Morphology of lymphoid nodules and aggregates in the lungs of calves at different ages

The present study was conducted with the aim of defining the morphology of lymphoid nodules and lymphoid aggregates in calves at different ages. A total of 9 calves, divided into 3 age groups (3-, 6- and 8-month-old) consisting of 3 calves in each group, was used in this study. Samples of the lungs...

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Main Authors: Saw, Po Po, Abu Bakar @ Zakaria, Md Zuki, Saad, Mohd Zamri
Format: Article
Language:English
Published: Veterinary Association Malaysia 2009
Online Access:http://psasir.upm.edu.my/id/eprint/15737/1/Morphology%20of%20lymphoid%20nodules%20and%20aggregates%20in%20the%20lungs%20of%20calves%20at%20different%20ages.pdf
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author Saw, Po Po
Abu Bakar @ Zakaria, Md Zuki
Saad, Mohd Zamri
author_facet Saw, Po Po
Abu Bakar @ Zakaria, Md Zuki
Saad, Mohd Zamri
author_sort Saw, Po Po
collection UPM
description The present study was conducted with the aim of defining the morphology of lymphoid nodules and lymphoid aggregates in calves at different ages. A total of 9 calves, divided into 3 age groups (3-, 6- and 8-month-old) consisting of 3 calves in each group, was used in this study. Samples of the lungs were taken systematically and processed for histological examinations. The tissues were sectioned at 4, μm, stained with Haematoxylin and Eosin and examined under light microscope. The occurrence and structure of lymphoid nodules and lymphoid aggregates varied between the age groups. The number of lymphoid nodules and lymphoid aggregates in the lung of calves increased with age. The number of lymphoid nodules and lymphoid aggregates in the 8-month-old calves was significantly higher (P<0.05) than in the 3- and 6-month-old calves. Similarly, the size of lymphoid nodule and lymphoid aggregates increased with age and was significantly higher (P<0.05) in the 8-month-old calves as compared to the 3- and 6- month-old calves. The number of intraepithelial lymphocytes (IELs) within the lymphoid nodules and lymphoid aggregates was significantly higher (P<0.05) in the 8-month-old calves compared to the 3- and 6-month-old calves.
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spelling upm.eprints-157372016-11-18T03:47:05Z http://psasir.upm.edu.my/id/eprint/15737/ Morphology of lymphoid nodules and aggregates in the lungs of calves at different ages Saw, Po Po Abu Bakar @ Zakaria, Md Zuki Saad, Mohd Zamri The present study was conducted with the aim of defining the morphology of lymphoid nodules and lymphoid aggregates in calves at different ages. A total of 9 calves, divided into 3 age groups (3-, 6- and 8-month-old) consisting of 3 calves in each group, was used in this study. Samples of the lungs were taken systematically and processed for histological examinations. The tissues were sectioned at 4, μm, stained with Haematoxylin and Eosin and examined under light microscope. The occurrence and structure of lymphoid nodules and lymphoid aggregates varied between the age groups. The number of lymphoid nodules and lymphoid aggregates in the lung of calves increased with age. The number of lymphoid nodules and lymphoid aggregates in the 8-month-old calves was significantly higher (P<0.05) than in the 3- and 6-month-old calves. Similarly, the size of lymphoid nodule and lymphoid aggregates increased with age and was significantly higher (P<0.05) in the 8-month-old calves as compared to the 3- and 6- month-old calves. The number of intraepithelial lymphocytes (IELs) within the lymphoid nodules and lymphoid aggregates was significantly higher (P<0.05) in the 8-month-old calves compared to the 3- and 6-month-old calves. Veterinary Association Malaysia 2009 Article PeerReviewed application/pdf en http://psasir.upm.edu.my/id/eprint/15737/1/Morphology%20of%20lymphoid%20nodules%20and%20aggregates%20in%20the%20lungs%20of%20calves%20at%20different%20ages.pdf Saw, Po Po and Abu Bakar @ Zakaria, Md Zuki and Saad, Mohd Zamri (2009) Morphology of lymphoid nodules and aggregates in the lungs of calves at different ages. Jurnal Veterinar Malaysia, 21 (2). pp. 9-15. ISSN 9128-2506
spellingShingle Saw, Po Po
Abu Bakar @ Zakaria, Md Zuki
Saad, Mohd Zamri
Morphology of lymphoid nodules and aggregates in the lungs of calves at different ages
title Morphology of lymphoid nodules and aggregates in the lungs of calves at different ages
title_full Morphology of lymphoid nodules and aggregates in the lungs of calves at different ages
title_fullStr Morphology of lymphoid nodules and aggregates in the lungs of calves at different ages
title_full_unstemmed Morphology of lymphoid nodules and aggregates in the lungs of calves at different ages
title_short Morphology of lymphoid nodules and aggregates in the lungs of calves at different ages
title_sort morphology of lymphoid nodules and aggregates in the lungs of calves at different ages
url http://psasir.upm.edu.my/id/eprint/15737/1/Morphology%20of%20lymphoid%20nodules%20and%20aggregates%20in%20the%20lungs%20of%20calves%20at%20different%20ages.pdf
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AT abubakarzakariamdzuki morphologyoflymphoidnodulesandaggregatesinthelungsofcalvesatdifferentages
AT saadmohdzamri morphologyoflymphoidnodulesandaggregatesinthelungsofcalvesatdifferentages