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.
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Showing 1 to 20 of 65 for “"swine industry"”.
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Capitalist Pigs: Large-Scale Swine Facilities and the Mutual Construction of Nature and Society
I concluded that large-scale swine facilities, as the dominant manifestation of the current US swine industry, were a temporally emergent phenomenon---they were something new and unforeseen that involved the active participation of many social agents (such as farmers, consumers, laws, neighbors, …
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Suppression of NK cell-mediated cytotoxicity and immunoenhancement of CD40 ligand against porcine reproductive and respiratory syndrome virus
… economically important pathogenics affecting swine industry worldwide. PRRSV is a single-stranded and positive sense RNA virus that belongs to the family of the Arteriviridae (genus Arterivirus). PRRSV has a restricted host and cell tropism, with porcine alveolar macrophages (PAMs) as …
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Perceptions of online swine auction websites: A qualitative study
… grown in popularity, including those within the swine industry. Online swine auctions have existed for a decade and are becoming essential to the success of the modern swine industry. Drawing upon the theory of planned behavior and the diffusion of innovations theory, the purpose of this study …
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Development of a Fluorescence Microsphere Immunoassay for Detection of PRRSV Infection Using Oral Fluid Samples as an Alternative to Serum-based Assays
… be one of the most devastating diseases in the swine industry throughout the world. PRRSV has caused the swine industry more than $600 million a year. PRRSV causes late term abortions, infertility, and severe respiratory disease in nursery and growing/finishing pigs. For effective disease …
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Customer Satisfaction With the Executive Veterinary Certificate Program in Swine Health Management
… Executive Veterinary Certificate Program in Swine Health Management using a methodology developed by Farmer et al. (1991) for use in continuing education and training programs. EVP was developed as a vehicle for veterinarians to attain and retain competence in serving the rapidly changing …
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Surgical castration in piglets: its impacts on pain and affective states
… common husbandry procedure in the United States swine industry, with nearly 100% of males castrated. The procedure is performed primarily to prevent the occurrence of boar taint in the meat and to reduce aggression as the animals age. No research has investigated the impact of surgical castration …
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Impact assessment of energy conservation strategies in swine barns through benchmarking and building simulation
Energy input is vital in every swine operation as it directly affects production performance and overall profitability. With the increasing trend in energy prices and feed costs, the swine industry needed to find ways to improve energy use efficiency in their operations in order to reduce overall …
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Development of an antigen-specific ELISPOT to detect intestinal antibody responses to the swine whipworm, Trichuris suis
The swine whipworm, Trichuris suis, is a parasite present throughout the United States and is of concern to the swine industry worldwide because it is very pathogenic to growing pigs. The economic threat posed by T. suis and other intestinal parasite infections has created a strong interest in the …
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Investigating strategies in training swine caretakers for psychological well-being and Mexican swine caretakers’ attitudes, behaviors, and perceptions toward euthanasia
In the United States (U.S.) swine industry, euthanasia in the breeding herd can be a daily occurrence that may result in caretaker euthanasia-related strain. The U.S. swine industry includes the “how to” and “what to expect” along with “euthanasia considerations related to cost, ease, aesthetics …
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Early detection of Mycoplasma hyopneumoniae in pigs under field conditions
… conditions is of major importance to the modern swine industry worldwide. Through early detection of one of the major pathogens of PRDC, rapid intervention through implementation of vaccination or early treatment with reduced antimicrobial use is possible. Serological monitoring is suitable to …
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Mixed Strain Identification of Porcine Reproductive and Respiratory Syndrome Virus in Multiplexed Samples using Nanopore Sequencing
… to morbidity and mortality in the commercial swine industry across the globe. This highly mutagenic RNA virus causes significant economic losses wherever it is prevalent, leading to $664 million in annual losses in the United States. Unfortunately, the current prevention and diagnostic …
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Virus-like particles as a vaccine against porcine reproductive and respiratory syndrome virus
… infectious disease currently affecting the swine industry worldwide. Several inactivated and modified live vaccines (MLV) have been developed to curb PRRSV infections. The unsatisfactory efficacy and safety of these vaccines, drives for the development of new generation PRRS universal …
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Search for etiology of porcine reproductive and neurologic syndrome: identification and characterization of a novel swine pestivirus
<p>Since 1996, the U.S. swine industry has seen disease outbreaks characterized by reproductive failure at early gestation and/or neurologic disorders in sows and young pigs, which are commonly referred to as "Porcine reproductive and neurologic syndrome (PRNS)". A previously unrecognized small …
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Evaluation of a mechanical foam mitigation device
Foam production in deep-pit swine manure storages has become a significant problem for the swine industry in recent years. Foaming creates management and safety issues for swine producers, including increased risk of flash fires or explosions and reduced manure storage capacity. Due to these …
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Acute and chronic heat stress alters the metabolic profile of skeletal muscle in growing swine
… (HS) causes significant losses to the U.S. swine industry in several production and health areas including efficient lean tissue accretion. Perturbations in skeletal muscle metabolism may participate in this defect. The study objectives were to examine the cellular bioenergetic profile in …
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Characterisation of porcine cytomegalovirus and development as a vaccine vector for classical swine fever virus
Classical swine fever (CSF) is a highly infectious viral disease found in domestic pigs and wild boar populations. Outbreaks have a large economic cost for the swine industry and cause significant morbidity and mortality in pigs. Only one compatible vaccine that allows the differentiation between …
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Purification of the major envelope protein GP5 of porcine reproductive and respiratory syndrome virus (PRRSV) from native virions
… that has been devastating the U.S. and global swine industry for more than twenty years. PRRSV vaccine development is challenging due to virus heterogeneity. Evidence indicates that the major envelope protein, GP5, is the primary target for a subunit vaccine. In native virions GP5 primarily …
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Effects of Heat Stress and Porcine Reproductive and Respiratory Syndrome Virus on Metabolism
… and immune challenge are costly issues to the swine industry causing significant loss in production and health including reduced efficiency in muscle accretion and energy utilization. Alterations to metabolism and immune response may participate in these shortcomings. The study objectives were …
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Pseudorabies Virus Infection of Porcine Peripheral Blood Leukocytes
… virus (PRV) is an alphaherpesvirus of swine that causes significant morbidity in adult populations, morbidity and mortality in young pigs, and economic losses to the swine industry each year. Evidence suggests that PRV causes immunosuppression in infected swine with resultant risk of …
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The effect of interval between inseminations and semen handling on in-vivo and in-vitro fertility of frozen-thawed boar sperm
… production livestock industries. However, the swine industry has not yet been able to capitalize on the potential of frozen-thawed boar sperm (FTS), due to the biological sensitivity of the sperm cells and the lower resulting pregnancy rates and litter sizes. This thesis will outline the …
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