Animal Science - Swine Nutrition
Economic Analysis of the UNL Gilt Development Project
June 3, 2010By Rodger Johnson
Restricting energy intake during gilt development lowered costs associated with gilt development and increased subsequent productivity of these females. The study modeled costs and value of market...
Swine Health - PRRS
Genetic and antigenic characterization of a recent PRRSV isolate
May 30, 2010By Tanja Opriessnig
Porcine reproductive and respiratory syndrome virus (PRRSV) NC16845 was isolated from porcine tissue submitted to the Iowa State University Veterinary Diagnostic Laboratory in 2006. The isolate...
Pork Safety
Effect of lactic acid and commercial chilling processes on the survival of Salmonella, Campylobacter coli and Yersinia spp. in pork variety meats
May 28, 2010By Margaret Hardin
Previous research on pork variety meats reported a 2% lactic acid spray was the most effective antimicrobial of those tested with the least negative effect on product quality (Zerby et al.,...
Pork Safety - Pre-Harvest
Pharmacokinetics and tissue residues of procaine penicillin G in sows after administration of 33,000 IU/kg intramuscularly and by needle-free injection – Part A – Live Animal Work
May 17, 2010By Locke Karriker
Forty sows were utilized in a study to determine the plasma concentration profile and tissue residues of procaine penicillin G after injection by two methods (20 sows each method). A target dose...
Swine Health - General Disease
Epidemiology of porcine pestivirus and Torque teno virus in wean-to-finish pigs
May 10, 2010By Jeffrey Zimmerman
Oral fluids are inexpensive to collect. Each pen sample requires a length of cotton rope, a plastic bag, and a snap-cap plastic tube. Labor costs include the time required to place...
Animal Well-being
Gestating sows’ preference for open, closed and animal-controlled stall designs
May 5, 2010By Ed Pajor
This project aimed to determine the preference of pigs for stalls as a function of stall design, home housing condition and the presence of socially dominant or subordinate group members. ...
Animal Science - Swine Nutrition
Energy and amino acid digestibility of corn distillers syrup by-products in growing pigs
May 5, 2010By G.C. Shurson
Increased market competition for corn between the livestock and poultry industry and the ethanol industry has led to record high feed prices in recent years. As a result, pork producers have...
Animal Science - Sow Lifetime Productivity
Evaluation of lean content and trim of cull sows on their value at harvest
May 5, 2010By Ken Stalder
A study was conducted to estimate the lean content from the four USDA grades of cull sows, determine if standardized prediction equations for estimating cull sow lean content is possible and to...
Animal Well-being
Effects of floor space during transport and journey time on transport losses and well-being of market-weight pigs.
May 4, 2010By Michael Ellis
Transport losses represent a significant economic cost to the swine industry and are of major concern from an animal welfare perspective. Losses include pigs that die during the journey or are...
Pork Quality
The influence of facility design and pre-sorting on the stress response and transportation losses of the market weight pig
May 3, 2010By Anna Johnson
Johnson et al. (2010) reported a 66 % reduction in transport losses in pigs raised in large pen configurations that were pre-sorted, however, the researchers could not determine if the transport loss...
Swine Health - PRRS
Evaluation of adjuvants at the mucosal area for the development of innovative mucosal vaccine against PRRS
April 29, 2010By Renukaradhya Gourapura
Porcine Reproductive and Respiratory Syndrome (PRRS) is a chronic and economically important viral disease of pigs. Currently available PRRS virus (PRRSV) vaccines have been administered systemically...
Swine Health - PRRS
Identifying PRRSV structural components that activate regulatory T cells and diminish protective immunity
April 26, 2010By Tanya LeRoith
This study was designed to test the hypothesis that certain structural components of PRRSV drive the activation of regulatory T cells (Tregs). Activating these T cells would thereby diminish the...
