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https://www.readbyqxmd.com/read/29786119/full-length-and-defective-enterovirus-g-genomes-with-distinct-torovirus-protease-insertions-are-highly-prevalent-on-a-chinese-pig-farm
#1
Yan Wang, Wen Zhang, Zhijian Liu, Xingli Fu, Jiaqi Yuan, Jieji Zhao, Yuan Lin, Quan Shen, Xiaochun Wang, Xutao Deng, Eric Delwart, Tongling Shan, Shixing Yang
Recombination occurs frequently between enteroviruses (EVs) which are classified within the same species of the Picornaviridae family. Here, using viral metagenomics, the genomes of two recombinant EV-Gs (strains EVG 01/NC_CHI/2014 and EVG 02/NC_CHI/2014) found in the feces of pigs from a swine farm in China are described. The two strains are characterized by distinct insertion of a papain-like protease gene from toroviruses classified within the Coronaviridae family. According to recent reports the site of the torovirus protease insertion was located at the 2C/3A junction region in EVG 02/NC_CHI/2014...
May 21, 2018: Archives of Virology
https://www.readbyqxmd.com/read/29785280/long-duration-of-immunity-against-a-type-1-heterologous-prrs-virus-challenge-in-pigs-immunised-with-a-novel-prrs-mlv-vaccine-a-randomised-controlled-study
#2
Jeremy Kroll, Mike Piontkowski, Poul H Rathkjen, Francois-Xavier Orveillon, Christian Kraft, Oliver G Duran
Background: Porcine reproductive and respiratory syndrome virus (PRRSV) is widespread in commercial pig farms worldwide, and has a significant cost to the swine industry. Herd owners need a vaccine that will confer long-lasting immunity to prevent PRRSV infection and transmission. The studies described here evaluated duration of immunity conferred by a European-derived PRRS (isolate 94,881) modified live virus (MLV) vaccine, Ingelvac PRRSFLEX® EU, at 20, 24, and 26 weeks post-vaccination...
2018: Porcine Health Management
https://www.readbyqxmd.com/read/29785263/methodologies-on-estimating-the-energy-requirements-for-maintenance-and-determining-the-net-energy-contents-of-feed-ingredients-in-swine-a-review-of-recent-work
#3
REVIEW
Zhongchao Li, Hu Liu, Yakui Li, Zhiqian Lv, Ling Liu, Changhua Lai, Junjun Wang, Fenglai Wang, Defa Li, Shuai Zhang
In the past two decades, a considerable amount of research has focused on the determination of the digestible (DE) and metabolizable energy (ME) contents of feed ingredients fed to swine. Compared with the DE and ME systems, the net energy (NE) system is assumed to be the most accurate estimate of the energy actually available to the animal. However, published data pertaining to the measured NE content of ingredients fed to growing pigs are limited. Therefore, the Feed Data Group at the Ministry of Agricultural Feed Industry Centre (MAFIC) located at China Agricultural University has evaluated the NE content of many ingredients using indirect calorimetry...
2018: Journal of Animal Science and Biotechnology
https://www.readbyqxmd.com/read/29784969/north-american-domestic-pigs-are-susceptible-to-experimental-infection-with-japanese-encephalitis-virus
#4
So Lee Park, Yan-Jang S Huang, Amy C Lyons, Victoria B Ayers, Susan M Hettenbach, D Scott McVey, Kenneth R Burton, Stephen Higgs, Dana L Vanlandingham
Japanese encephalitis virus (JEV) is a mosquito-borne flavivirus that is capable of causing encephalitic diseases in children. While humans can succumb to severe disease, the transmission cycle is maintained by viremic birds and pigs in endemic regions. Although JEV is regarded as a significant threat to the United States (U.S.), the susceptibility of domestic swine to JEV infection has not been evaluated. In this study, domestic pigs from North America were intravenously challenged with JEV to characterize the pathological outcomes...
May 21, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29783968/investigating-porcine-parvoviruses-genogroup-2-infection-using-in-situ-polymerase-chain-reaction
#5
Dinko Novosel, Daniel Cadar, Tamás Tuboly, Andreja Jungic, Tomasz Stadejek, Tahar Ait-Ali, Attila Cságola
BACKGROUND: Porcine parvovirus 2 (PPV2) was detected in swine serum without showing any relationship with disease. The emergence of the virus seemed to be a unique event until other genetically highly similar parvoviruses were identified in China and, later in 2012, the presence of the virus was also described in Europe. PPV2 is widely distributed in pig populations where it is suspected to be involved in respiratory conditions, based on its frequent detection in lung samples. In order to investigate the potential pathogenic involvement of PPV2, 60 dead pigs were examined from two farms...
