Swine Health - PRRS
Modeling PRRS virus aerosol transmission within and between farms
October 1, 2006By Jeffrey Zimmerman
The objective of this research was to try to understand two major stages of aerosol transmission: 1) how much PRRSV is aerosolized by pigs and 2) how long does airborne PRRSV remain infectious. How...
Animal Well-being
Evaluation of sows at harvest to determine the incidence of abnormalities that could lead to culling of breeding herd females
August 22, 2006By Ken Stalder
Poor sow longevity in commercial pork production systems can lead to economic inefficiency and animal welfare concerns (Stalder et al., 2004). In the United States, reported annual breeding female...
Swine Health - General Disease
Comparison of the virulence of PCV2 isolates from field cases with and without hallmark lesions of lymphoid depletion
August 15, 2006By Patrick Halbur
To our knowledge, this is the first report to demonstrate a clear difference in virulence between two well-characterized PCV2 isolates in a controlled experimental setting using a SPF pig model...
Animal Science
Development of Condition Scoring Guide – using live animals
August 6, 2006By Locke Karriker
The objectives of the study were to develop educational materials to assist pork producers and animal caretakers in the evaluation of sow body condition, to estimate the amount of feed and...
Environment - Air
Development of a user-friendly database and decision tree for selecting air quality BMPs
May 15, 2006By Ken Stalder
Pork Safety - Pre-Harvest
Determination of Salmonella Classification Levels for Selected Midwestern Swine Herds Utilizing Abattoir-based Samples and Compare Classification Stability over Time
March 21, 2006By James McKean
Since 1995, the Danish swine industry has conducted an on-farm Salmonella control program to categorize production sites as to their risks for Salmonella contamination. This classification has been...
Swine Health - General Disease
Prevention of Edema Disease Using a Probiotic Expressing Shiga Toxin 2e Receptor Mimic
February 13, 2006By Nancy Cornick
Edema disease is a naturally occurring infection of weaned piglets caused by E. coli bacteria that produce Shiga toxin. This toxin is absorbed from the gut into the blood stream and causes the...
Swine Health - PRRS
Development of a Killed Subunit PRRS Vaccine
February 7, 2006By D.L. Hank Harris
The focus of our research funded by the National Pork Board was to develop second generation killed PRRS vaccines. The portion of the PRRS virus responsible for stimulating the neutralizing immune...
Environment - Air
Air Emissions Monitoring Protocol
January 23, 2006By Steven Hoff PhD
H2S concentrations measured at the perimeter of nine swine operations across the state indicated that for the sizes of operations investigated with this study, the dominating influence on perimeter...
Swine Health - PRRS
Construction of Dynamic Aerosol Toroid Chambers
January 18, 2006By Jeffrey Zimmerman
PRRSV costs the US swine industry 560 million dollars each year in lost productivity. We can now successfully eliminate PRRSV from individual farms, but we cannot keep herds from becoming...
