- Avian ecology and behavior
- Animal Disease Management and Epidemiology
- Wildlife Ecology and Conservation
- Environmental Toxicology and Ecotoxicology
- Influenza Virus Research Studies
- Toxic Organic Pollutants Impact
- Species Distribution and Climate Change
- Aquaculture disease management and microbiota
- Animal Behavior and Welfare Studies
- Bird parasitology and diseases
- Respiratory viral infections research
- Microbial infections and disease research
- Viral gastroenteritis research and epidemiology
- Oil Spill Detection and Mitigation
- Animal Ecology and Behavior Studies
- Climate variability and models
- Mercury impact and mitigation studies
- Fish Ecology and Management Studies
- Viral Infections and Vectors
- Parasite Biology and Host Interactions
- Bacteriophages and microbial interactions
- Genetic diversity and population structure
- Vibrio bacteria research studies
- Genetic and phenotypic traits in livestock
- Zoonotic diseases and public health
Animal and Plant Health Inspection Service
2014-2023
Mississippi State University
2013-2023
National Wildlife Research Center
2013-2022
United States Department of Agriculture
2013-2022
Life Services (United States)
2017-2021
Washington State University
2020
South China Agricultural University
2018
St. Jude Children's Research Hospital
2018
University of Georgia
1982-1983
W.E. Upjohn Institute for Employment Research
1973
Abstract Influenza D virus (IDV) has been identified in domestic cattle, swine, camelid, and small ruminant populations across North America, Europe, Asia, South Africa. Our study investigated seroprevalence transmissibility of IDV feral swine. During 2012–2013, we evaluated swine 4 US states; 256 tested, 57 (19.1%) were seropositive. Among 96 archived influenza A virus–seropositive samples collected from 16 states during 2010–2013, 41 (42.7%) Infection studies demonstrated that...
Knowledge of population density is necessary for effective management and conservation wildlife, yet rarely are estimators compared in their robustness to effects ecological observational processes, which can greatly influence accuracy precision estimates. In this study, we simulate biological processes using empirical data assess animal scale movement, true density, probability detection on common estimators. We also apply collection analytical techniques the field evaluate ability estimate...
Abstract A periodic countercurrent whole beer process was developed for the recovery of novobiocin to eliminate high cost mycelium filtration and accompanying antibiotic losses in filter cake. In such a screened, but unfiltered, fermentation is contacted with special grade an anionic‐exchange resin series specially designed, well mixed columns. Each column fitted screen sized retain within allow cells press. Periodically lead isolated from train, washed free solids, eluted. freshly eluted...
Effective management of widespread invasive species such as wild pigs (Sus scrofa) is limited by resources available to devote the effort. Better insight effectiveness different strategies on population dynamics important for guiding decisions resource allocation over space and time. Using a dynamic model, we quantified effects culling intensities time between events in USA using empirical patterns data-based demographic parameters. In simulated populations closed immigration, substantial...
The demonstrated link between the emergence of H3N2 variant (H3N2v) influenza A viruses (IAVs) and swine exposure at agricultural fairs has raised concerns about human health risk posed by IAV-infected swine. Understanding antigenic profiles IAVs circulating in pigs is critical to developing effective prevention control strategies. Here, 68 IAV isolates recovered from Ohio (2009 2011) were antigenically characterized. These compared with other H3 commercial swine, wild birds, canines, along...
ABSTRACT Influenza A viruses (IAVs) in swine can cause sporadic infections and pandemic outbreaks among humans, but how avian IAV emerges is still unclear. Unlike domestic swine, feral are free ranging have many opportunities for exposure through contacts with various habitats animals, including migratory waterfowl, a natural reservoir IAVs. During the period from 2010 to 2013, 8,239 serum samples were collected across 35 U.S. states tested against 45 contemporary antigenic variants of...
Abstract Subtype H7 avian–origin influenza A viruses (AIVs) have caused at least 500 confirmed human infections since 2003 and culling of >75 million birds in recent years. Here we antigenically genetically characterized 93 AIV isolates from North America (85 migratory waterfowl [1976–2010], 7 domestic poultry [1971–2012], 1 a seal [1980]). The hemagglutinin gene these are separated those Eurasia. Gradual accumulation nucleotide amino acid substitutions was observed the AIVs poultry....
Genetic reassortment between influenza A viruses (IAVs) facilitate emergence of pandemic strains, and swine are proposed as a "mixing vessel" for generating reassortants avian mammalian IAVs that could be risk to mammals, including humans. However, how transmissible reassortant emerges in not well understood. Genomic analyses 571 isolates recovered from nasal wash samples respiratory tract tissues group co-housed pigs (influenza-seronegative, H1N1 IAV–infected, H3N2 IAV–infected pigs)...
A 20-stall farrowing facility was partitioned into two separate rooms of 10 stalls each so that photoperiod could be controlled. In addition, temperature and air movement were equalized in the rooms. The light regimens utilized 8 h light: 16 dark, light:8 dark. total 26 sows replicates used. Females moved on d 103 ±2 pregnancy, litters at birth weaning 28 age. Traits evaluated included litter size weaning, 21-d pig weights, milk yield 15, survival rate number days from to estrus for sow....
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTScale-up of Column Adsorption Process by Computer SimulationJ. W. Chen, J. A. Buege, F. L. Cunningham, and I. NorthamCite this: Ind. Eng. Chem. Des. Dev. 1968, 7, 1, 26–31Publication Date (Print):January 1968Publication History Published online1 May 2002Published inissue 1 January 1968https://pubs.acs.org/doi/10.1021/i260025a006https://doi.org/10.1021/i260025a006research-articleACS PublicationsRequest reuse permissionsArticle...
Energy and time expenditures are determinants of bird migration strategies. Soaring birds have developed strategies to minimize these costs, optimizing the use all available resources facilitate their displacement. We analysed effects different wind factors (tailwind, turbulence, vertical updrafts) on migratory flying adopted by 24 satellite-tracked American white pelicans (Pelecanus erythrorhynchos) throughout spring autumn in North America. hypothesize that conditions encountered along...
Serum concentrations of pituitary and adrenal hormones were determined in lactating sows ovariectomized (OVX) gilts exposed to 8 h (8L:16D) or 16 light (16L:8D). In addition serum prolactin (PRL) after a thyrotropin releasing hormone (TRH) challenge. At 103 ± 2 d gestation 3 wk ovariectomy nulliparous on 7 9 the estrous cycle (d −10), blood samples collected from jugular vein cannulae at 30-min intervals for beginning 0800 h. Immediately last sample, 13 five OVX assigned 8L:16D 14 16L:8D/d...
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTComputer Simulation of Plant-Scale Multicolumn Adsorption Processes Under Periodic Countercurrent OperationJ. W. Chen, F. L. Cunningham, and J. A. BuegeCite this: Ind. Eng. Chem. Process Des. Dev. 1972, 11, 3, 430–434Publication Date (Print):July 1, 1972Publication History Published online1 May 2002Published inissue 1 July 1972https://pubs.acs.org/doi/10.1021/i260043a017https://doi.org/10.1021/i260043a017research-articleACS PublicationsRequest...