Porcine Health Management

Chosen Topics:

Virology and Viral Diseases

76 - 90 of 144

A PHENOTYPING METHOD TO IDENTIFY PRRSV RESILIENT SOWS IN ENDEMIC INFECTED FARMS

Porcine reproductive and respiratory syndrome (PRRSV) is a viral disease with negative impact on sow reproduction. An alternative to control this virus is to select animals more resilient to the infection. A key issue to deal with disease resistance is to set up a cost-efficient phenotyping strategy. The aim was to develop a phenotyping criterion to discriminate susceptible from resilient sows in endemic infected farms.
Type
Abstract
Year
2018
Topic
Virology and Viral Diseases

DEVELOPMENT AND VALIDATION OF DIRECT PCR AND REAL-TIME QUANTITATIVE PCR ASSAYS TO DETECT PORCINE CIRCOVIRUS 3 (PCV-3) GENOME

Since the identification of porcine circovirus 2, the Circovirus genus has become of major relevance, especially for its impact in the swine industry. Recently, a new species (Porcine circovirus 3, PCV-3) has been detected in healthy and diseased pigs. Consequently, there is an urgent need for reliable and widely accessible diagnostic tools for both routine diagnosis and research purposes.
Type
Abstract
Year
2018
Topic
Virology and Viral Diseases

THE HIGH WITHIN-EUROPE PORCINE CIRCOVIRUS 3 GENETIC HETEROGENEITY: FULL GENOME SEQUENCING OF FIELDS STRAINS FROM DENMARK, ITALY AND SPAIN

Porcine circovirus 3 (PCV3) is a new species of the Circovirus genus, which has recently been detected in healthy and diseased pigs. Its presence has been reported in different countries of North and South America, Asia and recently also Europe (Poland and Italy). However, little is known about PCV3 molecular epidemiology and transmission patterns in Europe.
Type
Abstract
Year
2018
Topic
Virology and Viral Diseases

PRRSV PREVALENCE AND CIRCULATING PRRS STRAINS IN DUTCH FARMS BASED ON RESPIG® TEST RESULTS

ResPig®program includes biannual serological and saliva-PCR PRRS tests of all production groups. PRRSv is further characterized upon request. PRRSv prevalence and dynamics is summarized in the database.
Type
Abstract
Year
2018
Topic
Virology and Viral Diseases

DIAGNOSTIC IN PORCINE REPRODUCTIVE AND RESPIRATORY SYNDROME VIRUS INFECTIONS – A CASE REPORT

Porcine Reproductive and Respiratory Syndrome Virus (PRRSV) is distributed worldwide. Both types PRRSV-1 and PRRSV-2 are endemic in Germany, where clinical outbreaks are usually caused by PRRSV-1. The present case report describes diagnostic challenges at a PRRSV infected farm.
Type
Abstract
Year
2018
Topic
Virology and Viral Diseases

FIRST ATYPICAL PORCINE PESTIVIRUS ASSOCIATED OUTBREAK OF CONGENITAL TREMOR IN SWITZERLAND

In recent years, several outbreaks of congenital tremor in piglets associated with atypical porcine pestivirus (APPV) infection have been described in Europe. Until recently, the associated mortality has been reported being low, and only limited information is available regarding pathogenesis, prevalence and epidemiology of APPV.
Type
Abstract
Year
2018
Topic
Virology and Viral Diseases

SEROPREVALENCE OF ATYPICAL PORCINE PESTIVIRUS IN A SUBCLINICALLY INFECTED CLOSED PIG HERD

In recent years, several cases of congenital tremor in piglets have been associated with atypical porcine pestivirus (APPV). Only limited information is available about prevalence at herd level and the potential source of introduction. Therefore, the aim of this study was to determine the within-herd prevalence of APPV infection in a subclinically infected sow herd in Switzerland and to analyse associations between serological results and the age of the pigs, litter number and days after last insemination.
Type
Abstract
Year
2018
Topic
Virology and Viral Diseases

EVALUATION OF SERUM VITAMIN B9 AND B12 CONCENTRATIONS IN PIGS INFECTED WITH PORCINE REPRODUCTIVE AND RESPIRATORY SYNDROME VIRUS

Vitamin (Vit.) B9 and B12 are essential components for genomic stability. Serum concentrations of both vitamins are altered in human patients with viral infections. Decreased Vit.B12 concentrations have been described in patients with enveloped RNA virus infections, an investigation in pigs infected with a DNA virus (porcine circovirus type 2) showed no effect on serum Vit.B9 or B12 concentrations (unpublished data).
Type
Abstract
Year
2018
Topic
Virology and Viral Diseases

