Louping ill virus (LIV) is a tick borne disease that causes mortality in red grouse, an economically important game bird of British uplands. The aim of this thesis is to extend previously published models of LIV , to consider the potential impact of different management strategi…
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Antimicrobial selection decisions in veterinary medicine are currently based on formalized training, proper interpretation of antimicrobial susceptibility testing (AST) reports, practice experience and review of peer-reviewed publications. In veterinary medicine, there is a lack…
Coccidiosis is an economically important enteric disease of poultry caused by protozoan parasites belonging to the genus Eimeria . Drugs are most commonly used to control coccidiosis. Widespread usage of anticoccidial drugs in the field has resulted in development of drug resist…
Turkey parvovirus belongs to the family Parvoviridae, subfamily Parvovirinae, genus parvovirus. It was identified in turkeys with enteritis for the first time in 1983. Since then there were no further reports on turkey parvovirus in the United States (US) until 2008 when Zsak et…
The objectives of the current observational study were to characterize the correlation among total serum Ca, non-esterified fatty acids (NEFA), β-hydroxybutyrate (BHBA) and haptoglobin concentrations and daily rumination time (DRT) and activity of periparturient cows, and to det…
Migratory waterfowl and shorebirds routinely carry LPAIVs within their intestinal tract year round. Infection with more than one strain of AIV is possible and common. As a result of direct or indirect contact with AIV infected waterfowl, other avian species can contract the viru…
Tetratrichomonas gallinarum and Cochlosoma anatis are flagellated parasites whose host range include commercial turkeys. Found in the intestinal tract of infected birds, these protozoa have been suggested to be enteric pathogens. However, the pathogenicity of T. gallinarum and C…
Histomoniasis, commonly known as blackhead disease, has increased in prevalence due to the regulatory ban of prophylactics and therapeutics within the past 30 years. The objective of this thesis was to evaluate the efficacy of selected dietary chemoprophylaxis candidates as well…
A quantitative risk assessment (QRA) study was conducted in the Malaysia-Thailand-Myanmar (MTM) peninsular to assess the likelihood of an introduction of FMD through importation of livestock. The simulation yielded the most-likely prevalence at 8%. On average, each livestock in …
It is currently believed that the only remaining foci of rinderpest (RP) circulation in the world are situated in the Somali eco-system which encompasses the Somali inhabited areas of Kenya and Ethiopia and the central and southern regions of Somalia. In order to delineate the e…
Browse condensed tannin plays a role in ruminant protein by-pass. Herbaceous, native legumes as a supplement to grass pastures may improve goats' nutrition. Three legume species native to north central Texas, Acacia angustissima var. hirta, Desmodium paniculatum, and Lespedeza p…
Humans with diabetes mellitus are two to five times more likely to develop cardiovascular disease and do so at a much younger age than non-diabetics. This study utilized the Syrian F1B hamster, a model of human atherosclerosis, to: (1) determine whether one intraperitoneal injec…
This thesis developed participatory approaches to infectious disease modelling as tools to promote the well-being of pastoral communities. The models contributed to their well-being through policy reform on the control of livestock disease control in pastoral areas. The particip…
Contraction in striated muscle is regulated by Ca+2 through the tropomyosin (Tm)-troponin (Tn) thin filament associated regulatory complex. The Tn complex is composed of three subunits: troponin C (TnC), troponin I (TnI), and troponin T (TnT). Troponin T has been proposed as a m…
Transmissible spongiform encephalopathies (TSEs) are an insidious group of neurodegenerative diseases that can replicate exponentially, exhibit strain variability, mutate, cross species barriers, and adapt to new host species. Chronic wasting disease (CWD), is an emerging TSE of…
Pasteurella multocida, the causative agent of avian cholera, has been recognized as one of the important infectious agents for avian species. Despite vaccination efforts, avian cholera outbreaks still occur in the commercial poultry. However, the manner in which birds become inf…
The effect of different levels of virus neutralizing maternally derived antibodies (MA) on protection against Infectious Bursal Disease Virus (IBDV) was investigated. Broiler chicks originating from three breeder flocks were used. Chicks from the above flocks were challenged at …
(Co)variance components and genetic parameters for Holstein first and all lactations mature equivalent milk and reproductive traits in the first four lactations were estimated by multiple-trait animal model using Method R procedures. The objectives of this study were to determin…
Turkeys have to overcome several challenges early in life, including exposure to pathogens and difficulty with the transition from yolk as a nutrient source to CHO dietary sources. Probiotics are thought to help alleviate these symptoms in the post-hatch poult, but any beneficia…