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  5. Trace mineral status and toxic metal accumulation in extensive and intensive pigs in NW Spain
 
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Trace mineral status and toxic metal accumulation in extensive and intensive pigs in NW Spain

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Author(s)
López-Alonso, Marta 
García-Vaquero, Marco 
Benedito, José Luis 
Castillo, Cristina 
Miranda, Marta 
Uri
http://hdl.handle.net/10197/11301
Date Issued
June 2012
Date Available
06T10:30:25Z March 2020
Abstract
The aim of the present study was to determine trace element status and toxic metal accumulation in extensive and intensive pigs in NW Spain. Soil, feed and animal tissues (liver, kidney and muscle from 112 pigs) were collected from extensive and intensive pig farms across NW Spain and analysed for metals by ICP-MS and ICP-OES. Our results indicate that animals from both extensive and intensive systems showed an adequate mineral status and that toxic metal residues were generally low, no sample exceeding the maximum admissible levels in meat and meat products established by the EU. Trace element concentrations were generally higher in the intensive pigs possibly reflecting mineral supplementation in the concentrate feed. The statistically significantly higher As, Hg and Pb residues as well as the better Fe and Ni status in extensive pigs could be related at least in part with soil ingestion when rooting. On the contrary, the higher Cd accumulation in the intensive pigs can be explained considering Cu and Zn supplementation in the concentrate feed. Our results also seem to indicate that toxic metal accumulation as well as trace element status in different tissues could be related to metabolic aspects (i.e. related to breed and growth rate) as well as certain management practices (i.e. physical exercise when grazing).
Other Sponsorship
Xunta de Galicia (Spain)
Type of Material
Journal Article
Publisher
Elsevier
Journal
Livestock Science
Volume
146
Issue
1
Start Page
47
End Page
53
Copyright (Published Version)
2012 Elsevier
Keywords
  • Agriculture

  • Trace elements

  • Toxic metals

  • Pig

  • Extensive

  • Intensive

  • Celta-pig

  • Copper

  • Cadmium

  • Feed

  • Breed

  • Liver

  • Zinc

DOI
10.1016/j.livsci.2012.02.019
Language
English
Status of Item
Peer reviewed
ISSN
1871-1413
This item is made available under a Creative Commons License
https://creativecommons.org/licenses/by-nc-nd/3.0/ie/
Owning collection
Agriculture and Food Science Research Collection
Scopus© citations
22
Acquisition Date
Feb 1, 2023
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740
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Feb 1, 2023
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Downloads
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