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Life cycle assessment of arsenic from poultry feed to agricultural crops Open Access


Other title
Arsenic fractionation in soils amended with poultry litter
Arsenic in poultry litter
Arsenic uptake by the plants from poultry litter amended soils
Type of item
Degree grantor
University of Alberta
Author or creator
Gupta, Sanjay Kumar
Supervisor and department
Siddique, Tariq (Renewable Resources)
Examining committee member and department
Alessi, Daniel (Earth and Atmospheric Sciences)
Kachanosky, Gary (Renewable Resources)
Department of Renewable Resources
Land Reclamation & Remediation
Date accepted
Graduation date
Master of Science
Degree level
A series of experiments were conducted to study the fate and distribution of arsenic (As) when it passes through various components of biosphere. Roxarsone, an As containing compound is added to poultry feed for enhanced feed utilization. Mass balance calculations revealed that chickens excreted ~80% of ingested As into poultry manure. A high dose of As-containing poultry litter was applied to silt-loam and loam soils to study As distribution. Sequential extraction analyses revealed that ~60% of applied As remained in highly labile water soluble fraction. Mobility of As was found more in loam soil. To study its translocation from soil to plants, barley and canola plants were grown in litter-amended soils in a growth chamber. More As was taken up from loam soil, and by canola than barley. This study suggested that As moved from poultry feed to crop plants, accumulated in roots and shoots but rarely concentrated in grains.
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