May 21, 2018: BMC Veterinary Research
https://www.readbyqxmd.com/read/29782837/phenylalanine-and-tryptophan-stimulate-gastrin-and-somatostatin-secretion-and-h-k-atpase-activity-in-pigs-through-calcium-sensing-receptor
#6
Yihan Xian, Xiuying Zhao, Chao Wang, Cuicui Kang, Liren Ding, Weiyun Zhu, Suqin Hang
In rodents and humans, aromatic amino acids increase gut hormone secretion and H+ -K+ -ATPase activity by modulating calcium-sensing receptor (CaSR). However, the role of CaSR and its related signaling molecules in amino acid-induced gut hormone secretion in swine has not been investigated. Here, we examined whether a CaSR-dependent pathway modulated gastrin and somatostatin (SS) secretion and H+ -K+ -ATPase activity in pigs. Perfusion of pig stomach tissues in the presence of extracellular 80 mM l-phenylalanine (Phe) or 20 mM l-tryptophan (Trp) and a CaSR agonist cinacalcet triggered gastrin and SS secretion and H+ -K+ -ATPase activity (P < 0...
May 18, 2018: General and Comparative Endocrinology
https://www.readbyqxmd.com/read/29782054/assessment-of-porcine-endogenous-retrovirus-transmission-across-an-alginate-barrier-used-for-the-encapsulation-of-porcine-islets
#7
Claire Crossan, Nizar I Mourad, Karen Smith, Pierre Gianello, Linda Scobie
BACKGROUND: Subcutaneous implantation of a macroencapsulated patch containing human allogenic islets has been successfully used to alleviate type 1 diabetes mellitus (T1DM) in a human recipient without the need for immunosuppression. The use of encapsulated porcine islets to treat T1DM has also been reported. Although no evidence of pathogen transfer using this technology has been reported to date, we deemed it appropriate to determine if the encapsulation technology would prevent the release of virus, in particular, the porcine endogenous retrovirus (PERV)...
May 21, 2018: Xenotransplantation
https://www.readbyqxmd.com/read/29778207/evolution-in-europe-of-african-swine-fever-genotype-ii-viruses-from-highly-to-moderately-virulent
#8
Gallardo C, Nurmoja I, Soler A, Delicado V, Simón A, Martin E, Perez C, Nieto R, Arias M
Since its arrival in the Caucasus and Russia in 2007, African swine fever virus (ASFV) has spread widely and has now affected the EU countries of Estonia, Latvia, Lithuania, Poland and, more recently, the Czech Republic and Romania. The ever-increasing evidence of seropositive wild boar in certain areas suggests that some animals may be surviving for some time or could even be recovering from the disease. This could be due to acquired immunity after the primary infection and/or the presence of related viruses of reduced virulence...
June 2018: Veterinary Microbiology
https://www.readbyqxmd.com/read/29778201/acclimation-strategies-in-gilts-to-control-mycoplasma-hyopneumoniae-infection
#9
REVIEW
Laura Garza-Moreno, Joaquim Segalés, Maria Pieters, Anna Romagosa, Marina Sibila
Mycoplasma hyopneumoniae (M. hyopneumoniae) is the primary causative agent of enzootic pneumonia (EP), one of the most economically important infectious disease for the swine industry worldwide. M. hyopneumoniae transmission occurs mainly by direct contact (nose-to-nose) between infected to susceptible pigs as well as from infected dams to their offspring (sow-to-piglet). Since disease severity has been correlated with M. hyopneumoniae prevalence at weaning in some studies, and gilts are considered the main bacterial shedders, an effective gilt acclimation program should help controlling M...
June 2018: Veterinary Microbiology
https://www.readbyqxmd.com/read/29778199/disinfection-of-transboundary-animal-disease-viruses-on-surfaces-used-in-pork-packing-plants
#10
Peter W Krug, Talina Davis, Catherine O'Brien, Michael LaRocco, Luis L Rodriguez
In the event of an intentional or accidental incursion of a transboundary animal disease (TAD) virus into the US, a major concern to the meat industry would be the potential contamination of packing plants by processing infected animals. TAD agents such as foot and mouth disease virus (FMDV), African swine fever virus (ASFV) and classical swine fever virus (CSFV) are found in swine products such as blood and feces and are present in the tissues of infected animals. To test the disinfection of TAD viruses in a pork-packing environment, a previously developed disinfection assay was used to test two biocides currently used by industry sanitarians, against TAD viruses dried on industry relevant surfaces in saline or swine products...
