A model of cadmium accumulation in the liver and kidney of sheep derived from soil and dietary characteristics

Phillips, Cjc and Tudoreanu, L (2011) A model of cadmium accumulation in the liver and kidney of sheep derived from soil and dietary characteristics. Journal of the Science of Food and Agriculture, 91 2: 370-376. doi:10.1002/jsfa.4195


Author Phillips, Cjc
Tudoreanu, L
Title A model of cadmium accumulation in the liver and kidney of sheep derived from soil and dietary characteristics
Journal name Journal of the Science of Food and Agriculture   Check publisher's open access policy
ISSN 0022-5142
1097-0010
Publication date 2011-01-30
Year available 2010
Sub-type Article (original research)
DOI 10.1002/jsfa.4195
Volume 91
Issue 2
Start page 370
End page 376
Total pages 7
Place of publication London, United Kingdom
Publisher John Wiley & Sons
Collection year 2011
Language eng
Formatted abstract
Background: Cadmium accumulates in sheep tissues and often approaches the legal limit for human consumption in kidneys. Previous models have focused on transfer from plants to sheep but have restricted value due to seasonal and species variation in plant cadmium concentration. We created a model for the accumulation of cadmium in sheep using empirical relationships previously derived for accumulation in sheep kidney and liver from feeds, together with equations for accumulation in feeds derived from soil characteristics. The combined model relates soil cadmium to liver and kidney concentrations.
Results: Sensitivity analysis demonstrated that the kidney accumulated cadmium faster than the liver and the greatest influence was the total cadmium concentration in the soil. The weight gain of the sheep and soil pH where the feed was grown had relatively minor influences on cadmium concentration in liver or kidney.
Conclusion: A combined model of soil, plant and sheep kidney and liver characteristics enables concentrations of cadmium in sheep liver and kidney to be predicted from soil characteristics. This will enable the long-term risks of specific sites to be predicted with greater accuracy than if just plant cadmium concentrations were utilized.
© 2010 Society of Chemical Industry.
Keyword Cadmium
Kidney
Liver
Model
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ
Additional Notes Article first published online: 27 OCT 2010.

Document type: Journal Article
Sub-type: Article (original research)
Collections: Official 2011 Collection
School of Veterinary Science Publications
 
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Created: Sun, 30 Jan 2011, 00:03:06 EST