Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 9 of 9 for “"bovine respiratory disease (BRD)"”.
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Effects of Respiratory Vaccination Timing and Hormonal Growth Implant on Health, Performance, and Immunity of Newly Received Stocker Calves
… for energy required for immune response during bovine respiratory disease (BRD) challenge. This study was conducted to determine the effects of pentavalent respiratory vaccination timing with or without a hormonal growth implant on arrival (d 0) on health, performance, complete blood count, and …
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Pasteurella multocida biofilm formation, and the interrelationship of P. multocida with Histophilus somni in a polymicrobial biofilm during bovine respiratory disease
… and zoonotic pathogen that is capable of causing respiratory and multi-systemic diseases, bacteremia, and infections resulting from bite wounds. The glycosaminoglycan capsule (CPS) of P. multocida is an essential virulence factor, protecting the bacterium from host defenses. However, chronic …
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The role of inflammatory factors in the pathogenesis of Mycoplasma bovis pneumonia
Bovine respiratory disease (BRD) is a major cause of morbidity and mortality in cattle production worldwide. Mycoplasma bovis is one of the most important pathogens involved in BRD, and it is associated with severe caseonecrotic bronchopneumonia characterized by the presence of necrotic foci with …
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Field comparison of intranasal and injectable bovine respiratory disease vaccination on beef calf antibody concentrations, average daily gain, and bovine respiratory disease morbidity
Bovine respiratory disease (BRD) is a multifactorial disease complex that is common in feedlot operations, where it causes major economic loss through: reduction in average daily gain, treatment costs, and mortality. Reducing BRD incidence would increase profits to producers, reduce antimicrobial …
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The potential of antimicrobial resistance diagnostics to inform prudent antimicrobial use in feedlot cattle: dynamic models as tools for optimizing interventions in bovine respiratory disease
… systems to control and treat bacterial diseases in food animals. The misuse and overuse of antimicrobial drugs in agricultural settings as elsewhere accelerates the selection of resistant pathogens; emerging antimicrobial resistance (AMR) threatens the therapeutic efficacy of available …
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Diagnostics and risk factors for bovine respiratory disease
… inaccuracy and unknown risk distributions for bovine respiratory disease (BRD) are some of the most important issues faced by the feedlot industry. Given these issues, the overarching themes of this thesis are on the evaluation of point-of-care diagnostic methods for BRD and on summarizing, …
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Mitigation of Bovine Respiratory Disease Complex: Interactions of Physiology, Immunology, Nutrition and Management
… determine the effects of on-arrival vs. delayed respiratory vaccination and exposure to persistently infected bovine viral diarrhea virus challenge on health, gain performance, and physiological and immunological measurements in newly received stocker cattle. Two experiments evaluated timing (d 0 …
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Characterization of the Beta-2 Adrenergic Receptor Mechanism in Bovine Neutrophils, and Some Effects of Inflammatory Stimuli on its Function
The bovine polymorphonuclear leukocyte (neutrophil) is a central component of the acute inflammatory response, and is capable of reacting to a myriad of pro-inflammatory chemical signals that have been characterized in the context of bovine respiratory disease (BRD). Human neutrophils and bovine …
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The Effect of Calf Morbidity on Feedlot Performance and Profitability
… to a hospital pen for treatment if symptoms of Bovine Respiratory Disease (BRD) were observed. In addition, the cattle were weighed on January 6 and again on March 14 to measure performance parameters. Morbidity rates were 31.6%, 36.7% and 78.4% for the CPH, KCA Gold Tag and Sale Barn groups, …