Document Detail


Near-infrared diffuse reflectance spectroscopy for the analysis of poultry manures.
MedLine Citation:
PMID:  11368576     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
The objective was to evaluate near-infrared diffuse reflectance spectroscopy (NIRS) for determining the composition of poultry manures. Poultry manure samples were obtained from a commercial testing laboratory along with conventionally determined analyte values for total N, NH(4)(+)-N, organic N (computed as total minus NH(4)(+)-N), minerals, and moisture. Samples were blended in a food blender and scanned in polyethylene bags on a FOSS-NIRSystems model 6500 scanning monochromator. Initial results indicated that changes had occurred in NH(4)(+)-N contents from the time of analysis, and samples were reanalyzed for NH(4)(+)-N. Using the new analyses, NIRS was able to accurately determine NH(4)(+)-N, organic N, total N, and moisture in 128 poultry manures. Results were more accurate when determinations were made on an "as is" as opposed to dry matter basis. Finally, results indicated that NIRS was not suitable for the determination of minerals (P, K, Ca, etc.) in poultry manures.
Authors:
J B Reeves
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Journal of agricultural and food chemistry     Volume:  49     ISSN:  0021-8561     ISO Abbreviation:  J. Agric. Food Chem.     Publication Date:  2001 May 
Date Detail:
Created Date:  2001-05-22     Completed Date:  2001-12-05     Revised Date:  2003-11-14    
Medline Journal Info:
Nlm Unique ID:  0374755     Medline TA:  J Agric Food Chem     Country:  United States    
Other Details:
Languages:  eng     Pagination:  2193-7     Citation Subset:  IM    
Affiliation:
Animal Manure and Byproducts Laboratory, Animal and Natural Resources Institute, Agricultural Research Service, U.S. Department of Agriculture, Beltsville, Maryland 20705, USA. jreeves@anri.barc.usda.gov
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MeSH Terms
Descriptor/Qualifier:
Ammonia / analysis
Animals
Chickens
Feces / chemistry*
Minerals / analysis
Nitrogen / analysis*
Spectroscopy, Near-Infrared / methods*
Chemical
Reg. No./Substance:
0/Minerals; 7664-41-7/Ammonia; 7727-37-9/Nitrogen

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


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