Open Access. Powered by Scholars. Published by Universities.®

Life Sciences Commons

Open Access. Powered by Scholars. Published by Universities.®

Articles 1 - 30 of 70

Full-Text Articles in Life Sciences

Black Bear Population Health Monitoring In The Southeast, Kathleen Elizabeth Riese Aug 2023

Black Bear Population Health Monitoring In The Southeast, Kathleen Elizabeth Riese

Masters Theses

Recent growth of the American black bear (Ursus americanus) population in the southeast raises concerns about the potential spread of density-dependent diseases among bears, particularly sarcoptic mange. However, research on the health of bears in this area is limited. We analyzed samples from 169 bears in the region. We performed Knotts tests, skin scrapes, fecal floats; Canine adenovirus (CAV), canine parvovirus (CPV), canine distemper virus (CDV), and Toxoplasma gondii serology, Trypanosoma, Rickettsia rickettsii, and apicomplexan PCR, and identified ecto- and endoparasites found grossly or histologically. We found that 69% (63 of 91) had microfilaria; genetic analysis identified …


Predicting Immunization Status At Arrival In Tennessee Stocker Calves, Claire E. Hunkler Dec 2022

Predicting Immunization Status At Arrival In Tennessee Stocker Calves, Claire E. Hunkler

Masters Theses

Bovine respiratory disease is a multifaceted disease with agent, host, and environmental factors. Stocker calves are at high risk of contracting the disease through many stressors like weaning, transportation, commingling, etc. The purpose of this project was to test if externally observed physical characteristics of calves on arrival at a stocker facility can be used to predict calfhood vaccination status determined based on antibody titer levels. Knowledge of highly correlated characteristics could allow stocker operators to reduce the occurrence of BRD through targeted management strategies, thus lowering morbidity, mortality, and treatment costs. Ear notches, blood, and visual characteristics were collected …


Volume 17, Number 1 (Spring/Summer 2021), Ut Institute Of Agriculture Jul 2021

Volume 17, Number 1 (Spring/Summer 2021), Ut Institute Of Agriculture

Tennessee Land, Life and Science Magazine

Issue Highlights:

  • The four pillars of the Institute of Agriculture
  • Alumna forges partnership amid Waldo Canyon fire
  • Fishery biologists revive a river


Prevalence Of Rats And Rodent Borne Pathogens Across Post-Katrina New Orleans, Bruno Marco Ghersi Dec 2020

Prevalence Of Rats And Rodent Borne Pathogens Across Post-Katrina New Orleans, Bruno Marco Ghersi

Doctoral Dissertations

Disasters are happening at an increasingly higher rate and intensity a trend that is expected to continue as more humans migrate to coastal urban areas. Disasters, and as importantly, disaster recovery can affect how native and pest populations will recover. My aim was to improve understanding of disease risk by evaluating the socioecological conditions that have shaped commensal rat recovery and distribution, as well as the pathogens they carry, across New Orleans after Hurricane Katrina. I first estimated relative abundance and distribution of commensal rats from rodent trapping conducted between mid-2014 and early-2017 across 96 sites in 10 areas of …


Volume 16, Number 1 (Spring/Summer 2020), Ut Institute Of Agriculture Jul 2020

Volume 16, Number 1 (Spring/Summer 2020), Ut Institute Of Agriculture

Tennessee Land, Life and Science Magazine

Issue Highlights:

  • The four pillars of the Institute of Agriculture
  • Alumna forges partnership amid Waldo Canyon fire
  • Fishery biologists revive a river


Volume 16, Number 2 (Fall/Winter 2020), Ut Institute Of Agriculture Jan 2020

Volume 16, Number 2 (Fall/Winter 2020), Ut Institute Of Agriculture

Tennessee Land, Life and Science Magazine

Issue Highlights:

  • The four pillars of the Institute of Agriculture
  • Alumna forges partnership amid Waldo Canyon fire
  • Fishery biologists revive a river


Volume 15, Number 1 (Spring/Summer 2019), Ut Institute Of Agriculture Jul 2019

Volume 15, Number 1 (Spring/Summer 2019), Ut Institute Of Agriculture

Tennessee Land, Life and Science Magazine

Issue Highlights:

  • The four pillars of the Institute of Agriculture
  • Alumna forges partnership amid Waldo Canyon fire
  • Fishery biologists revive a river


Volume 15, Number 2 (Fall/Winter 2019), Ut Institute Of Agriculture Jan 2019

Volume 15, Number 2 (Fall/Winter 2019), Ut Institute Of Agriculture

Tennessee Land, Life and Science Magazine

Issue Highlights:

