Swine Health - General Disease
Investigation into the Ability of Anti-Idiotypic Antibodies to Protect Pigs from Porcine Reproductive and Respiratory Syndrome Virus
February 10, 2005By En-Min Zhou
PRRS is the most costly disease U.S. swine producers confront and little progress has been made in recent years to improve the situation. Prevention and control of PRRS has been difficult, in part...
Swine Health - General Disease
The immunological significance of PRRS virus genetic variation
February 4, 2005By Kyoung-Jin Yoon
A high rate of genetic and antigenic variability is known to exist among PRRS viruses and has garnered great attention from the swine industry since such a phenotypic variation is perceived to...
Pork Safety - Pre-Harvest
Development of a rapid detection method for Salmonella serotypes using a flow cytometric assay
February 2, 2005By Michael Wannameuhler
The use of serological assays to monitor the health status of swine herds has been used for several decades. The primary assays employed have included agglutination, neutralization, and/or ELISA...
Public Health - Antibiotics & Resistance
Efficacy of direct-fed microbials administered from lactation through the nursery as an alternative to antibiotics in swine diets: an evaluation of performance, gastrointestinal microbial populations, and immune response
January 31, 2005By Charles Maxwell
Direct-fed microbials may hold promise as an alternative to growth promoting additions of antibiotics added to swine diets. A study conducted at the University of Arkansas evaluated the effects of...
Animal Well-being
Influence of Gestation Housing on Sow Welfare and Productivity
January 26, 2005By Roy Kirkwood
The data from this experiment suggests that the mixing of strange sows into groups can be done without adversely affecting fertility. The lack of overall effect on litter size and farrowing rate...
A Planning Tool for Assessing the Relative Contribution of Facility Components to Air Quality Surrounding Pork Production Sites
January 20, 2005
This National Pork Board project resulted in an odor footprint tool (OFT) that is adaptable to regional weather conditions and multiple pork facility layouts. The OFT provides a visual representation...
Environment - Air
A Planning Tool for Assessing the Relative Contribution of Facility Components to Air Quality Surrounding Pork Production Sites
January 20, 2005By Dennis D. Shulte
This National Pork Board project resulted in new odor planning tools called “odor roses” and “odor footprints” that provide visual representation of the frequency, direction and extent of...
Animal Well-being
Evaluation of the effect of group size and structure on welfare of gestating sows in pens with electronic sow feeders
January 18, 2005By John Deen
The present research was an attempt to see how the existing system of commercial group houses with ESF can be made more welfare friendly by modifying the group size and structure. The groups studied...
Loss of Virulence Genes in Escherichia coli Populations during Manure Storage on a Commercial Swine Farm
January 1, 2005By Patrick Duriez
Confined livestock production farms typically store their wastes prior to land application. Here, we employed three complementary approaches to evaluate changes in the population structure and...
Demonstrating Innovative Use of Precision Farming Technologies to Optimize Manure Nutrient Utilization and Reduce Environmental Concerns
January 1, 2005By Dr. Richard Wolkowski
The uniform application of manure is difficult and often leads to questions of available nutrient credits. For these reasons farmers and their consultants often discount the value of these nutrients...
PHOSPHORUS RUNOFF POTENTIAL OF VARYING SOURCES OF MANURE APPLIED TO FESCUE PASTURES IN VIRGINIA
January 1, 2005
The P Index for Virginia uses coefficients describing the risk of P runoff from pastures for different nutrient sources, but these coefficients have not been verified on Virginian soils. An...
Environment - Water Usage / Conservation
Water intake and wastage at nipple drinkers by growing-finishing pigs
January 1, 2005By Y. Z. Li
Three experiments were conducted to assess water intake, water wastage, and a means to decrease water wastage by growing-finishing pigs from nipple drinkers. In Exp. 1, 48 pigs were studied during ...
