Public Health - Antibiotics & Resistance
Towards controlling antimicrobial resistance in swine production systems: harnessing the paradoxical effects of micro-minerals and feed-grade antimicrobials on resistance in enteric bacteria
November 23, 2011By H. Morgan Scott
The present study was aimed at determining the effects of supplemental feed grade antimicrobials on the selection and co-selection of...
Public Health - Antibiotics & Resistance
Occurrence and Movement of Antibiotic Resistant Bacteria and Resistance Genes in Tile-Drained Agricultural Fields Receiving Swine Manure Application
October 24, 2011By Michelle Soupir
The use of antibiotics by the swine industry to increase production efficiency and treat disease is thought to contribute to antibiotic resistance in the environment. When manure from...
Public Health - Antibiotics & Resistance
Effects of Subtherapeutic Antibiotics on Antibiotic Resistance and Virulence Gene Transfer in Swine Intestinal Bacteria
December 21, 2009By Steven Carlson
Subtherapeutic antibiotics have been used for decades as growth promotants and prophylactic agents. The following antibiotics are approved for use a feed additives in swine: tetracyclines,...
Public Health - Antibiotics & Resistance
Analysis of in-plant Factors and Genotyping of Antimicrobial Resistance among Four Organisms Isolated from Swine Processing Plants
February 25, 2009By Wondwossen Gebreyes
We investigated the role of factors within processing plants including environmental and body site sources for carriage of for food safety significant pathogens and dissemination of antimicrobial...
Public Health - Antibiotics & Resistance
Tetracycline Concentrations and Circulation of tet Genes in Swine Feeding Operations and Adjacent Environments
February 10, 2009By Andrei Barkovskii
Farm animal manure-associated, antibiotic (AB)-resistant microorganisms and genes encoding this resistance are viewed as important sources for the observed increase of AB resistance in humans and...
Public Health - Antibiotics & Resistance
Special Call for Review of the Critical Literature: Fate and Transport of Antibiotic Residues and Antibiotic Resistance Genetic Determinants during Manure Storage, Treatment, and Land Application with emphasis on the Environmental Persistence and Transferability of these Determinants
March 24, 2006By Roderick Mackie
Public Health - Antibiotics & Resistance
Relationship between Antibiotics in Water and Rates of Antimicrobial Resistance Gene Transfer
January 12, 2006By Randall Singer
There is growing concern about the fate of antibiotics and antibiotic residues in the environment. These compounds can potentially have selective effects on bacteria, thus amplifying the resistance...
Public Health - Antibiotics & Resistance
Efficacy of direct-fed microbials administered from lactation through the nursery as an alternative to antibiotics in swine diets: an evaluation of performance, gastrointestinal microbial populations, and immune response
January 31, 2005By Charles Maxwell
Direct-fed microbials may hold promise as an alternative to growth promoting additions of antibiotics added to swine diets. A study conducted at the University of Arkansas evaluated the effects of...
Public Health - Antibiotics & Resistance
Persistance of plasmid-encoded resistance genes in the gastrointestinal bacterial flora of swine
October 20, 2004By Jeffery T. LeJeune
In the presence of antibiotics in the feed, pigs became readily colonized with E. coli resistant to the antibiotic ceftiofur. Some E. coli harboured the specific gene blaCMY-2, known to confer...
Public Health - Antibiotics & Resistance
Effects of egg yolk antibiotics and antibiotic regimens on carriage and shedding of Salmonella Typhimurium
October 1, 2004By Alan Mathew Ph.D.
Salmonella may reside in pigs during all stages of growth and may later contaminate pork products, thus presenting a foodborne hazard for humans. Often, salmonella are passed among hogs during...