  • The four pillars of the Institute of Agriculture
  • Alumna forges partnership amid Waldo Canyon fire
  • Fishery biologists revive a river


Volume 14, Number 1 (Spring/Summer 2018), Ut Institute Of Agriculture Jul 2018

Volume 14, Number 1 (Spring/Summer 2018), Ut Institute Of Agriculture

Tennessee Land, Life and Science Magazine

Issue Highlights:

  • The four pillars of the Institute of Agriculture
  • Alumna forges partnership amid Waldo Canyon fire
  • Fishery biologists revive a river


Volume 14, Number 2 (Fall/Winter 2018), Ut Institute Of Agriculture Jan 2018

Volume 14, Number 2 (Fall/Winter 2018), Ut Institute Of Agriculture

Tennessee Land, Life and Science Magazine

Issue Highlights:

  • The four pillars of the Institute of Agriculture
  • Alumna forges partnership amid Waldo Canyon fire
  • Fishery biologists revive a river


Histomonas Elisa, Jessica L Martinez Nov 2017

Histomonas Elisa, Jessica L Martinez

EURēCA: Exhibition of Undergraduate Research and Creative Achievement

Histomonas meleagridis is a protozoan parasite of avians and is the causative agent in Histomonosis, commonly known as Blackhead Disease. Current methods for diagnosing the presence of H. meleagridis are limited to parasite culture or Polymerase Chain Reaction (PCR) to amplify target DNA. This project aims to develop an enzyme-linked immunosorbent assay (ELISA) for faster and more sensitive diagnosis of Histomonas infections. Cultures of H. meleagridis parasites were purified, and surface antigens were extracted using a spectrum of chemical solutions. The various antigen solutions were subjected to an ELISA, with serum from birds immunized for H. meleagridis as positive controls. …


Volume 13, Number 1 (Spring/Summer 2017), Ut Institute Of Agriculture Jul 2017

Volume 13, Number 1 (Spring/Summer 2017), Ut Institute Of Agriculture

Tennessee Land, Life and Science Magazine

Issue Highlights:

  • The four pillars of the Institute of Agriculture
  • Alumna forges partnership amid Waldo Canyon fire
  • Fishery biologists revive a river


Volume 13, Number 2 (Fall/Winter 2017), Ut Institute Of Agriculture Jan 2017

Volume 13, Number 2 (Fall/Winter 2017), Ut Institute Of Agriculture

Tennessee Land, Life and Science Magazine

Issue Highlights:

  • The four pillars of the Institute of Agriculture
  • Alumna forges partnership amid Waldo Canyon fire
  • Fishery biologists revive a river


Follicular Dynamics In Insulin Resistant Mares, Julio Cesar Prado Dec 2016

Follicular Dynamics In Insulin Resistant Mares, Julio Cesar Prado

Masters Theses

Obesity and insulin resistance have been linked to prolonged interovulatory period, aberrations in the estrous cycle, and continuous reproductive activity during the non-breeding season. EMS has been determined to influence the intrafollicular environment of mare ovaries. In humans, insulin resistance has been linked to polycystic ovaries as part of Polycystic Ovarian Syndrome (PCOS). A study was conducted to determine 1) the impact of insulin resistance on follicle growth and size at ovulation, and 2) whether predicted ovulatory follicles respond to hCG administration in Insulin-resistant (IR) mares. Mares were selected for the study based on insulin sensitivity and separated into an …


Volume 12, Number 1 (Spring/Summer 2016), Ut Institute Of Agriculture Jul 2016

Volume 12, Number 1 (Spring/Summer 2016), Ut Institute Of Agriculture

Tennessee Land, Life and Science Magazine

Issue Highlights:

  • The four pillars of the Institute of Agriculture
  • Alumna forges partnership amid Waldo Canyon fire
  • Fishery biologists revive a river


Identifying Genetic Factors In Streptococcus Uberis That Enable Evasion Of The Host Immune Response, Alexis Christine Burnham May 2016

Identifying Genetic Factors In Streptococcus Uberis That Enable Evasion Of The Host Immune Response, Alexis Christine Burnham

Chancellor’s Honors Program Projects

No abstract provided.


Expansion, Characterization, Differentiation, And Visualization Of Mc 3t3-E1 Preosteoblast Cells: An In Vitro Model To Study Bone Healing And Stem Cell-Mediated Regeneration, Jakob T. Samsel, Madhu Dhar, Austin Bow, Tom Masi May 2016

Expansion, Characterization, Differentiation, And Visualization Of Mc 3t3-E1 Preosteoblast Cells: An In Vitro Model To Study Bone Healing And Stem Cell-Mediated Regeneration, Jakob T. Samsel, Madhu Dhar, Austin Bow, Tom Masi

Chancellor’s Honors Program Projects

No abstract provided.


