Swine Health - General Disease
Characterization of West Nile Virus Infection in Swine
May 9, 2004By K. B. Platt DVM|Professor of Veterinary Microbiology
West Nile virus (WNV) infects weanling pigs. These infections appear to be mostly inapparent but can result in a reduction of weight gain during the time that WNV is found in the blood. The lesions...
Swine Health - General Disease
Genomic Quasispecies Associated with the Persistence of PRRS Virus
March 26, 2004By David Benfield
What is the significance of these results for producers? First, the most likely primary site for replication of the PRRS virus is lymphoid tissue, either tonsil and/or lymph nodes. The early...
Swine Health - General Disease
Assessment of Mycoplasma hyopneumoniae strain variability and relationship to virulence
February 26, 2004By F. Chris Minion
Mycoplasma hyopneumoniae isolated from different pig herds showed variation in disease potential. This is not unexpected since differences in disease symptoms occur widely in the field. There have...
Swine Health - PRRS
Genetic Resistance to Porcine Reproductive Respiratory Syndrome Virus (PRRSV)
February 10, 2004By Rodger K. Johnson
In the experiment pigs of two distinctly different populations were challenged with PRRS virus. The lines differed in physiological responses to virus (body temperature, weight gain, ability to...
Swine Health - General Disease
PCV-2 viral DNA(s) are Infectious for Gnotobiotic Swine
January 23, 2004By Steven Krakowka
Porcine circovirus type 2 (PCV-2) infection is now recognized to be a common subclinical infection of swine of all ages. Disease expression as postweaning multisystemic wasting syndrome (PMWS) is...
Swine Health - General Disease
Effect of Sow Dietary Glutamine Intake on Subsequent Nursery Pig Growth After an Intestinal Disease Challenge
November 17, 2003By Philip S. Miller
The data from this experiment suggest that increased sow consumption of glutamine does not improve the immune response of endotoxin-treated progeny following weaning. However, it appears that...
Swine Health - General Disease
Evaluation of a Chlorate Treatment on Post-Weaning Diarrhea Caused by E. Coli in Weaned Pigs
September 15, 2003By Tom S. Edrington PhD
In a series of five experiments, we evaluated the effect of chlorate on reducing gut populations of the E. coli capable of causing post-weaning diarrhea. In three of the experiments, we had a model...
Swine Health - General Disease
Investigation of the occurrence of suspected false PRRSV positive animals
July 28, 2003By Kyoung-Jin Yoon
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...
Swine Health - General Disease
Studies on PRRSV vaccination: interleukin-12 to enhance the immune response to killed vaccinte and combination vaccine with MLV and killed vaccines
June 2, 2003By Dr. Brad Thacker|Dr. Dachrit Nilubol|Dr. Eileen Thacker
PRRSV vaccine efficacy remains controversial. The currently available PRRSV vaccines, either modified live (MLV) or killed virus (KV) vaccines, often appear to provide insufficient protective...
