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Title:Salivary gland adaptation to dietary inclusion of hydrolysable tannins in boars
Authors:ID Mavri, Maša (Author)
ID Čandek-Potokar, Marjeta (Author)
ID Fazarinc, Gregor (Author)
ID Škrlep, Martin (Author)
ID Rutland, Catrin (Author)
ID Potočnik, Božidar (Author)
ID Batorek Lukač, Nina (Author)
ID Kubale, Valentina (Author)
Files:.pdf RAZ_Mavri_Masa_2022.pdf (4,43 MB)
MD5: A1F00E577021D470E79F8031BA6E35AF
 
URL https://www.mdpi.com/2076-2615/12/17/2171
 
Language:English
Work type:Article
Typology:1.01 - Original Scientific Article
Organization:FERI - Faculty of Electrical Engineering and Computer Science
Abstract:The ingestion of hydrolysable tannins as a potential nutrient to reduce boar odor in entire males results in the significant enlargement of parotid glands (parotidomegaly). The objective of this study was to characterize the effects of different levels of hydrolysable tannins in the diet of fattening boars (n = 24) on salivary gland morphology and proline-rich protein (PRP) expression at the histological level. Four treatment groups of pigs (n = 6 per group) were fed either a control (T0) or experimental diet, where the T0 diet was supplemented with 1% (T1), 2% (T2), or 3% (T3) of the hydrolysable tannin-rich extract Farmatan®. After slaughter, the parotid and mandibular glands of the experimental pigs were harvested and dissected for staining using Goldner’s Trichrome method, and immunohistochemical studies with antibodies against PRPs. Morphometric analysis was performed on microtome sections of both salivary glands, to measure the acinar area, the lobular area, the area of the secretory ductal cells, and the sizes of glandular cells and their nuclei. Histological assessment revealed that significant parotidomegaly was only present in the T3 group, based on the presence of larger glandular lobules, acinar areas, and their higher nucleus to cytoplasm ratio. The immunohistochemical method, supported by color intensity measurements, indicated significant increases in basic PRPs (PRB2) in the T3 and acidic PRPs (PRH1/2) in the T1 groups. Tannin upplementation did not affect the histo-morphological properties of the mandibular gland. This study confirms that pigs can adapt to a tannin-rich diet by making structural changes in their parotid salivary gland, indicating its higher functional activity.
Keywords:pigs, dietary supplements, tannins, parotid gland, mandibular gland, immunohistochemistry, histology, proline-rich proteins (PRP), swine
Publication status:Published
Publication version:Version of Record
Submitted for review:21.06.2022
Article acceptance date:19.08.2022
Publication date:24.08.2022
Publisher:MDPI AG
Year of publishing:2022
Number of pages:art. 2171, str. 1-15
Numbering:Vol. 12, št.. 17
PID:20.500.12556/DKUM-82625 New window
UDC:636.09:591
ISSN on article:2076-2615
COBISS.SI-ID:119067139 New window
DOI:10.3390/ani12172171 New window
Copyright:© 2022 by the authors
Publication date in DKUM:07.07.2023
Views:506
Downloads:157
Metadata:XML DC-XML DC-RDF
Categories:Misc.
:
MAVRI, Maša, ČANDEK-POTOKAR, Marjeta, FAZARINC, Gregor, ŠKRLEP, Martin, RUTLAND, Catrin, POTOČNIK, Božidar, BATOREK LUKAČ, Nina and KUBALE, Valentina, 2022, Salivary gland adaptation to dietary inclusion of hydrolysable tannins in boars. Animals [online]. 2022. Vol. 12, no. . 17, p. art. 2171,  1-15. [Accessed 23 April 2025]. DOI 10.3390/ani12172171. Retrieved from: https://dk.um.si/IzpisGradiva.php?lang=eng&id=82625
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Record is a part of a journal

Title:Animals
Shortened title:Animals
Publisher:MDPI
ISSN:2076-2615
COBISS.SI-ID:519120409 New window

Document is financed by a project

Funder:ARRS - Slovenian Research Agency
Project number:L4-5521
Name:Reja merjaščkov ali imunokastracija: raziskave ukrepov za zmanjšanje vonja po merjascu in novih problemov kakovosti proizvodov
Funder:ARRS - Slovenian Research Agency
Project number:P4-0133
Name:Trajnostno kmetijstvo
Funder:ARRS - Slovenian Research Agency
Project number:P4-0053
Name:Endokrini, imunski in encimski odzivi pri zdravih in bolnih živalih
Funder:ARRS - Slovenian Research Agency
Project number:P2-0041
Name:Računalniški sistemi, metodologije in inteligentne storitve

Licences

License:CC BY 4.0, Creative Commons Attribution 4.0 International
Link:http://creativecommons.org/licenses/by/4.0/
Description:This is the standard Creative Commons license that gives others maximum freedom to do what they want with the work as long as they credit the author.

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