Diagnosis of porcine circovirus: individual and farm criteria
The aim of this article is to discuss those differentiating topics which are relevant from a practical point of view and which in some way elude the disease's definition.
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Biosecurity I: Relative importance of different precautions
This is the first of a series of articles written by Tom Alexander for www.3tres3.com which we would like to publish again here as a way of paying homage and showing gratitude for his invaluable collaboration.
PRRS Biosecurity
Trailers contaminated with PRRSV can serve as a source of infection for naïve pigs. Therefore, sanitation for livestock trailers and transport vehicles is considered a high priority when it comes to biosecurity practices.
Clinical signs and autopsy findings: can porcine circovirus be diagnosed on the farm?
The autopsy is always an important diagnostic element for the majority of diseases, and this is the same for porcine circovirosis.
Controlling finisher PCV2 mortality: vaccination results (2/2)
Control of PCV2 infections are increasingly through piglet vaccination now that global supplies are increasing.
PRRS control
The presence of subpopulations of exposed and non-exposed sows in chronically PRRSV-infected breeding herds assists in the maintenance of virus circulation in the breeding herd over time.
Controlling finisher PCV2 mortality: infection dynamics (1/2)
Porcine circovirus type 2 (PCV2) infections can be extremely costly causing wasting and increases in mortality.
Epidemiology and transmission of PCV2 and of porcine circovirus
It is assumed that the most probable route of PCV2 transmission is the oronasal tract, which would indicate that horizontal transmission (sow-piglet or piglet-piglet) is a frequent or very frequent occurence
PRRS: Diagnostic testing methods
This article will focus on selected antigen and antibody detection methods based on their application by practicing veterinarians to field cases in the US.
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ArticleDiseases in Europe (2 of 2)
There are consistent strains of Streptococcus suis usually types 1 and 2 across Europe but the other strains vary from country to country.
PRRS: Transmission via indirect routes (2/2)
Migratory waterfowl have been proposed as vectors of PRRSV spread between farms, due to their migratory nature and their tendency to nest on or near to swine farm lagoons
Current sanitary problems in the United States
The focus of swine production in the USA has changed over the last five years. Many businesses in the sector have made radical changes in management both from the reproductive and the sanitary point of view.
Production factors associated with coughing and pneumonia in pigs
In the first of this series of articles on respiratory disease in pigs, the causes of coughing were reviewed. This second article reviews the production factors that are associated with respiratory disease.
Etiology: porcine circovirus type 2 (PCV2)... where is "agent X"?
Porcine circovirus type 2 is a viral agent with a relatively simple structural organization of which there are two distinct genotypes (1 and 2), it is not clear if they have similar virulence. Since some years ago there has been a hypothesis developing that there exists an “agent X” that would play a role as a trigger factor of the disease in 100% of cases.
Diseases in Europe (1 of 2)
Overall, the disease situation in Europe is very similar although there are some countries that have a problem with certain diseases that others do not have