June 2018: Veterinary Microbiology
https://www.readbyqxmd.com/read/29778193/single-nucleotide-variants-in-innate-immune-genes-associated-with-salmonella-shedding-and-colonization-in-swine-on-commercial-farms
#11
Margaret H Ainslie-Garcia, Abdolvahab Farzan, Mohsen Jafarikia, Brandon N Lillie
Foodborne human salmonellosis is an important food safety concern worldwide. Food-producing animals are one of the major sources of human salmonellosis, and thus control of Salmonella at the farm level could reduce Salmonella spread in the food supply system. Genetic selection of pigs with resistance to Salmonella infection may be one way to control Salmonella on swine farms. The objective of this study was to investigate the association between genetic variants in the porcine innate immune system with on-farm Salmonella shedding and Salmonella colonization tested at slaughter...
June 2018: Veterinary Microbiology
https://www.readbyqxmd.com/read/29778187/sensitivity-of-african-swine-fever-virus-asfv-to-heat-alkalinity-and-peroxide-treatment-in-presence-or-absence-of-porcine-plasma
#12
I D Kalmar, A B Cay, M Tignon
African swine fever virus (ASFV) is a highly resistant viraemic virus with devastating socio-economic impact. Its present epidemiology in Eastern Europe and Russia warrants increased biosecurity measures in Western Europe. This includes proactive precautions on traffic of pork products within and between areas that are officially free from ASF. Namely, delayed notification of clinical signs or introduction of a low-virulent strain in ASF-free areas could result in presence of ASFV in veterinary inspected pork and pork by-products...
June 2018: Veterinary Microbiology
https://www.readbyqxmd.com/read/29778179/recombinant-adenovirus-delivered-soluble-cd163-and-sialoadhesin-receptors-protected-pigs-from-porcine-reproductive-and-respiratory-syndrome-virus-infection
#13
Wenlong Xia, Zhi Wu, Changming Guo, Shanyuan Zhu, Xinyu Zhang, Xiaoli Xia, Huaichang Sun
Porcine reproductive and respiratory syndrome (PRRS) is one of the most important swine diseases affecting pig industry worldwide. Sialoadehesin (Sn) and CD163 are the two specific receptors for PRRSV infection of porcine alveolar macrophages. Our previous study showed that the soluble Sn receptor Sn4D-Fc and soluble CD163 receptor SRCR59-Fc expressed by the two recombinant adenoviral (rAd) vectors have an additive anti-PRRSV effect in vitro. In the present study, rAd-Sn4D-Fc and rAd-SRCR59-Fc were inoculated into pigs, and the efficient expression of Sn4D-Fc and SRCR59-Fc proteins was detected by ELISA...
June 2018: Veterinary Microbiology
https://www.readbyqxmd.com/read/29778154/effects-of-chlortetracycline-cu-and-their-combination-on-the-performance-and-microbial-community-dynamics-in-swine-manure-anaerobic-digestion
#14
Rui Wang, Junya Zhang, Jibao Liu, Dawei Yu, Hui Zhong, Yawei Wang, Meixue Chen, Juan Tong, Yuansong Wei
Swine manure was typical for the combined pollution of heavy metals and antibiotics. The effects of widely used veterinary antibiotic chlortetracycline (CTC), Cu and their combination on swine manure anaerobic digestion performance and microbial community have never been investigated. Thus, four 2L anaerobic digestion reactors were established including reactor A (control), B (CTC spiked by 0.5g/kg dry weight, dw), C (Cu spiked by 5g/kg dw) and D (combination of CTC, 0.5g/kg dw, and Cu, 5g/kg dw), and dynamics of bacterial and archaeal community structure was investigated using high throughput sequencing method...
May 2018: Journal of Environmental Sciences (China)
https://www.readbyqxmd.com/read/29776610/comparative-evaluation-of-immune-responses-of-swine-in-prrs-stable-and-unstable-herds
#15
Michele Drigo, Enrico Giacomini, Massimiliano Lazzaro, Daniela Pasotto, Dania Bilato, Jessica Ruggeri, Maria Beatrice Boniotti, Giovani Loris Alborali, Massimo Amadori
Porcine Reproductive and Respiratory Syndrome (PRRS) is an elusive model of host/virus relationship in which disease is determined by virus pathogenicity, pig breed susceptibility and phenotype, microbial infectious pressure and environmental conditions. Successful disease control in PRRS-endemic Countries corresponds to "stability", i.e. a condition with no clinical signs of PRRS in the breeding-herd population and no viremia in weaning-age pigs. The aim of this work was to compare the profile and time-course of humoral and cell-mediated immunity in stable and unstable herds, respectively...
