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Embryonic development of chicken (G allus Gallus Domesticus ) From 1st to 19th Day—ectodermal structures
Author(s) -
Toledo Fonseca Erika,
Menezes De Oliveira Silva Fernanda,
Alcântara Dayane,
Carvalho Cardoso Rafael,
Luís Franciolli André,
Alberto Palmeira Sarmento Carlos,
Fratini Paula,
José Piantino Ferreira Antônio,
Maria Angélica Miglino And
Publication year - 2013
Publication title -
microscopy research and technique
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.536
H-Index - 118
eISSN - 1097-0029
pISSN - 1059-910X
DOI - 10.1002/jemt.22288
Subject(s) - incubation , gallus gallus domesticus , forebrain , biology , embryogenesis , incubation period , acheta , anatomy , incubator , hindbrain , period (music) , embryo , central nervous system , andrology , microbiology and biotechnology , zoology , neuroscience , genetics , medicine , biochemistry , cricket , physics , acoustics
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. Microsc. Res. Tech. 76:1217–1225, 2013 . © 2013 Wiley Periodicals, Inc.