Animal Science
Development of an in vitro model of heat stress during pig oocyte maturation and its impact on embryonic developmental competency
August 3, 2011By Jason Ross
Heat stress has a significant negative impact on agriculture production. A significant portion of this loss is recognized through lost reproductive ability in swine herds during periods of elevated...
Animal Science - Sow Lifetime Productivity
Using objective mechanical and physiologic measurement to build robust producer tools for detecting, scoring and treating lameness in sows
August 3, 2011By Locke Karriker
The main objectives of this study were: 1) To produce a robust observational lameness scoring system with accompanied visual educational material, (2) to assess sodium salicylate and flunixin...
Animal Well-being
Regulating Feed Intake of Group Housed Replacement Gilts by Altering Dietary Cation/Anion Difference
July 28, 2011By Paul Walker
The swine industry is currently facing an enormous amount of public pressure to eliminate the use of individual gestation stalls in favor of group housing for gestating sows. Since over...
Swine Health - PRRS
Development of diagnostic assays for detecting PRRSV infection using oral fluid samples as an alternative to serum-based assays
July 26, 2011By Ying Fang
Currently, diagnosis of PRRSV infection is by virus antigen, nucleic acid or antibody detection in serum samples. Thus, serum is the standard sample for diagnostic evaluation. However,...
Swine Health - General Disease
Contribution of prior SIV infection in enhancing secondary Haemophilus parasuis disease
July 25, 2011By Crystal Loving
Porcine respiratory disease complex (PRDC) is a multifactorial disease process with a variety of infectious agents contributing to disease. The complex cannot be simply explained as infection with...
Swine Health - PRRS
Assessment of the Economic Impact of Porcine Reproductive and Respiratory Syndrome Virus on U.S. Pork Producers
July 25, 2011By Derald Holtkamp
An economic analysis published in 2005 estimated that productivity losses from clinical porcine reproductive and respiratory syndrome (PRRS) virus infections cost U.S. pork producers $560...
Swine Health - General Disease
Comparison of PCV2 vaccine efficacy in 5 and 21 day old piglets
July 19, 2011By Tanja Opriessnig
Porcine circovirus type 2 (PCV2) vaccines have become widely used since approved in 2006. It is not uncommon for producers to use PCV2 vaccines in pigs younger than what is approved or recommended by...
Swine Health - PRRS
Structural characterization of the PRRSv glycan shield
July 15, 2011By Michael P. Murtaugh
Knowing the composition and structure of PRRSV is an important prerequisite for development of immunological prevention and control strategies, just as knowing what a spark plug looks like is...
Animal Science - Swine Nutrition
Impacts of Feeding DDGS to Swine: Aerial Emissions and Potential Management Strategies
July 8, 2011By Hongwei Xin
Feeding corn dried distillers grains with solubles (DDGS) to swine is becoming common in pork production. With feed being the primary cost in pork production and continued interest in...
Swine Health - General Disease
Characterization of Mycoplasma hyorhinis transmission and spread within endemically infected populations
July 7, 2011By Simone Oliveira
Bacterial diseases create a significant economic impact in today’s swine industry by causing an increase in mortality rates and a reduction in feed efficiency and growth. Polyserositis is one...
Swine Health - General Disease
A modified-live prototype vaccine for PCV-2 in swine
July 1, 2011By Steven Krakowka
1. The overall goal of this project is to test the hypothesis that, “The critical virulence determinant of swine-virulent PCV2 resides in a linear 3-4 amino acid region in the center of...
Environment - Manure Storage / Application
Impact of Liquid Swine Manure Application on Soybean Yield and Surface and Ground Water Quality
June 28, 2011By Professor Ramesh S. Kanwa
In an earlier study conducted at Iowa State University from 2001 to 2006, liquid swine manure was applied to corn plots to give a total nitrogen application of 150 lbs/acre and the targeted nitrogen...
