Swine Health - PRRS
ub-typing of PRRSV isolates by means of measurement of cross-neutralization reactions
November 3, 2006By Fernando Osorio
One of the major obstacles for PRRSV control is the significant variability of this virus in the field. Such variability of PRRSV is expressed at the level of the genetic information of the strains (...
Pork Safety - Pre-Harvest
Longitudinal evaluation of the effect of ventilation and environmental management of swine barns on Salmonella prevalence in finishing swine
November 2, 2006By Julie Funk
These data suggest that environmental temperature; in particular lower environmental temperatures in early finisher pigs and high environmental temperature in older finisher pigs are associated with...
Swine Health - PRRS
Development and Optimization of a Blocking ELISA for Type 1 and Type 2 Strains of Porcine Reproductive and Respiratory Syndrome Virus
November 1, 2006By Christopher Chase
The NPB Initiative recognizes that the most effective way to control PRRS is to eliminate the virus from domestic swine herds. Control and elimination strategies should include diagnostic tools that...
Swine Health - General Disease
Investigating the pathogenicity of pestiviruses or pesti-like viruses isolated from recent swine epidemics
November 1, 2006By Kelly Lager
Bovine viral diarrhea virus (BVDV) is a virus usually found in domestic and wild ruminants. However, a BVDV was recently isolated from a case of severe mortality (about 55%) in finishing swine. This...
Swine Health - PRRS
Accurate ELISA test development: Evaluation of cysteine protease domain of non-structural protein 2 as a potential antigen
October 31, 2006By Ying Fang
Currently, in the absence of effective vaccines and therapeutic drugs, one of the key approaches to achieve the “National PRRS Elimination” is to identify PRRSV infected pigs, so such...
Swine Health - General Disease
Assessment of the infectivity of asymptomatic carriers, to understand the dynamics of Mycoplasma hyopneumoniae infection in reproductive herds
October 31, 2006By Carlos Pijoan
Designing disease control and/or eradication protocols depends mostly in how much we know about the pathogen we want to eliminate. Regarding Mycoplasma hyopneumoniae, the causative agent of Enzootic...
Utilization of crystalline amino acids by the gut in growing pigs
October 12, 2006By Nathalie L. Trottier
Excessive production of nitrogen from livestock production systems has place a strain on the environment. Methods to reduce nitrogen losses from farm animals will become necessary to ensure a...
Environment - Other
Utilization of crystalline amino acids by the gut in growing
October 12, 2006By Nathalie L. Trottier
Conventional diets containing corn and soybean meal fed to growing pigs can be reduced in protein by replacing a portion of the protein with crystalline amino acids. Crystalline amino acids are of...
Swine Health - PRRS
An Improved Method for PRRSV Surveillance and Monitoring
October 11, 2006By 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 and recover the...
Animal Well-being
The frequency of the HAL-1843 mutation of the RYR gene in dead and non-ambulatory/non-injured pigs on arrival at the packing plant.
October 11, 2006By Michael Ellis
The HAL-1843 mutation of the RYR gene (commonly called the “Stress” or “Halothane” gene) is associated with increased stress susceptibility and death loss in pigs. Death loss and...
Pork Safety - Pre-Harvest
Salmonella prevalence during the finishing production stage
October 10, 2006By Scott Hurd
This research project was conducted with the objective of determining if the Salmonella prevalence at the end of the finishing production stage correctly represents the Salmonella status of a lot, as...
Swine Health - PRRS
The role of downtime in pathogen contamination of swine facilities
October 9, 2006By Dr. Sandra Amass
The effectiveness of decontamination procedures and downtimes in reducing PRRSV and bacterial contamination of wean-finish and nursery rooms of a commercial swine farm was tested. The herd was...
