Comparative Development of Embryonic Age by Organogenesis in Domestic Dogs and Cats

Author(s)

Pieri, N. C. G. ^[1] ; Souza, A. F. ^[1] ; Casals, J. B. ^[1] ; Roballo, K. C. S. ^[2] ; Ambrosio, C. E. ^{[1, 2]} ; Martins, D. S. ^{[1, 2]}

Affiliation

^[1] Univ Sao Paulo, Dept Surg, Fac Vet Med & Anim Sci, BR-13635900 Sao Paulo, SP - Brazil

^[2] Univ Sao Paulo, Fac Anim Sci & Food Engn, Dept Vet Med, Pirassununga, SP - Brazil

• Document type: Journal article
• Source: REPRODUCTION IN DOMESTIC ANIMALS; v. 50, n. 4, p. 625-631, AUG 2015.
• Web of Science Citations: 13

Abstract

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. (AU)

• FAPESP's process: 12/05609-0 - Xenogeneic-derived spermatogenesis after canine stem cell transplantation in murine testis
• Grantee: Naira Caroline Godoy Pieri
• Support Opportunities: Scholarships in Brazil - Doctorate