NORTHERN IRISH PORCINE REPRODUCTIVE AND RESPIRATORY SYNDROME VIRUS (PRRSV) TYPE 1 ISOLATES EVIDENCE CONSIDERABLE VARIABILITY IN THE OPEN READING FRAME 5 (ORF5)

PRRSv is widely spread around Northern Ireland infecting most breeding and growing pig farms. PRRSv vaccines are used in 90 to 95% of infected sow herds, while less than 15% of weaning-growing pigs receive vaccines. PRRSv is frequently involved in porcine respiratory disease complex. PRRSv infection rarely causes severe clinical signs, and a remarkable number of famers reject the use of vaccines, arguing the perceived very mild-to-nill contribution of PRRSv to respiratory problems and performance drops.
Type
Abstract
Year
2018
Topic
Virology and Viral Diseases

ERADICATION OF PEDV INFECTION FROM 7 FARROW TO WEAN FARMS IN CROATIA

Late January 2017, 3 finisher farms, reported an outbreak of profuse yellowish diarrhea, quickly spreading. PEDv was diagnosed after 7 days, with PCR on feces and intestines. In the next 10 days the virus spread to 7 farrow to wean farms. The finisher farms suffered high morbidity (approx. 95%), no increase in mortality. The farrow to wean farms suffered 100 % morbidity in all categories, 55%-75% mortality in 1-9 days old sucklings, no increase in mortality in other categories.
Type
Abstract
Year
2018
Topic
Virology and Viral Diseases

GENETIC DIVERSITY OF PORCINE REPRODUCTIVE AND RESPIRATORY SYNDROME VIRUS (PRRSV) ISOLATES IN THE NETHERLANDS FROM 2014-2016

Porcine reproductive and respiratory syndrome (PRRS) is the most significant swine disease worldwide and is endemic in many countries, including the Netherlands. It is caused by the PRRS virus which shows remarkable genetic variation. Epidemiological and molecular analysis of circulating PRRS-viruses is key to modern farm management and essential to review current diagnostic tools. Since the early nineties no epidemiological or molecular study has been performed on circulating PRRS-viruses in the Netherlands. To determine the genetic diversity of PRRS isolates in the Netherlands, the sequences of circulating field viruses were compared.
Type
Abstract
Year
2018
Topic
Virology and Viral Diseases

THE PREVALENCE OF PRRS NEGATIVE SPF HERDS IN DENMARK IS CONTINUOUSLY INCREASING

The Danish SPF system is a production pyramid consisting of 215 breeding and multiplier herds (Red SPF) and 2501 production units (Blue SPF). 78% of the Danish sows participate in the SPF system. The SPF system is built on the principle, that health status is declared for the connected herds. Health status of pigs is taken into account in case of trading and transport. Health Status Management keeps track of the health status of all Danish SPF herds. PRRS1 and PRRS2 are declared SPF diseases, as are Mycoplasma hyopneumoniae, App, Swine Dysentery, Atrofic Rhinitis, Mange and Lice.
Type
Abstract
Year
2018
Topic
Virology and Viral Diseases

PROCESSING FLUIDS FOR PRRSV MONITORING AND SURVEILLANCE SYSTEMS

PRRSV is a serious and expensive problem, costing USA swine industry more than $ USD 1 billion per year. A critical step to control and eliminate PRRSV in production systems is to interrupt the transmission cycle in breeding herds, Thus, effective PRRSV monitoring is essential to measure progress towards PRRS control and elimination efforts. The objective of this study is to describe the use of “processing fluids” to strengthen monitoring and surveillance systems in breeding herds.
Type
Abstract
Year
2018
Topic
Virology and Viral Diseases

COMPARISON OF THE EFFICACY OF CIRCOVAC® VACCINE WITH ANOTHER COMMERCIAL VACCINE IN THE PCV2D CHALLENGE MODEL

PCVD (Porcine Circovirus Diseases) remain a common problem in most of swine farms. Strains of different genotypes of PCV2 are circulating in the herds. Circovac® is a whole PCV2 virus inactivated vaccine. The aim of the study was to compare the efficacy of Circovac® against PCV2d genotype with other vaccine mostly used in EU.
Type
Abstract
Year
2018
Topic
Virology and Viral Diseases

DETECTION OF PORCINE CIRCOVIRUS 3 IN PIGS AFFECTED BY DIFFERENT DISEASES AND PATHOLOGICAL CONDITIONS

Porcine circovirus 3 (PCV3) is a novel species of circovirus detected in several countries around the world during the last two years. PCV3 has been found in several tissue samples or sera from pigs with different clinical presentations, as well as in healthy animals. The present study aimed to assess whether PCV3 was present in sera of pigs suffering from different pathological conditions as well as its coexistence with other pathogens.
Type
Abstract
Year
2018
Topic
Virology and Viral Diseases