Pork Safety - Pre-Harvest
Pre-nitrate adaptation and chlorate supplementation to reduce Salmonella, Escherichia coli, and Yersinia enterocolitica in swine
June 15, 2004By Robin C. Anderson|Yong Soo Jung
Salmonella, E. coli and Yersinia are bacteria that can cause foodborne illness in humans. These bacteria can be found in the intestinal tract of pigs, therefore methods are sought to rid these...
Pork Safety - Pre-Harvest
Determination of Salmonella Classification Levels for Selected Iowa Swine Herds and an Evaluation of Production Risk Factors for Classification Status
May 20, 2004By James McKean
This study represents the first attempt to classify typical Midwestern
production sites for Salmonella spp. sero-prevalence using the Danish classification system. With 1,131 farms represented, this...
Swine Health - General Disease
Detection, Predictors, Immune Mechanisms and Prevalence of PRRSV Persistence in Boars
May 11, 2004By Jane Christopher-Hennings
Swine Health - General Disease
Characterization of West Nile Virus Infection in Swine
May 9, 2004By K. B. Platt DVM|Professor of Veterinary Microbiology
West Nile virus (WNV) infects weanling pigs. These infections appear to be mostly inapparent but can result in a reduction of weight gain during the time that WNV is found in the blood. The lesions...
Animal Science
Zone Heating for Wean-to- Finish Facilities: A Peformance Comparison
May 3, 2004By Richard R. Stowell
The University of Nebraska conducted on-farm research trials in 2003 and 2004 to de-termine the impacts of zone-heating options for wean-to-finish operations. Modulated LP gas-fired brooders were...
Air Emissions Monitoring Protocol
May 1, 2004By Dr. Steve
A research project was conducted from May 2004 through mid-September 2005 to investigate the concentration of hydrogen sulfide (H2S) at the perimeter of nine swine operations across the state of...
Pork Safety - Pre-Harvest
Role of gilts in the introduction and transmission of Salmonella in swine production systems
May 1, 2004By Ronald M. Weigel
Three swine production units in Illinois were examined with respect to the role of purchased gilts in introducing new genetic variants of Salmonella into a herd, and the risk of incoming gilts...
Environment - Air
Evaluation of the ammonia emissions from swine production units in Iowa
April 1, 2004By Jerry Hatfield|R. L. Pfeiffer
Ammonia concentrations in the air adjacent to and downwind of swine production units are of concern to producers. Most of the existing measurements have been conducted with single point monitors or...
Swine Health - General Disease
Genomic Quasispecies Associated with the Persistence of PRRS Virus
March 26, 2004By David Benfield
What is the significance of these results for producers? First, the most likely primary site for replication of the PRRS virus is lymphoid tissue, either tonsil and/or lymph nodes. The early...
Pork Safety - Pre-Harvest
On-Farm Evaluation of Diet Acidification
March 24, 2004By James Pettigrew
Under the conditions of these experiments, lactic acid added to complex nursery diets does not improve growth performance and (or) health in weaned pigs in large groups on a commercial farm, in the presence or absence of dietary lactose.
Animal Well-being
Development of Computer Template(s) to Economically Assess Alternatives to Individual Housing of Gestating sows
March 22, 2004By Donald G. Levis PhD
The most widely used method of housing gestating sows in the United States is individual gestation stalls. However, the United States pork industry is undergoing pressure to eliminate the use of...
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...
