Choana Morphogenesis in Developmental Stages of Muscovy Ducks

This study was performed by using Fourty nine Muscovy ducks to obtain enough information about the development of the choanal slit from 1 to 60 days old. The choanal slit formed nearly one-third of the total length of the palate in all studied ages; consisted of rostral narrow and caudal wide par...

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Autores principales:	Fatma Madkour, Kamal Abdalla, Salma Mohamed
Formato:	article
Lenguaje:	EN
Publicado:	South Valley University 2019
Materias:	choanal slit ducks sem papillae Agriculture S Veterinary medicine SF600-1100
Acceso en línea:	https://doaj.org/article/7551227cd27b411cb9e553f1e863dd0f
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spelling	oai:doaj.org-article:7551227cd27b411cb9e553f1e863dd0f2021-12-02T09:41:35ZChoana Morphogenesis in Developmental Stages of Muscovy Ducks10.21608/SVU.2019.11860.10092535-18262535-1877https://doaj.org/article/7551227cd27b411cb9e553f1e863dd0f2019-06-01T00:00:00Zhttps://svu.journals.ekb.eg/article_35739.htmlhttps://doaj.org/toc/2535-1826https://doaj.org/toc/2535-1877This study was performed by using Fourty nine Muscovy ducks to obtain enough information about the development of the choanal slit from 1 to 60 days old. The choanal slit formed nearly one-third of the total length of the palate in all studied ages; consisted of rostral narrow and caudal wide parts. The ratio of the length of the narrow part to the total length of the choanal slit was generally low at the young ducks and increased in the older ones, while that of the wide part reversing the ratio of the narrow part. By the SEM, 2 rows of papillae could be identified on the edges of the wide part of the choanal slit in all studied ages. The papillae of those rows were mostly cone-shaped with pointed apices, but some of them were dome-shaped with blunt apices could be demonstrated at 60 days old. Numerous openings of the intraepithelial glands were scattered within the epithelium of the choanal slit. At the edges of the choanal slit at one day old duck, the stratified squamous epithelium continued for a short distance before transforming into the ciliated respiratory epithelium. This epithelium was interrupted by intraepithelial mucous glands. These glands and their ducts surrounded by multiple lymphatic infiltration and nodules at 15- 60 days old. The lamina propria of the palate at the level of the choanal slit contained palatine salivary glands, these glands in older ages surrounded by numerous lymphatic nodules. Fatma Madkour Kamal AbdallaSalma MohamedSouth Valley Universityarticlechoanal slitduckssempapillaeAgricultureSVeterinary medicineSF600-1100ENSVU-International Journal of Veterinary Sciences, Vol 2, Iss 2, Pp 13-26 (2019)
institution	DOAJ
collection	DOAJ
language	EN
topic	choanal slit ducks sem papillae Agriculture S Veterinary medicine SF600-1100
spellingShingle	choanal slit ducks sem papillae Agriculture S Veterinary medicine SF600-1100 Fatma Madkour Kamal Abdalla Salma Mohamed Choana Morphogenesis in Developmental Stages of Muscovy Ducks
description	This study was performed by using Fourty nine Muscovy ducks to obtain enough information about the development of the choanal slit from 1 to 60 days old. The choanal slit formed nearly one-third of the total length of the palate in all studied ages; consisted of rostral narrow and caudal wide parts. The ratio of the length of the narrow part to the total length of the choanal slit was generally low at the young ducks and increased in the older ones, while that of the wide part reversing the ratio of the narrow part. By the SEM, 2 rows of papillae could be identified on the edges of the wide part of the choanal slit in all studied ages. The papillae of those rows were mostly cone-shaped with pointed apices, but some of them were dome-shaped with blunt apices could be demonstrated at 60 days old. Numerous openings of the intraepithelial glands were scattered within the epithelium of the choanal slit. At the edges of the choanal slit at one day old duck, the stratified squamous epithelium continued for a short distance before transforming into the ciliated respiratory epithelium. This epithelium was interrupted by intraepithelial mucous glands. These glands and their ducts surrounded by multiple lymphatic infiltration and nodules at 15- 60 days old. The lamina propria of the palate at the level of the choanal slit contained palatine salivary glands, these glands in older ages surrounded by numerous lymphatic nodules.
format	article
author	Fatma Madkour Kamal Abdalla Salma Mohamed
author_facet	Fatma Madkour Kamal Abdalla Salma Mohamed
author_sort	Fatma Madkour
title	Choana Morphogenesis in Developmental Stages of Muscovy Ducks
title_short	Choana Morphogenesis in Developmental Stages of Muscovy Ducks
title_full	Choana Morphogenesis in Developmental Stages of Muscovy Ducks
title_fullStr	Choana Morphogenesis in Developmental Stages of Muscovy Ducks
title_full_unstemmed	Choana Morphogenesis in Developmental Stages of Muscovy Ducks
title_sort	choana morphogenesis in developmental stages of muscovy ducks
publisher	South Valley University
publishDate	2019
url	https://doaj.org/article/7551227cd27b411cb9e553f1e863dd0f
work_keys_str_mv	AT fatmamadkour choanamorphogenesisindevelopmentalstagesofmuscovyducks AT kamalabdalla choanamorphogenesisindevelopmentalstagesofmuscovyducks AT salmamohamed choanamorphogenesisindevelopmentalstagesofmuscovyducks
_version_	1718398072626610176

Choana Morphogenesis in Developmental Stages of Muscovy Ducks

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