Volume 12, Number 2 (Fall/Winter 2016), Ut Institute Of Agriculture Jan 2016

Volume 12, Number 2 (Fall/Winter 2016), Ut Institute Of Agriculture

Tennessee Land, Life and Science Magazine

Issue Highlights:

  • The four pillars of the Institute of Agriculture
  • Alumna forges partnership amid Waldo Canyon fire
  • Fishery biologists revive a river


Health Assessment Of Two Reintroduced Populations Of American Martens (Martes Americana) In Michigan, Maria Catherine Spriggs Dec 2015

Health Assessment Of Two Reintroduced Populations Of American Martens (Martes Americana) In Michigan, Maria Catherine Spriggs

Doctoral Dissertations

The American marten (Martes americana) was extirpated from Michigan during the early-20th century due to loss of vast areas of mature conifer forest and unregulated trapping. The species was reintroduced into the Upper Peninsula (UP) and Northern Lower Peninsula (NLP) during the mid-20th century. While the American marten population in the UP has grown and is doing well, the population in the NLP has been less successful. The reasons for the limited success of the NLP population are unknown, but may include lack of suitable habitat, limited reproductive success, poor genetic diversity, disease, or negative environmental impacts. American …


Epidemiology Of Select Species Of Filarial Nematodes In Free-Ranging Moose (Alces Alces) Of North America, Caroline Mae Grunenwald Dec 2015

Epidemiology Of Select Species Of Filarial Nematodes In Free-Ranging Moose (Alces Alces) Of North America, Caroline Mae Grunenwald

Doctoral Dissertations

North American moose (Alces alces) are a culturally and economically valued species. Recent population declines raise concern for the survivability of this natural resource. The Minnesota population has experienced the most dramatic decline, with a 60% loss in total numbers since 2006. Nematode parasites, particularly some species of filarids, are important pathogens of moose and could be contributing to morbidity and mortality. This study investigates the eco-epidemiology of two filarial parasites of moose: Rumenfilaria andersoni and Elaeophora schneideri. By surveying cervid species from six U.S. states, we discovered R. andersoni was present in moose from all sample locations …


Protective Effect Of Anti-Suam Antibodies On Streptococcus Uberis Mastitis, Raúl A. Almeida, Oudessa Kerro Dego, María E. Prado, Susan I. Headrick, Mark J. Lewis, Lydia J. Siebert, Gina M. Pighetti, Stephen P. Oliver Nov 2015

Protective Effect Of Anti-Suam Antibodies On Streptococcus Uberis Mastitis, Raúl A. Almeida, Oudessa Kerro Dego, María E. Prado, Susan I. Headrick, Mark J. Lewis, Lydia J. Siebert, Gina M. Pighetti, Stephen P. Oliver

Animal Science Publications and Other Works

In the present study, the effect of anti-recombinant Streptococcus uberis adhesion molecule (SUAM) antibodies against S. uberis intramammary infections (IMI) was evaluated using a passive protection model. Mammary quarters of healthy cows were infused with S. uberis UT888 opsonized with affinity purified anti-rSUAM antibodies or hyperimmune sera. Non-opsonized S. uberis UT888 were used as a control. Mammary quarters infused with opsonized S. uberis showed mild-to undetectable clinical symptoms of mastitis, lower milk bacterial counts, and less infected mammary quarters as compared to mammary quarters infused with non-opsonized S. uberis. These findings suggest that anti-rSUAM antibodies interfered with infection of …


Absorption And Utilization Of Choline And Vitamin B12 In Lactating Dairy Cows Using Different Delivery Methods, Virginia Maria Artegoitia Etcheverry Dec 2014

Absorption And Utilization Of Choline And Vitamin B12 In Lactating Dairy Cows Using Different Delivery Methods, Virginia Maria Artegoitia Etcheverry

Doctoral Dissertations

Choline and vitamin B12 are essential nutrients for growth and performances of production animals. However, both nutrients are extensively degraded during digestion in the rumen. This thesis comprised three experiments. First, four cows equipped with a rumen cannula and catheters in the portal vein and a mesenteric artery received a post-ruminal bolus of: 1) cyanocobalamin (CN-CBL) alone (0.1 g) [gram], 2) CN-CBL (0.1 g) + casein (10 g) or 3) CN-CBL (0.1 g) + whey proteins (10 g). After the bolus, blood samples were taken until 24 h [hour] post-bolus. The intestinal absorption of CN-CBL was greater when the vitamin …


Volume 11, Number 1 (Spring/Summer 2014), Ut Institute Of Agriculture Jul 2014

Volume 11, Number 1 (Spring/Summer 2014), Ut Institute Of Agriculture

Tennessee Land, Life and Science Magazine

Issue Highlights:

  • The four pillars of the Institute of Agriculture
  • Alumna forges partnership amid Waldo Canyon fire
  • Fishery biologists revive a river


The Spread And Potential Control Of Disease Across The Domestic Cattle-Wildlife Interface, Rachel Jackson May 2014

The Spread And Potential Control Of Disease Across The Domestic Cattle-Wildlife Interface, Rachel Jackson

Chancellor’s Honors Program Projects

No abstract provided.


