Document Detail


Effect of animal feed enriched with Se and clays on Hg bioaccumulation in chickens: in vivo experimental study.
MedLine Citation:
PMID:  15769145     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
An in vivo experiment was conducted to evaluate the effects of sodium selenite, sepiolite, and bentonite on inorganic mercury (Hg) and methylmercury (MeHg) bioaccumulation. For this purpose 160 chickens were fed under different controlled conditions. Chickens were exposed to Hg(II) and MeHg added to feed with or without selenium or clays supplementation. No significant differences were observed in the voluntary intake and feed/gain conversion rates. The target organs of Hg(II) and MeHg in chickens were the liver and kidney, respectively, but the greatest body store was the muscle in both cases. A higher bioaccumulation for MeHg than for Hg(II) was observed. The results showed that addition of sodium selenite, sepiolite, or bentonite induced a decrease of up to 60-100% in the inorganic mercury bioabsorption. Bentonite addition to a MeHg-containing diet also caused a decrease in organic mercury bioaccumulation (29-67%). On the other hand, inorganic selenium and sepiolite did not decrease MeHg accumulation.
Authors:
Ana I Cabañero; Yolanda Madrid; Carmen Cámara
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Journal of agricultural and food chemistry     Volume:  53     ISSN:  0021-8561     ISO Abbreviation:  J. Agric. Food Chem.     Publication Date:  2005 Mar 
Date Detail:
Created Date:  2005-03-16     Completed Date:  2005-04-28     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  0374755     Medline TA:  J Agric Food Chem     Country:  United States    
Other Details:
Languages:  eng     Pagination:  2125-32     Citation Subset:  IM    
Affiliation:
Departamento de Química Analítica, Facultad de Ciencias Químicas, Universidad Complutense de Madrid, Ciudad Universitaria s/n, 28040 Madrid, Spain.
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MeSH Terms
Descriptor/Qualifier:
Aluminum Silicates / administration & dosage*
Animal Feed / analysis*
Animals
Biological Availability
Chickens / growth & development,  metabolism*
Eating
Female
Food, Fortified / analysis*
Kidney / metabolism
Liver / metabolism
Mercury / pharmacokinetics*
Methylmercury Compounds / pharmacokinetics
Muscles / metabolism
Selenium / administration & dosage*
Chemical
Reg. No./Substance:
0/Aluminum Silicates; 0/Methylmercury Compounds; 1302-87-0/clay; 7439-97-6/Mercury; 7782-49-2/Selenium

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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