Salmonella: control during the transportation stage
When exposed, the pigs get infected in less time than the length of the transportation and the waiting period (prior to the slaughter) in the abattoir.
Page 8 of articles about biosecurity in Articles
Salmonella prevention & control on pig farms
It is very important to establish a series of preventive measures to prevent a worsening health status with the introduction of new serotypes.
African swine fever - Recognizing the disease in field
The clinical profile seen to date of ASF in Russia and neighboring countries is a typical acute disease. The animals die between 7 and 15 days post-infection and the symptoms observed include fever, huddling together due to cold, and injuries described above.
Filtration systems on commercial sow farms: Technical definitions and application strategies
In high-density swine regions of North America, air filtration is playing an important role in the effort to maintain PRRS free commercial sow herds
The present and future of cryogenically preserved of swine semen
Despite its scarce use in commercial artificial insemination programs (used only in 1% of all inseminated sows) nowadays no one questions the sanitary, economic, and productive advantages of cryogenically preserved semen with respect to fresh or refrigerated semen.
Cleaning and disinfection failures – why do they happen?
Any failure in a cleaning and disinfection programme costs money. This comes from the costs of the programme, the loss of its potential benefits and very probably the costs of disease the failure has allowed to occur. It is also very disappointing for the management and staff of the farm who have done the hard work, and the veterinarian who is trying to ensure healthy efficient production.
Disinfection
In the last article we looked at the need for thorough complete cleaning of a building, room or equipment in any efficient biosecurity programme. If done properly this will reduce the pathogen burden hugely as shown by a typical reduction in bacterial counts by 99%.
PRRS Eradication: A dream or missed opportunity?
Since 1987, Porcine Reproductive and Respiratory Syndrome virus (PRRS) has become a global drain on pig productivity, profitability, and many a producers’ morale. One thing that remains certain is PRRS virus continually finds ways to circumvent our best bio-management efforts. PRRS marches on in a ceaseless continuum of antigenic change making current vaccines and other control techniques of limited value.
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ArticleApplying science to disinfecting
The cleaning and disinfection process are critical steps in any biosecurity program in order to minimize the transmission of diseases. Washing is the most critical step of the entire process. This step will remove over 99% of the microorganisms.
Biosecurity measures to prevent airborne infection in pig farms
Experimentally it is difficult to demonstrate whether a pathogen can be windborne and if so how far.
North American H1N1 influenza update
The usual pig viruses are H1N1, H3N2 and H1N2. The original H1N1 pig viruses have been largely replaced by poultry viruses in pigs. The H3N2 viruses were from humans originally. The H1N2 viruses are re-assortants from human viruses (H and N genes) and poultry viruses.
Biosecurity measures to prevent pig farms being infected by wild animals
Wild animals which may spread infection between farms include wild pigs, birds, flies, rats and mice.
Risk and/or triggering factors of porcine circovirus
Between 1995 and 1997, at the beginning of an epizootic called “maladie de l’amagrissement du porcelet” (MAP), it was observed that the farms that were most affected and that had the most losses, generally presented obvious deviations from what we would consider to be a suitable management of the animals and facilities. This is why Dr. François Madec made a list of management practices with the aim of improving the anomalous situation observed.
An overview of North American PRRS eradication efforts
The use of diagnostics will allow producers and practitioners to work together towards the common goal of PRRS eradication
The Ebola Reston virus in Philippine pigs
On December, the Philippine Department of Agriculture announced that the non-lethal Ebola Reston Virus previously only found in monkeys, had been detected in pigs
Epidemiolology and control of swine influenza
Considering the current situation we are reproducing an article by Tom Alexander previously published by 3tres3.com on 30/dec/2005.
A key factor in the epidemiology of influenza is the ability of the virus to mutate or, when cells are infected by two different strains, to recombine to produce new viruses. Either of these genetic changes results in the repeated appearance of new strains with different immunogenic structures and/or virulence, including their ability to infect different hosts.