Pork Safety - Pre-Harvest
Investigating the genetic relatedness among Salmonella species isolated in transportation trucks, holding pens and from swine at slaughter
July 31, 2003By Annette O’Connor
Previous studies have suggested strongly that the lairage is a source of Salmonella to swine. Using more refined tools to determine relatedness between isolates we have reinforced this finding. More...
Pork Safety - Pre-Harvest
Water Source and Delivery Method as a Risk Factor for Swine Infection with Toxoplasma gondii
July 31, 2003By Dr. Sharon Patton
The relative importance of a variety of on-farm risk factors needs to be understood to reduce T. gondii infection in swine. This study demonstrates that a variety of risk factors, including the...
Ammonia, Nitrous Oxide and Methane Emissions from Deep Bedded Hoop Structures
July 28, 2003By Steve Hoff
In this study investigated the gaseous N and CH4 losses in a deep-bedded hoop swine finishing system and associated composting system. Naturally ventilated livestock structures pose special problems...
Swine Health - General Disease
Investigation of the occurrence of suspected false PRRSV positive animals
July 28, 2003By Kyoung-Jin Yoon
Environment - Air
Ammonia, Nitrous Oxide and Methane Emmisions from Deep Bedded Hoop Structures
July 28, 2003By Thomas Richard
Swine hoop structures are an alternative housing system where the pigs are raised on a bedded manure pack. This bedded pack begins a natural composting process inside the building, providing...
Pork Safety - Pre-Harvest
Evaluation of antimicrobial alternatives to reduce the development of antibiotic resistance
July 17, 2003By Darryl Ragland DVM|PhD
Animal Well-being
Developing Criteria for Timely Euthanasia Decision Making
July 2, 2003By W.E. Morgan Morrow
A surface aeration system to reduce VFA, BOD, and solids in manure stored in open facilities
July 1, 2003
A pilot-scale intermittent surface aeration device was tested in this study. A circular concrete tank (2.4 m in diameter and 2.4 m in depth) was used as the manure storage where manure was aerated...
Swine Health - General Disease
Characterization of the Fetal Immune Response to PRRS
July 1, 2003By John Butler
PRRSV causes abnormal development of immune function. This is believed to allow the virus to persist in carrier animals that remain relatively healthy. Such disregulation of the immune is a common...
Best Management Practices Research in a Watershed with Swine Production Facilities
June 30, 2003By Mark Tomer
The South Fork of the Iowa River drains a 215,000-acre watershed in northcentral Iowa dominated by agricultural land uses. There are a number of swine-producing facilities in the area, plus several...
Pork Safety - Post-Harvest
Surface Material, Temperature, and Soil Effects on Pathogen Growth in Condensate
June 30, 2003By Jeffrey L. Kornacki
Understanding how pathogenic bacteria such as Listeria monocytogenes, Yersinia enterocolitica, and Salmonella can survive on surfaces commonly found in a meat processing environment is important for...
Environment - Water Usage / Conservation
Best Management Practice Research in a Watershed with Swine Production Facilities
June 30, 2003By Mark Tomer
This project has supported research in the South Fork of the Iowa River watershed, where swine and other livestock are being produced, and water resource concerns have been raised. These activities...
