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...
Public Health - Salmonella
Risk Factors for the Occurance of drug resistant Salmonella spp. in commercial swine production
August 27, 2004By Peter Bahnson
Resistance to two antimicrobial drugs frequently used in swine production, tetracycline and sulfa drugs, was common among Salmonella isolates from commercial farms. Since these isolates were from...
Public Health - Antibiotics & Resistance
Evaluation of antimicrobial alternatives to reduce the development of antibiotic resistance
June 16, 2004By Darryl Ragland DVM|PhD
The oregano oil product evaluated did not enhance nursery pig performance or influence the development of antimicrobial resistance to the panel of antibiotics used to screen resistance. While a high...
Public Health - Antibiotics & Resistance
Use of a pig-derived competitive exclusion culture as an alternative to antibiotics to control colibacillosis in weaned pigs
March 16, 2004By MS|Roger B. Harvey DVM
There are bacteria called E. coli that can cause disease and death in young pigs, particularly nursery-age ones. Although antibiotics have been used to treat the disease, the bacteria have become...
Public Health - Antibiotics & Resistance
Effects of a commercial probiotic supplement on intestinal E. coli and growth in the weaned pig
February 28, 2004By Jeffery T. LeJeune
There are many products on the market sold as probiotics with label claims to enhance growth and production. Regulations governing the licensure, sale, and addition of these products to animal feeds...
Public Health - Other Zoonotic Diseases
Fate and transport of E. coli in soil and subsurface settings: Swine Waste Management within the context of TMDL’s
February 4, 2004By Ronald F. Turco|Sylvie Brouder
The development of manure application recommendations has not taken into account the survival, movement and biotic interactions of bacteria in agricultural soils, and in fact may enhance survival of...
Public Health - Other Zoonotic Diseases
Determination of the Presence and Infectivity of Swine Hepatitis E Virus (HEV) in Swine Manure Storage Facilities and Nearby Water Sources
December 11, 2003By Patrick Halbur
Hepatitis E virus (HEV) infects pigs but does not cause clinical disease in pigs. There is concern that hepatitis E virus from pigs may infect people and that pigs may be an important reservoir for...
Public Health - Antibiotics & Resistance
The Role of Sub-Therapeutic Chlorotetracycline on the Prevalence and Antimicrobial Resistance of Salmonella Enterica Isolated from Swine
September 9, 2003By Julie Funk
There is increasing scrutiny regarding the use of antimicrobials in animals as a result of increasing antimicrobial resistance in human pathogens, and in particular foodborne outbreaks caused by...
