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Articles 1 - 11 of 11
Full-Text Articles in Medicine and Health Sciences
Reproductive Diseases Of Dairy Cattle, Christina Suzanne Tortosa
Reproductive Diseases Of Dairy Cattle, Christina Suzanne Tortosa
Dairy Science
The efficiency of today’s dairy has increased due to the growing number of cows per herd and the production of pounds of milk per cow. Increased milk production however has resulted in a reduction of conception rates causing a loss of income for the dairy producer since the dairy industry relies heavily on milk production, which is caused by good conception rates. Many reproductive disorders like dystocia, metritis, endometritis, and retained placenta affect conception rates, and can lead to metabolic diseases like rumen acidosis, milk fever, and displaced abomasums. Recurrent metabolic diseases can eventually lead to culling of the herd. …
Pandemic Potential Of Reassortant Swine Influenza A Viruses, Christy Brockwell Staats
Pandemic Potential Of Reassortant Swine Influenza A Viruses, Christy Brockwell Staats
Theses and Dissertations (ETD)
Influenza A viruses are capable of causing disease in several species, including birds, humans and swine. Host specificity of the viruses is not absolute, and is influenced by a range of factors. Swine play a pivotal role in the interspecies transmission of influenza A viruses, as they are susceptible to infection with both human and avian strains and have been implicated as a “mixing vessel” for the reassortment of influenza A viruses from different species. The reassortment of influenza A viruses of human and avian origin led to human influenza pandemics in 1957 and 1968.
The dynamics of swine influenza …
Arkansas Animal Science Department Report 2010, Zelpha B. Johnson, D. Wayne Kellogg
Arkansas Animal Science Department Report 2010, Zelpha B. Johnson, D. Wayne Kellogg
Arkansas Agricultural Experiment Station Research Series
No abstract provided.
Development Of A Mechanistic Model To Represent The Dynamics Of Particle Flow Out Of The Rumen And To Predict Rate Of Passage Of Forage Particles In Dairy Cattle., S Seo, Cristina Lanzas, L O. Tedeschi, A Pell, D G. Fox
Development Of A Mechanistic Model To Represent The Dynamics Of Particle Flow Out Of The Rumen And To Predict Rate Of Passage Of Forage Particles In Dairy Cattle., S Seo, Cristina Lanzas, L O. Tedeschi, A Pell, D G. Fox
Faculty Publications and Other Works -- Biomedical and Diagnostic Sciences
A mechanistic and dynamic model was developed to represent physiological aspects of particle dynamics in the reticulo-rumen (RR) and to predict rate of passage out of the RR (Kp) of forage particles quantitatively. The model consists of 2 conceptual pools with 3 spatial compartments of particles; the compartment the particle enters is based on functional specific gravity (FSG). The model assumes 2 major pressure gradient-driven flows of particles out of the RR through the reticulo-omasal orifice between 2 consecutive primary reticular contractions. One is associated with the second phase of primary reticular contraction and involves propulsion of particles in the …
Development Of A Mechanistic Model To Represent The Dynamics Of Particle Flow Out Of The Rumen And To Predict Rate Of Passage Of Forage Particles In Dairy Cattle., S Seo, Cristina Lanzas, L O. Tedeschi, A Pell, D G. Fox
Development Of A Mechanistic Model To Represent The Dynamics Of Particle Flow Out Of The Rumen And To Predict Rate Of Passage Of Forage Particles In Dairy Cattle., S Seo, Cristina Lanzas, L O. Tedeschi, A Pell, D G. Fox
Cristina Lanzas
A mechanistic and dynamic model was developed to represent physiological aspects of particle dynamics in the reticulo-rumen (RR) and to predict rate of passage out of the RR (Kp) of forage particles quantitatively. The model consists of 2 conceptual pools with 3 spatial compartments of particles; the compartment the particle enters is based on functional specific gravity (FSG). The model assumes 2 major pressure gradient-driven flows of particles out of the RR through the reticulo-omasal orifice between 2 consecutive primary reticular contractions. One is associated with the second phase of primary reticular contraction and involves propulsion of particles in the …
Common Regional Pests Of Western Australia, Department Of Agriculture And Food, Western Australia
Common Regional Pests Of Western Australia, Department Of Agriculture And Food, Western Australia
Bulletins 4000 -
Western Australia is free from many exotic animal and plant pests, diseases and weeds that are present elsewhere in Australia. However, the state does have some unwanted intruders. Of these, many are declared plants or declared animals which, for the sake of convenience, we collectively call declared pests.
