Document Detail

Bacterial counts associated with sawdust and recycled manure bedding treated with commercial conditioners.
MedLine Citation:
PMID:  10480094     Owner:  NLM     Status:  MEDLINE    
Bacteria counts associated with untreated organic bedding materials were compared with those of bedding treated with either an alkaline commercial bedding conditioner, acidic commercial bedding conditioner, or hydrated lime. Bedding materials were recycled manure and kiln-dried sawdust. The effects of bedding treatments on bacteria counts differed between bedding types. Each of the bedding treatments significantly reduced bacteria in recycled manure prior to use. The alkaline conditioner and hydrated lime effectively inhibited bacteria in recycled manure for 1 d. Bedding counts and teat swabs of cows housed on recycled manure treated with the alkaline conditioner were reduced on d 2. The use of the acid conditioner in recycled manure had little effect on bacteria in bedding. Sawdust differed from recycled manure in that bacteria in untreated sawdust prior to use were minimal, and populations increased rapidly during the first 2 d after use as bedding. The acid conditioner had a bacteriostatic effect in sawdust, evident by the reduction of bacteria on d 2. The alkaline conditioner and hydrated lime did not alter bacteria counts in sawdust compared with untreated sawdust. Antibacterial activity of each conditioner deteriorated between d 2 and d 6 in both beddings. The antibacterial activities of conditioners were related to the pH of bedding materials. The use of commercial bedding conditioners initially reduced bacterial counts; however, the antibacterial effects had diminished between d 2 and 6 after use in bedding.
J S Hogan; V L Bogacz; L M Thompson; S Romig; P S Schoenberger; W P Weiss; K L Smith
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't; Research Support, U.S. Gov't, Non-P.H.S.    
Journal Detail:
Title:  Journal of dairy science     Volume:  82     ISSN:  0022-0302     ISO Abbreviation:  J. Dairy Sci.     Publication Date:  1999 Aug 
Date Detail:
Created Date:  1999-10-04     Completed Date:  1999-10-04     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  2985126R     Medline TA:  J Dairy Sci     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  1690-5     Citation Subset:  IM    
Department of Animal Sciences, Ohio State University, Ohio Agricultural Research and Development Center, Wooster 44691, USA.
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MeSH Terms
Anti-Bacterial Agents
Calcium Compounds
Cattle / microbiology*
Colony Count, Microbial*
Enterobacteriaceae / isolation & purification
Gram-Negative Bacteria / isolation & purification
Housing, Animal*
Hydrogen-Ion Concentration
Klebsiella / isolation & purification
Mammary Glands, Animal / microbiology
Manure / microbiology*
Streptococcus / isolation & purification
Reg. No./Substance:
0/Anti-Bacterial Agents; 0/Calcium Compounds; 0/Dust; 0/Manure; 0/Oxides; 1305-78-8/lime

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

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