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Title: Histomorphometric and immunohistochemical study of the goat omasum during prenatal development
Issue Date: 2013
Publisher: F. Hernández y Juan F. Madrid. Universidad de Murcia: Departamento de Biología Celular e Histología
Citation: Histology and Histopathology, vol. 28, nº 6, (2013)
ISSN: 1699-5848
Related subjects: CDU::6 - Ciencias aplicadas::61 - Medicina
Keywords: Forestomach
Abstract: This work studies the morphological changes taking place in the goat omasum during prenatal development, using scanning electron microscope, light microscopy and immunohistochemical analysis. A total of 140 goat embryos and fetuses were used, from the first stages of prenatal life until birth. Differentiation of the omasum as a separate compartment of the primitive gastric tube was observed at 35 days of prenatal life ([crown-rump length (CRL)] 3 cm, 23% gestation). By 38 days (CRL 4.3 cm, 25% gestation) the omasal wall comprised three layers: an internal epithelial layer, a middle layer of pluripotential blastemic tissue and an external layer or serosa. Omasal laminae appeared in the following order: primary at 38 days (CRL 4.3 cm, 25% gestation), secondary at 50 days (CRL 7.7 cm, 33% gestation), tertiary at 59 days (CRL 12 cm, 39% gestation) and quaternary at 64 days (CRL 13.5 cm, 43% gestation). Neuroendocrine cells were detected by synaptophysin (SYP) at 52 days (CRL 8 cm, 35% gestation), while glial cell markers (glial fibrillary acidic protein - GFAP, and vimentin-VIM) were observed at 64 days (CRL 13.5 cm, 43% gestation) and 38 days (CRL 4.3 cm, 25% gestation), respectively. Sympathetic and parasympathetic nerve fibers and nerve bodies were detected via neuropeptide Y (NPY) and vasoactive intestinal polypeptide (VIP) at 95 days (CRL 20 cm, 63% gestation). In conclusion, prenatal development of the omasum - like that of the rumen - appears to take place somewhat earlier in goats than in sheep or cattle, but at a similar stage to that reported in deer.
Primary author: García, A.
Masot, Javier
Franco, Antonio
Gazquez, Antonio
Redondo, E.
Document type: info:eu-repo/semantics/article
Number of pages / Extensions: 12
Rights: info:eu-repo/semantics/openAccess
Appears in Collections:Vol.28, nº 6 (2013)

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