Modeling On-Farm Escherichia Coli O157:H7 Population Dynamics, P Ayscue, Cristina Lanzas, R Ivanek, Y T. Grohn
Modeling On-Farm Escherichia Coli O157:H7 Population Dynamics, P Ayscue, Cristina Lanzas, R Ivanek, Y T. Grohn
Faculty Publications and Other Works -- Biomedical and Diagnostic Sciences
Escherichia coli O157:H7 is a potentially fatal foodborne pathogen with a putative reservoir for human infection in feedlot cattle. In order to more effectively identify targets for intervention strategies, we aimed to (1) assess the role of various feedlot habitats in E. coli O157:H7 propagation and (2) provide a framework for examining the relative contributions of animals and the surrounding environment to observed pathogen dynamics. To meet these goals we developed a mathematical model based on an ecological metapopulation framework to track bacterial population dynamics inside and outside the host. We used E. coli O157:H7 microbiological and epidemiological literature to …
Modeling On-Farm Escherichia Coli O157:H7 Population Dynamics, P Ayscue, Cristina Lanzas, R Ivanek, Y T. Grohn
Modeling On-Farm Escherichia Coli O157:H7 Population Dynamics, P Ayscue, Cristina Lanzas, R Ivanek, Y T. Grohn
Cristina Lanzas
Escherichia coli O157:H7 is a potentially fatal foodborne pathogen with a putative reservoir for human infection in feedlot cattle. In order to more effectively identify targets for intervention strategies, we aimed to (1) assess the role of various feedlot habitats in E. coli O157:H7 propagation and (2) provide a framework for examining the relative contributions of animals and the surrounding environment to observed pathogen dynamics. To meet these goals we developed a mathematical model based on an ecological metapopulation framework to track bacterial population dynamics inside and outside the host. We used E. coli O157:H7 microbiological and epidemiological literature to …
Prevalence Of Intestinal Parasite Infection In Symptomatic And Asymptomatic Dogs In Southwestern West Virginia: The Potential Impact On Human Health, Tashina Marie Savilla
Prevalence Of Intestinal Parasite Infection In Symptomatic And Asymptomatic Dogs In Southwestern West Virginia: The Potential Impact On Human Health, Tashina Marie Savilla
Theses, Dissertations and Capstones
Most dog owners are unaware of asymptomatic infection and of the possibility of contracting zoonotic parasites from their dogs. We hypothesized that parasite infection is: associated with one or more symptoms; independent of gender and age; and independent of anthelmintic usage. Stool samples were collected from 231 dogs in Kanawha County, West Virginia, and were examined by simple fecal flotation. Parasitic prevalence was found to be 23% for Ancylostoma caninum, 8% for Trichuris vulpis, 7% for Toxocara canis, 4% for Isospora species, and 32.5% overall. There was no significant relationship between infection and gender, nor between infection and symptom for …
Critical Evaluation Of Bacteriophage To Prevent And Treat Colibacillosis In Poultry, G. R. Huff, W. E. Huff, N. C. Rath, A. M. Donoghue
Critical Evaluation Of Bacteriophage To Prevent And Treat Colibacillosis In Poultry, G. R. Huff, W. E. Huff, N. C. Rath, A. M. Donoghue
Journal of the Arkansas Academy of Science
There is a continuing need to find alternatives to antibiotics in animal and human medicine. Bacteriophages are viruses that infect and kill bacteria, with no known activity to plant and animal cells. We have conducted research to critically evaluate the efficacy of bacteriophage to both prevent and treat colibacillosis in poultry. Bacteriophages lytic to an Escherichia coli pathogenic to poultry were isolated from municipal waste water treatment plants and poultry processing plants. Two bacteriophage isolates were selected to use in studies designed to determine the efficacy of these bacteriophage to prevent and treat severe colibacillosis in poultry. Colibacillosis was induced …
Rat Cytomegalovirus Infection Depletes Mhc Ii In Bone Marrow Derived Dendritic Cells, Carmen C. Baca Jones, Craig N. Kreklywich, Ilhem Messaoudi, Jennifer Totonchy, Erin Mccartney, Susan L. Orloff, Jay A. Nelson, Daniel N. Streblow
Rat Cytomegalovirus Infection Depletes Mhc Ii In Bone Marrow Derived Dendritic Cells, Carmen C. Baca Jones, Craig N. Kreklywich, Ilhem Messaoudi, Jennifer Totonchy, Erin Mccartney, Susan L. Orloff, Jay A. Nelson, Daniel N. Streblow
Pharmacy Faculty Articles and Research
While cytomegalovirus (CMV) infects and replicates in a multitude of cell types, the ability of the virus to replicate in antigen presenting cells (APCs) is believed to play a critical role in the viral dissemination and latency. CMV infection of APCs and manipulation of their function is an important area of investigation. CMV down regulation of MHC II is reportedly mediated by the HCMV proteins US2, US3, UL83, UL111a (vIL10) or through the induction of cellular IL10. In this study, we demonstrate that rat CMV (RCMV) significantly reduces MHC II expression by mechanisms that do not involve orthologues of the …