June 2018: Veterinary Immunology and Immunopathology
https://www.readbyqxmd.com/read/29774989/first-report-of-wild-boar-susceptibility-to-porcine-circovirus-type-3-high-prevalence-in-the-colli-euganei-regional-park-italy-in-the-absence-of-clinical-signs
#16
Giovanni Franzo, Claudia Maria Tucciarone, Michele Drigo, Mattia Cecchinato, Marco Martini, Alessandra Mondin, Maria Luisa Menandro
The genus Circovirus includes one of the most relevant infectious agents affecting domestic pigs, Porcine circovirus type 2 (PCV-2). The wild boar susceptibility to this pathogen has also been demonstrated although the actual epidemiological role of wild populations is still debated. In recent times, a new circovirus, Porcine circovirus type 3 (PCV-3), has been discovered and reported in the presence of several clinical conditions. However, no information is currently available about PCV-3 circulation and prevalence in wild boar...
May 18, 2018: Transboundary and Emerging Diseases
https://www.readbyqxmd.com/read/29774857/influenza-d-virus-infection-in-feral-swine-populations-united-states
#17
Lucas Ferguson, Kaijian Luo, Alicia K Olivier, Fred L Cunningham, Sherry Blackmon, Katie Hanson-Dorr, Hailiang Sun, John Baroch, Mark W Lutman, Bianca Quade, William Epperson, Richard Webby, Thomas J DeLiberto, Xiu-Feng Wan
Influenza D virus (IDV) has been identified in domestic cattle, swine, camelid, and small ruminant populations across North America, Europe, Asia, South America, and Africa. Our study investigated seroprevalence and transmissibility of IDV in feral swine. During 2012-2013, we evaluated feral swine populations in 4 US states; of 256 swine tested, 57 (19.1%) were IDV seropositive. Among 96 archived influenza A virus-seropositive feral swine samples collected from 16 US states during 2010-2013, 41 (42.7%) were IDV seropositive...
June 2018: Emerging Infectious Diseases
https://www.readbyqxmd.com/read/29773876/early-salmonella-typhimurium-infection-in-pigs-disrupts-microbiome-composition-and-functionality-principally-at-the-ileum-mucosa
#18
Héctor Argüello, Jordi Estellé, Sara Zaldívar-López, Ángeles Jiménez-Marín, Ana Carvajal, Mª Asunción López-Bascón, Fiona Crispie, Orla O'Sullivan, Paul D Cotter, Feliciano Priego-Capote, Luis Morera, Juan J Garrido
Salmonella is a major foodborne pathogen which successfully infects animal species for human consumption such as swine. The pathogen has a battery of virulence factors which it uses to colonise and persist within the host. The host microbiota may play a role in resistance to, and may also be indirectly responsible from some of the consequences of, Salmonella infection. To investigate this, we used 16S rRNA metagenomic sequencing to determine the changes in the gut microbiota of pigs in response to infection by Salmonella Typhimurium at three locations: ileum mucosa, ileum content and faeces...
May 17, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29772742/characterization-of-antimicrobial-resistance-determinants-and-class-1-and-class-2-integrons-in-salmonella-enterica-spp-multidrug-resistant-isolates-from-pigs
#19
Héctor Argüello, Beatriz Guerra, Irene Rodríguez, Pedro Rubio, Ana Carvajal
Antimicrobial resistance (AMR) and Salmonella spp., are primary concerns in public health. The present study characterizes the AMR determinants of 62 multi-drug resistant (MDR) Salmonella enterica spp., isolates from swine, which were obtained between 2004⁻2006, a major source of human salmonellosis. The AMR determinants were investigated by PCR, checking the presence of class 1 and class 2 integrons and 29 resistance genes. Genes sul1 , blaTEM1 -like, aadA2 , tet (A), and dfrA12 were more prevalent ( p < 0...
May 16, 2018: Genes
https://www.readbyqxmd.com/read/29772224/pharmacokinetics-and-skin-tolerability-of-intracutaneous-zolmitriptan-delivery-in-swine-using-adhesive-dermally-applied-microarray-adam
#20
Joe Nguyen, Hayley Lewis, Ashley Queja, Anh Ngoc Diep, Guillaume Hochart, Mahmoud Ameri
Adhesive Dermally-Applied Microarray (ADAM) is a new drug delivery system that uses microprojections (340 μm long) for intracutaneous drug self-administration. We formulated zolmitriptan, a well-accepted and commonly used migraine medication, for administration using ADAM. In vivo studies were conducted in female prepubescent Yorkshire pigs using ADAM 1.9 mg zolmitriptan, applied to the inner thigh and left in place for 1 hour. Pharmacokinetic studies showed that the ADAM 1.9 mg zolmitriptan delivered with high efficiency (85%) and high absolute bioavailability (77%)...
May 14, 2018: Journal of Pharmaceutical Sciences
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