Volume 10, Number 2 (Fall/Winter 2014), Ut Institute Of Agriculture Jan 2014

Volume 10, Number 2 (Fall/Winter 2014), Ut Institute Of Agriculture

Tennessee Land, Life and Science Magazine

Issue Highlights:

  • The four pillars of the Institute of Agriculture
  • Alumna forges partnership amid Waldo Canyon fire
  • Fishery biologists revive a river


Volume 10, Number 1 (Spring/Summer 2013), Ut Institute Of Agriculture Jul 2013

Volume 10, Number 1 (Spring/Summer 2013), Ut Institute Of Agriculture

Tennessee Land, Life and Science Magazine

Issue Highlights:

  • The four pillars of the Institute of Agriculture
  • Alumna forges partnership amid Waldo Canyon fire
  • Fishery biologists revive a river


Natural Dog Training Provides New Ways To Understand And Manage Stresses Of Canine Assistance Work, Jean Marie Thompson, Kevin Behan Apr 2013

Natural Dog Training Provides New Ways To Understand And Manage Stresses Of Canine Assistance Work, Jean Marie Thompson, Kevin Behan

International Veterinary Social Work Summit

Limiting dis-stress experienced by assisted therapy, crisis response, and combat comfort dogs is a concern of handlers, organizations, and researchers. Dogs communicate feelings via body language especially muzzle expressions and physical behaviors that people and other animals recognize. Projection of dis-stress by dogs negatively impacts therapeutic interactions, distracting and detracting from beneficial flow of feelings. Dog welfare is risked. Behan's Natural Dog Training ("NDT") presents an alternative paradigm for understanding dog dis-stress. NDT is an energy flow model that is different from but compatible with positive reinforcement techniques and attuned to Adrian Bejan's constructal law of nature, a physics principle. …


The Link, One Health, And Social Capital: A New Strategy For Empathy Education And Social Work, Phil Arkow Apr 2013

The Link, One Health, And Social Capital: A New Strategy For Empathy Education And Social Work, Phil Arkow

International Veterinary Social Work Summit

For 150 years, animal welfare and veterinary advocates have promoted a doctrine that animal welfare will be enhanced by teaching children kindness to animals and responsible animal husbandry practices. However, these efforts have been stymied by societal and professional perceptions that “animal” causes are less worthy than “human” services. Ten significant challenges have made it difficult, if not impossible, to gain access to educators’ curricula and social work training. In a society that continues to place humans’ interests above animals’, it is time to try a new approach that focuses on the human benefits of animal welfare. In particular, a …


Compassion Fatigue Or Ethics Exhaustion?, Sonnya Dennis Apr 2013

Compassion Fatigue Or Ethics Exhaustion?, Sonnya Dennis

International Veterinary Social Work Summit

Compassion Fatigue or Ethics Exhaustion?

In veterinary practice, the diagnosis is critical for proper treatment. Different diseases can cause the same symptoms, and while palliative treatment is sometimes necessary, ideally we want prevention or cure. In this talk, I will speak from the experiential perspective of companion animal general practice about the very real and common problem of compassion fatigue, and why it is different from, and can mask, what I call Ethics Exhaustion. In brief, I define Ethics Exhaustion as the feeling of being powerless to even try to do what you think that you ethically should do, because …


Cruelty Intervention Advocacy, A New Approach To Animal Hoarding Interventions, Allison Cardona Apr 2013

Cruelty Intervention Advocacy, A New Approach To Animal Hoarding Interventions, Allison Cardona

International Veterinary Social Work Summit

Animal hoarding affects thousands of animals and people across the United States. Conservative estimates place the number of new cases at two to three thousand per year, though no centralized database exists, so the full scope of the problem is unknown. Unlike intentional, single acts of cruelty, animal hoarding impacts a large number of animals over a prolonged period of time. Any type of animal can be hoarded, though the majority of hoarding situations involve cats and dogs, with numbers ranging from a few dozen to several hundred and even thousands of animals living in a single location. Accumulation of …