Histomorphogenesis of the Pharyngeal roof in Muscovy Ducks (Cairina moschata)

This study aimed to investigate the morphological characteristics of the pharyngeal roof of the developmental stages of Muscovy ducks from 1 to 60 days old. The statistical analysis revealed that the ratio of the pharyngeal roof to the total length of the oropharynx decreased with advancement of t...

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Autores principales:	Fatma A. Madkour, Kamal E. H. Abdalla, Salma Ahmed Mohamed
Formato:	article
Lenguaje:	EN
Publicado:	South Valley University 2020
Materias:	duck pharyngeal roof sem spheniopterygoid salivary glands Agriculture S Veterinary medicine SF600-1100
Acceso en línea:	https://doaj.org/article/abc932874b99411b8c9b00a8a8b98206
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spelling	oai:doaj.org-article:abc932874b99411b8c9b00a8a8b982062021-12-02T13:58:37ZHistomorphogenesis of the Pharyngeal roof in Muscovy Ducks (Cairina moschata)10.21608/svu.2020.32880.10612535-18262535-1877https://doaj.org/article/abc932874b99411b8c9b00a8a8b982062020-09-01T00:00:00Zhttps://svu.journals.ekb.eg/article_114263.htmlhttps://doaj.org/toc/2535-1826https://doaj.org/toc/2535-1877This study aimed to investigate the morphological characteristics of the pharyngeal roof of the developmental stages of Muscovy ducks from 1 to 60 days old. The statistical analysis revealed that the ratio of the pharyngeal roof to the total length of the oropharynx decreased with advancement of the age, which was recorded 19.44 % at one-day age and 15.19% at 60 days age, as well as the infundibular cleft was increased in length approximately by one and half at 15 days and three folds at 60 days when compared with that of one-day-old. SEM in one-day-old showed that, the fine pharyngeal papillae on each side of the infundibular slit, whereas, two types of the papillae at 15 days but numerous different size and shape caudally directed papillae at 60 days, some of them which were present at the pharyngoesophageal junction were in appearance of the nails of the carnivores. Numerous openings of the sphenopterygoid salivary glands were scattered between these papillae, which were observed in older ages (60 days old) by few numbers in the shallow groove at the caudal commissure of the infundibular slit. The edges of the infundibular cleft were smooth in all developmental stages except at 60 days old where few, fine and caudally directed papillae were recognized. Histologically, the sphenopterygoid salivary glands were compound tubulo-alveolar mucous secretory glands which was surrounded by lymphatic aggregation in older ages. In all examined ages, lymphatic accumulation could be observed in the infundibular cavity which was surrounding the intraepithelial mucous glands.Fatma A. MadkourKamal E. H. AbdallaSalma Ahmed MohamedSouth Valley Universityarticleduckpharyngeal roofsemspheniopterygoid salivary glandsAgricultureSVeterinary medicineSF600-1100ENSVU-International Journal of Veterinary Sciences, Vol 3, Iss 2, Pp 106-114 (2020)
institution	DOAJ
collection	DOAJ
language	EN
topic	duck pharyngeal roof sem spheniopterygoid salivary glands Agriculture S Veterinary medicine SF600-1100
spellingShingle	duck pharyngeal roof sem spheniopterygoid salivary glands Agriculture S Veterinary medicine SF600-1100 Fatma A. Madkour Kamal E. H. Abdalla Salma Ahmed Mohamed Histomorphogenesis of the Pharyngeal roof in Muscovy Ducks (Cairina moschata)
description	This study aimed to investigate the morphological characteristics of the pharyngeal roof of the developmental stages of Muscovy ducks from 1 to 60 days old. The statistical analysis revealed that the ratio of the pharyngeal roof to the total length of the oropharynx decreased with advancement of the age, which was recorded 19.44 % at one-day age and 15.19% at 60 days age, as well as the infundibular cleft was increased in length approximately by one and half at 15 days and three folds at 60 days when compared with that of one-day-old. SEM in one-day-old showed that, the fine pharyngeal papillae on each side of the infundibular slit, whereas, two types of the papillae at 15 days but numerous different size and shape caudally directed papillae at 60 days, some of them which were present at the pharyngoesophageal junction were in appearance of the nails of the carnivores. Numerous openings of the sphenopterygoid salivary glands were scattered between these papillae, which were observed in older ages (60 days old) by few numbers in the shallow groove at the caudal commissure of the infundibular slit. The edges of the infundibular cleft were smooth in all developmental stages except at 60 days old where few, fine and caudally directed papillae were recognized. Histologically, the sphenopterygoid salivary glands were compound tubulo-alveolar mucous secretory glands which was surrounded by lymphatic aggregation in older ages. In all examined ages, lymphatic accumulation could be observed in the infundibular cavity which was surrounding the intraepithelial mucous glands.
format	article
author	Fatma A. Madkour Kamal E. H. Abdalla Salma Ahmed Mohamed
author_facet	Fatma A. Madkour Kamal E. H. Abdalla Salma Ahmed Mohamed
author_sort	Fatma A. Madkour
title	Histomorphogenesis of the Pharyngeal roof in Muscovy Ducks (Cairina moschata)
title_short	Histomorphogenesis of the Pharyngeal roof in Muscovy Ducks (Cairina moschata)
title_full	Histomorphogenesis of the Pharyngeal roof in Muscovy Ducks (Cairina moschata)
title_fullStr	Histomorphogenesis of the Pharyngeal roof in Muscovy Ducks (Cairina moschata)
title_full_unstemmed	Histomorphogenesis of the Pharyngeal roof in Muscovy Ducks (Cairina moschata)
title_sort	histomorphogenesis of the pharyngeal roof in muscovy ducks (cairina moschata)
publisher	South Valley University
publishDate	2020
url	https://doaj.org/article/abc932874b99411b8c9b00a8a8b98206
work_keys_str_mv	AT fatmaamadkour histomorphogenesisofthepharyngealroofinmuscovyduckscairinamoschata AT kamalehabdalla histomorphogenesisofthepharyngealroofinmuscovyduckscairinamoschata AT salmaahmedmohamed histomorphogenesisofthepharyngealroofinmuscovyduckscairinamoschata
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Histomorphogenesis of the Pharyngeal roof in Muscovy Ducks (Cairina moschata)

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