The Guilty Gilt Guide was written with a clear objective – to maximize the whole-herd performance of pig populations by helping gilts to reach their full reproductive potential and produce healthy pigs that reach their full genetic potential during grow-finish.
The open reading frames (ORF)5 represents approximately 4% of the porcine repro- ductive and respiratory syndrome virus (PRRSV)-2 genome (whole-PRRSV) and is often determined by the Sanger technique, which rarely detects >1 PRRSV strain if present in the sample.
Porcine reproductive and respiratory syndrome virus (PRRSV) is an important swine pathogen affecting the global swine industry.
Mycoplasma hyopneumoniae (M. hyopneumoniae) infections continue to result in significant respiratory challenges in the swine industry worldwide. Vaccination for M. hyopneumoniae is commonly utilized, as reduction in bacterial loads and clinical severity in vaccinated pigs have been shown. However, the effect of M. hyopneumoniae vaccination on transmission across different pig populations has been minimally investigated.
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The objectives of this study were to determine PRRSv exposure pattern and virus genetic diversity in growing pigs in European farms; to capture key information about common farm practices on biosecurity, diagnostic monitoring, and control tools and to capture mortality impact at the moment of sampling.
Porcine respiratory and reproductive syndrome virus (PRRSV) is a major swine pathogen responsible for immense economic loss annually. PRRSV first emerged in North America in the late 1980's in near synchrony with its emergence in Europe as the etiological agent of a novel potent swine disease. Not long after, the virus spread to or was detected in most swine rearing countries making it a problem of global relevance. To date, the evolutionary origin of PRRSV is not known although retrospective serologic screening in herds has indicated the virus circulated in pigs for at least several years prior to its official recognition or "emergence". Several hypotheses have been put forth attempting to explain the advent of PRRS however each has its shortcomings.
Porcine respiratory and reproductive syndrome (PRRS) is a viral disease caused by PRRS virus (PRRSV). Major clinical manifestations are reproductive failure in breeding herd and respiratory disease in growing pigs. In PRRS endemic farms, comprehensive approach such as immunization of breeding and/or growing herd, enhanced biosecurity measures, prevention of viral circulation by controlled pig flow management is crucial to minimize the economic impact of PRRS. In 2018, increase of mortality in nursery was observed in a farrow-to-nursery farm in Japan and PRRS was suspected to be involved. This report documents the improvement of mortality in nursery by implementing series of PRRS control measures including PRRS monitoring utilizing oral fluid test, piglet immunization with modified live virus (MLV) vaccine, change of antibiotic treatment regimen and pig flow management.
Porcine Reproductive and Respiratory Syndrome Virus (PRRSV) is one of the leading swine pathogens1. The availability of sequence data from PRRSV from widespread geographic territories has enabled a better understanding of the fight against PRRS.