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Molecules 2011, 16(4), 2766-2784; doi:10.3390/molecules16042766

The Effect of Tannins on Mediterranean Ruminant Ingestive Behavior: The Role of the Oral Cavity

Instituto de Ciências Agrárias e Ambientais Mediterrânicas (ICAAM), Universidade de Évora, Évora, Portugal
Escola Superior de Hotelaria e Turismo do Estoril (ESHTE), Estoril, Portugal
Institute of Nutritional Science, University of Potsdam, Nuthetal (OT Bergholz-Rehbrücke), Germany
Departamento de Biologia, Universidade de Évora, Évora, Portugal
Departamento de Química, Universidade de Évora, Évora, Portugal
Centro de Neurociências e Biologia Celular (CNBC), Universidade de Coimbra, Coimbra, Portugal
Instituto de Investigação Científica Tropical (IICT) & CIISA – Centro Interdisciplinar de Investigação em Sanidade Animal. CVZ - Centro de Veterinária e Zootecnia, Faculdade de Medicina Veterinária, Lisboa, Portugal
Instituto de Tecnologia Química e Biológica/Universidade Nova de Lisboa (ITQB/UNL), Oeiras, Portugal
Departamento de Zootecnia, Universidade de Évora, Évora, Portugal
Author to whom correspondence should be addressed.
Received: 21 January 2011 / Revised: 10 March 2011 / Accepted: 22 March 2011 / Published: 25 March 2011
(This article belongs to the Special Issue Tannins)
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Sheep, cattle and goat are domestic ruminants of significant economic interest in the Mediterranean region. Although sharing the same pasture ranges, they ingest different plants and plant parts and, consequently different levels of tannins. This suggests an ability to detect and adapt ingestion according to animal physiological limits of tolerance for plant secondary metabolites. This review will detail the effects of dietary tannins on feeding behavior, and the role of the oral cavity in this process, with focus on such ruminant species. The role of salivary protein profile in tannin perception in the oral cavity, and as a defense mechanism, will be discussed.
Keywords: polyphenols; diet selection; ruminants; salivary proteins; tannin-protein interaction polyphenols; diet selection; ruminants; salivary proteins; tannin-protein interaction
This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

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MDPI and ACS Style

Lamy, E.; Rawel, H.; Schweigert, F.J.; Capela e Silva, F.; Ferreira, A.; Costa, A.R.; Antunes, C.; Almeida, A.M.; Coelho, A.V.; Sales-Baptista, E. The Effect of Tannins on Mediterranean Ruminant Ingestive Behavior: The Role of the Oral Cavity. Molecules 2011, 16, 2766-2784.

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