Epidemiologic investigation on propensity for lateral spread of PED virus
March 15, 2014By Robert B. Morrison
The objectives of this study were to determine lateral transmission patterns of PEDv in the US. For objective 1, evaluation of harvest plants as points or nodes of PEDv transmission. To...
Bioassay for Porcine Epidemic Diarrhea Virus contaminated feed
March 12, 2014By Andrew Bowman
Within the past year, Porcine Epidemic Diarrhea Virus (PEDV) has emerged as a significant swine disease in the United States. This coronavirus continues to spread within the U.S. swine herd...
Animal Science - Swine Nutrition
Comparative Digestibility of energy and nutrients in gestating sows and growing pigs
March 7, 2014By Hans H. Stein
The objective of this research was to compare DE and ME values and values for the apparent total tract digestibility (ATTD) of energy and...
Swine Health - PRRS
Design and analysis of PRRSv surveillance: temporal and spatial sampling, mapping, monitoring and automated rapid detection of outbreak
March 6, 2014By Chong Wang
Innovation of cost effective methods for eliminating the PRRSv from individual herds has stimulated hope that the industry may someday eliminate the virus from the U.S. However, exploiting this...
Environmental stability of PEDV (porcine epidemic diarrhea virus)
March 1, 2014By Sagar M. Goyal
Animal Well-being
Protecting low ranking sows in group-housing systems
March 1, 2014By Yuzhi Li
Background: In group-housing systems, low-ranking sows are usually defeated and injured by high ranking sows. This results in low-ranking sows becoming fearful of further conflicts when...
Animal Science - Swine Nutrition
Improving production efficiency and carcass weight of finishing pigs housed under heat stress conditions by heat abatement with dietary betaine
February 24, 2014By Eric Van Heugten
Heat stress has serious negative consequences for the swine industry by reducing feed intake and growth performance in pigs. Based on commercial observations, we estimate that heat stress during the...
Swine Health - PRRS
Characterization of neutralizing antibody responses to PRRSV and association with host
February 18, 2014By Raymond R. Rowland
Virus neutralization (VN) activity following vaccination or infection with porcine reproductive respiratory syndrome virus (PRRSV) is generally considered to be weak and primarily directed...
Swine Health - Foreign Animal Disease
Investigating potential existence of chronic, persistent foot-and-mouth disease virus infection in domestic pigs; implications for disease control strategies
February 18, 2014By Jonathan Arzt
The severe measures routinely enacted for control of foot-and-mouth disease (FMD) outbreaks are based upon extreme contagiousness of the disease, rapidity of spread, and fear of residual...
Animal Science
Characterization of porcine parvovirus type 3 (PPV3) infection in growing pigs
February 17, 2014By Patrick G. Halbur DVM
In recent years increasing usage of molecular biology tools has resulted in identification of a variety of previously unknown virus species. Porcine parvovirus type 3 (PPV3) is considered an emerging...
Public Health - Antibiotics & Resistance
Factors driving the emergence and persistence of multidrug resistance-encoding plasmids in the swine environment
February 16, 2014By Timothy Johnson
This study examined the impact of subtherapeutic and therapautic levels of chlortetracycline in feed on the selection and dissemination...
Swine Health - General Disease
Characterization of porcine astrovirus infection in the U.S. pig population
February 16, 2014By Tanja Opriessnig
Many astrovirus (AstV) species are associated with enteric disease. In this study, the prevalence rates of porcine AstV types 1–5 (PAstV1–PAstV5) in the U.S. pig population were...
