Research Note: Morphology and immune function development of the jejunum and ileum in squab pigeons (Columba livia)

ABSTRACT: The study was aimed to evaluate the morphology and immune function development of the jejunum and ileum in squab pigeons (Columba livia), by determining the villus ultrastructure, secretory IgA, and cytokines. Eight squabs were randomly selected and sampled on the day of hatch (DOH), d 7 (...

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Auteurs principaux:	Qianqian Xu, Sasa Miao, Huafeng Jian, Xiaoting Zou, Xinyang Dong
Format:	article
Langue:	EN
Publié:	Elsevier 2022
Sujets:	squab pigeon intestine morphology scanning electron microscopy transmission electron microscopy Animal culture SF1-1100
Accès en ligne:	https://doaj.org/article/3563a785f39a45769b518446c0657f45
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spelling	oai:doaj.org-article:3563a785f39a45769b518446c0657f452021-11-16T04:09:04ZResearch Note: Morphology and immune function development of the jejunum and ileum in squab pigeons (Columba livia)0032-579110.1016/j.psj.2021.101529https://doaj.org/article/3563a785f39a45769b518446c0657f452022-01-01T00:00:00Zhttp://www.sciencedirect.com/science/article/pii/S0032579121005514https://doaj.org/toc/0032-5791ABSTRACT: The study was aimed to evaluate the morphology and immune function development of the jejunum and ileum in squab pigeons (Columba livia), by determining the villus ultrastructure, secretory IgA, and cytokines. Eight squabs were randomly selected and sampled on the day of hatch (DOH), d 7 (D 7), 14 (D 14), and 21 (D 21) post-hatch, respectively. The results showed that under transmission electron microscope, the enterocyte circumference in jejunum and ileum decreased with age. The tight junction involved in enterocyte circumference of jejunal villi plateaued from D 7, whereas that of ileal villi changed irregularly. The microvilli of jejunal and ileal villi was maximum at D 14. Under scanning electron microscope, the villus morphology of jejunum and ileum appeared finger-shaped at DOH. After D 7, the jejunal villi were still finger-shaped whereas the ileal villi were leaflike. The secretory IgA in jejunum was significantly increased at D 21. The TGF-β decreased linearly in jejunum and ileum. The anti-inflammatory cytokines increased linearly and proinflammatory cytokines decreased linearly in jejunum and ileum with age. In conclusion, the morphological changes of jejunal epithelium were concentrated at DOH–D 7 and ileal epithelium at DOH–D 14 mainly. The changes in mucus layer and immune-related factors of jejunum and ileum persisted for almost the entire period.Qianqian XuSasa MiaoHuafeng JianXiaoting ZouXinyang DongElsevierarticlesquab pigeonintestinemorphologyscanning electron microscopytransmission electron microscopyAnimal cultureSF1-1100ENPoultry Science, Vol 101, Iss 1, Pp 101529- (2022)
institution	DOAJ
collection	DOAJ
language	EN
topic	squab pigeon intestine morphology scanning electron microscopy transmission electron microscopy Animal culture SF1-1100
spellingShingle	squab pigeon intestine morphology scanning electron microscopy transmission electron microscopy Animal culture SF1-1100 Qianqian Xu Sasa Miao Huafeng Jian Xiaoting Zou Xinyang Dong Research Note: Morphology and immune function development of the jejunum and ileum in squab pigeons (Columba livia)
description	ABSTRACT: The study was aimed to evaluate the morphology and immune function development of the jejunum and ileum in squab pigeons (Columba livia), by determining the villus ultrastructure, secretory IgA, and cytokines. Eight squabs were randomly selected and sampled on the day of hatch (DOH), d 7 (D 7), 14 (D 14), and 21 (D 21) post-hatch, respectively. The results showed that under transmission electron microscope, the enterocyte circumference in jejunum and ileum decreased with age. The tight junction involved in enterocyte circumference of jejunal villi plateaued from D 7, whereas that of ileal villi changed irregularly. The microvilli of jejunal and ileal villi was maximum at D 14. Under scanning electron microscope, the villus morphology of jejunum and ileum appeared finger-shaped at DOH. After D 7, the jejunal villi were still finger-shaped whereas the ileal villi were leaflike. The secretory IgA in jejunum was significantly increased at D 21. The TGF-β decreased linearly in jejunum and ileum. The anti-inflammatory cytokines increased linearly and proinflammatory cytokines decreased linearly in jejunum and ileum with age. In conclusion, the morphological changes of jejunal epithelium were concentrated at DOH–D 7 and ileal epithelium at DOH–D 14 mainly. The changes in mucus layer and immune-related factors of jejunum and ileum persisted for almost the entire period.
format	article
author	Qianqian Xu Sasa Miao Huafeng Jian Xiaoting Zou Xinyang Dong
author_facet	Qianqian Xu Sasa Miao Huafeng Jian Xiaoting Zou Xinyang Dong
author_sort	Qianqian Xu
title	Research Note: Morphology and immune function development of the jejunum and ileum in squab pigeons (Columba livia)
title_short	Research Note: Morphology and immune function development of the jejunum and ileum in squab pigeons (Columba livia)
title_full	Research Note: Morphology and immune function development of the jejunum and ileum in squab pigeons (Columba livia)
title_fullStr	Research Note: Morphology and immune function development of the jejunum and ileum in squab pigeons (Columba livia)
title_full_unstemmed	Research Note: Morphology and immune function development of the jejunum and ileum in squab pigeons (Columba livia)
title_sort	research note: morphology and immune function development of the jejunum and ileum in squab pigeons (columba livia)
publisher	Elsevier
publishDate	2022
url	https://doaj.org/article/3563a785f39a45769b518446c0657f45
work_keys_str_mv	AT qianqianxu researchnotemorphologyandimmunefunctiondevelopmentofthejejunumandileuminsquabpigeonscolumbalivia AT sasamiao researchnotemorphologyandimmunefunctiondevelopmentofthejejunumandileuminsquabpigeonscolumbalivia AT huafengjian researchnotemorphologyandimmunefunctiondevelopmentofthejejunumandileuminsquabpigeonscolumbalivia AT xiaotingzou researchnotemorphologyandimmunefunctiondevelopmentofthejejunumandileuminsquabpigeonscolumbalivia AT xinyangdong researchnotemorphologyandimmunefunctiondevelopmentofthejejunumandileuminsquabpigeonscolumbalivia
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Research Note: Morphology and immune function development of the jejunum and ileum in squab pigeons (Columba livia)

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