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| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | Toledo Fonseca, Erika De Oliveira Silva, Fernanda Menezes Alcântara, Dayane Carvalho Cardoso, Rafael Luís Franciolli, André Sarmento, Carlos Alberto Palmeira Fratini, Paula José Piantino Ferreira, Antônio Miglino, Maria Angélica |
| Description | Country affiliation: Brazil Author Affiliation: Toledo Fonseca E ( Department of Surgery, Faculty of Veterinary Medicine and Animal Science, University of São Paulo, São Paulo, Brazil.) |
| Abstract | Birds occupy a prominent place in the Brazilian economy not only in the poultry industry but also as an animal model in many areas of scientific research. Thus the aim of this study was to provide a description of macro and microscopic aspects of the ectoderm-derived structures in chicken embryos / fetuses poultry (Gallus gallus domesticus) from 1st to 19th day of incubation. 40 fertilized eggs, from a strain of domestic chickens, with an incubation period of 2-19 days were subjected to macroscopic description, biometrics, light, and scanning microscopy. All changes observed during the development were described. The nervous system, skin and appendages and organs related to vision and hearing began to be identified, both macro and microscopically, from the second day of incubation. The vesicles from the primitive central nervous system-forebrain, midbrain, and hindbrain-were identified on the third day of incubation. On the sixth day of incubation, there was a clear vascularization of the skin. The optic vesicle was first observed fourth day of development and on the fifth day there was the beginning of the lens formation. Although embryonic development is influenced by animal line as well as external factors such as incubation temperature, this paper provides a chronological description for chicken (Gallus gallus domesticus) during its embryonic development. |
| File Format | HTM / HTML |
| ISSN | 1059910X |
| Issue Number | 12 |
| Volume Number | 76 |
| e-ISSN | 10970029 |
| Journal | Microscopy Research and Technique |
| Language | English |
| Publisher | Wiley-Liss |
| Publisher Date | 2013-12-01 |
| Publisher Place | United States |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Discipline Chemistry Techniques Ectoderm Embryology Embryonic Development Zygote Growth & Development Animals Chick Embryo Chickens Ear Eye Microscopy Microscopy, Electron, Scanning Nervous System Skin Journal Article |
| Content Type | Text |
| Resource Type | Article |
| Subject | Anatomy Histology Instrumentation Medical Laboratory Technology |
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