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Comparative Development of Embryonic Age by Organogenesis in Domestic Dogs and Cats
Author(s) -
Pieri NCG,
Souza AF,
Casals JB,
Roballo KCS,
Ambrósio CE,
Martins DS
Publication year - 2015
Publication title -
reproduction in domestic animals
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.546
H-Index - 66
eISSN - 1439-0531
pISSN - 0936-6768
DOI - 10.1111/rda.12539
Subject(s) - embryogenesis , embryonic stem cell , organogenesis , biology , breed , embryo , domestic animal , pregnancy , evolutionary biology , zoology , anatomy , microbiology and biotechnology , genetics , gene
Contents The precise determination of the embryonic chronology is very important in reproductive biotechnologies, especially in estimating embryonic age. Thus, there is a need for greater knowledge and standardization for determining the chronology of embryonic development and functional morphology. We describe aspects of embryonic development in two domestic carnivores to add knowledge about organ peculiarities and for application in veterinary practice, in prenatal development and in the biotechnology fields. We found that the development of differential characteristics of embryonic organs occurs in the first trimester of pregnancy for both species. Thus, using the combination of the crown‐rump length, macroscopic analysis and optical microscopy, it is possible to predict gestational age more precisely in animals that lack a defined breed and establish an embryonic pattern.