixed paternity may reflect a reduced ability to evaluate a mate's profile against their own before mating. We tested this hypothesis by matching estimates of olfactory ability with mixed paternity for a broad range of bird species.
Charlotta Kvarnemo +3 more
wiley +2 more sources
Palaeognaths reveal evolutionary ancestry of the avian major histocompatibility complex class II [PDF]
Babik, Wiesław, Minias, Piotr
core +3 more sources

