Document Detail


Effects of dietary Cd and Cu on feeding and growth rates of the landsnail Helix engaddensis.
MedLine Citation:
PMID:  11139178     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Effects of dietary cadmium and copper on feeding and growth rates of adult Helix engaddensis snails were studied for a 1-month period. The concentrations of cadmium were 0, 50, 100, 200, 400, and 800 microg Cd/g dry food, while those of copper were 0, 4, 20, 100, 500, and 2500 microg Cu/g dry food. Both metals inhibited feeding and growth rates significantly after 1 week and 3 weeks of exposure to Cd and Cu, respectively. Inhibition caused by Cd was found to be irreversible, which indicates toxicity, while that of Cu was reversible, indicating starvation because snails identified and refused to consume contaminated food. After 4 weeks of exposure, the NOEC of Cd was 50 microg/g and the LOEC was 100 microg/g, while those for Cu were 20 and 100 microg/g, respectively. EC50,75,90,100 (growth and feeding) values were calculated, and indicated that H. engaddensis snails are suitable for short-term toxicity bioassays.
Authors:
K M Swaileh; A Ezzughayyar
Related Documents :
20705508 - Dietary intake of lead and cadmium by children and adults - result calculated from diet...
18614278 - Evaluation of the distribution patterns of pb, cu and cd from mswi fly ash during therm...
8885318 - Use of a food composition database to estimate daily dietary intake of nutrient or trac...
16174368 - Major and trace elements in organically or conventionally produced milk.
12732328 - Exploitation of molecular profiling techniques for gm food safety assessment.
7495368 - Prospects and problems of intermittent irrigation for control of vector breeding in ric...
Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Ecotoxicology and environmental safety     Volume:  47     ISSN:  0147-6513     ISO Abbreviation:  Ecotoxicol. Environ. Saf.     Publication Date:  2000 Nov 
Date Detail:
Created Date:  2001-01-02     Completed Date:  2001-02-08     Revised Date:  2003-11-14    
Medline Journal Info:
Nlm Unique ID:  7805381     Medline TA:  Ecotoxicol Environ Saf     Country:  United States    
Other Details:
Languages:  eng     Pagination:  253-60     Citation Subset:  IM    
Affiliation:
Department of Biology and Biochemistry, Birzeit University, West Bank, Palestine. kswaileh@birzeit.edu
Export Citation:
APA/MLA Format     Download EndNote     Download BibTex
MeSH Terms
Descriptor/Qualifier:
Administration, Oral
Animals
Biological Assay / methods
Cadmium / adverse effects*
Copper / adverse effects*
Diet
Dose-Response Relationship, Drug
Environmental Monitoring / methods
Environmental Pollutants / adverse effects*
Feeding Behavior
Helix (Snails) / growth & development*
Chemical
Reg. No./Substance:
0/Environmental Pollutants; 7440-43-9/Cadmium; 7440-50-8/Copper

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


Previous Document:  Impact of lead stress and adaptation in Escherichia coli.
Next Document:  Effect of sublethal doses of cadmium on the phototactic behavior of Daphnia magna.