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 10 of 10 for “"porcine reproductive and respiratory syndrome (PRRS)"”.
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Virus-like particles as a vaccine against porcine reproductive and respiratory syndrome virus
Porcine reproductive and respiratory syndrome (PRRS) is the most significant 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 …
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Analysis of Porcine Immunity in PRRS Virus
… swine producers, veterinary practitioners, and animal health researchers have been economically and scientifically challenged by porcine reproductive and respiratory syndrome (PRRS). This disease is caused by a recently emerged virus of swine (PRRSV) that has been classified in the …
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The Genetic Impact of Stress Responsiveness and Disease Susceptibility in Pigs
… immune system, cortisol (CORT) concentrations, and performance measures. Overall, there was a significant breed x age interaction for CORT, immunoglobulin G, phagocytosis (PHAGO), chemotaxis (CHTX), and performance measures. The experiment in chapter 2 was designed to determine the impact of …
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Molecular characterization of the major envelope protein of porcine reproductive and respiratory syndrome virus (PRRSV) and evaluation of its use for a diagnostic assay, vaccine development, and the examination of quasispecies evolution
Porcine reproductive and respiratory syndrome (PRRS) is a viral disease that has devastated the global swine industry since the mid 1980s. Although modified live vaccines (MLVs) are typically used for the prevention of clinical disease, they are not always fully effective. Additionally, acute PRRS …
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Molecular bases for modulation of host cellular responses by porcine reproductive and respiratory syndrome virus non-structural protein 11
Porcine reproductive and respiratory syndrome (PRRS) is a swine disease causing severe economic losses in the pork industry worldwide. In the present study, the modulation of host cell responses by PRRS virus (PRRSV) has been investigated. Non-structural protein 11 (Nsp11) contains a …
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Impact of the implementation of the mcrebel management program in a commercial breed-to-wean unit following an infection with porcine reproductive and respiratory syndrome
… management program on pre-weaning mortality and timing of increase in the percentage of litters testing negative for the Porcine Reproductive and Respiratory Syndrome (PRRS) virus under commercial conditions. The study was carried out at a breed-to-wean facility that had recently tested …
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Serologische Untersuchungen von Sauenmilch und Ferkelblut als mögliche Alternative zur Blutuntersuchung von Muttersauen im Rahmen der Bestandsdiagnostik
… pigs, especially from sows, is very difficult and causes considerable stress for the animals. From July 2002 until May 2003 milk and blood samples from 180 sows and three piglets per litter were taken in a livestock of 128 sows and about 1000 fattening pigs. All samples were tested by ELISA for …
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Studies on the Interaction between Porcine Plasmacytoid Dendritic Cells and Porcine Reproductive and Respiratory Syndrome Virus
For over 20 years, porcine reproductive and respiratory syndrome (PRRS) has been the most troubling disease afflicting the pork industry. The main reason for this dissertation is that the pathogen responsible for this disease, PRRS virus (PRRSV), has developed the ability to subvert the immune …
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Novel approaches towards vaccine developments against porcine circovirus type 2 and porcine reproductive and respiratory syndrome virus
Porcine circovirus type 2 (PCV2) is the causative agent of porcine circovirus-associated disease (PCVAD). Porcine reproductive and respiratory syndrome (PRRS) is caused by PRRS virus (PRRSV). Both PCV2 and PRRSV have caused devastating diseases in the swine industry worldwide, resulting in immense …
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Effects of plant extracts on immune function and disease resistance in pigs
… antioxidant, antibacterial, anti-inflammatory, and perhaps immunoregulatory effects. The 3 studies below demonstrate the anti-inflammatory effects of PE in vitro and the effect of PE on immune function and disease resistance of pigs in vivo. The first study evaluated the effects of 7 PE …