PRRSV surveillance. How could we track the progress towards PRRS control in our farms?
How can we monitor our program? Which pigs should be sampled? How many? How often should we sequence the virus/es present in our farms?
Page 4 of articles about PRRS in Articles
Gilt acclimation to PRRS virus (2/2). Steps to meet the challenge
Four veterinarians talk about gilt acclimation: programs they put in place, how the immune status is measured and special management scenarios for introducing those gilts into the main herd.
Gilt acclimation to PRRS virus (1/2). Are there different approaches for different regions?
What is the preferred exposure method?, and the best status of the incoming gilts?, should they be raised on-farm or purchased?, … Veterinary practitioners from Germany, North America, China, and Spain share their opinions.
Are the nurseries becoming complicated? (1/3)
In recent years, pig production has been subject to several changes that have forced farmers to adapt. Some of these changes have a direct impact on the nursery.
How is PRRS perceived across the world? How is it managed?
Key swine veterinary practitioners describe the “PRRS-ception” of this disease in the most important pork producing regions.
Clinical case: Respiratory distress and ill-thrift in post-weaned pigs
There is an increase of respiratory distress and loss of body condition with an increase of mortality in the weaning and growing pigs…
Clinical case: Increase of returns: Management or PRRS?
Returns increase in a PRRS-positive farm in the middle of a census increase plus a change of management in the batch farrowing system, from 3 weeks to 1.
PRRSV sequencing and its use in practice
It is very important to analyze new PRRSV sequences against a broad reference set representing the farm, the system and the region, as well as the sequences of available commercial vaccines (this will make it possible to differentiate between field and vaccine strains).
The Dr. Morrison Swine Health Monitoring Project
Dr. Robert Morrison created the Swine Health Monitoring Project in 2011 and, after his tragic loss, in May 2017 the program was renamed.
Biosecurity in PRRSV control
What is a priority and what is not? It depends on the risks and the PRRSV status of the farm…
The microbiome and viral infections
This article relates different microbiome profiles to greater or lesser severity in clinical signs, lesions and viral load in a co-infection with PRRS and PCV2 viruses, opening a window of opportunity.
Use of processing fluids for PRRSV diagnostics
We propose to use the processing fluids, the liquid accumulated at the bottom of the pail when farmers collect tails and testicles during routine procedures as a sample.
Introduction of replacement gilts to PRRS-positive sow herds
A study was performed including 69 PRRS-positive sow herds with the aim of comparing the use of PRRSV MLV and quarantine facilities with the PRRSV status of replacement gilts at first insemination.
PRRSV surveillance on the breeding herd - is oral fluids from suckling piglets an alternative?
Oral fluids are practical, fast, easy, cost-effective and reliable methods for sampling pig populations, but it has not been easy or practical to obtain such samples from suckling piglets...
Sampling for the detection of agents of the porcine respiratory disease complex: Bronchoalveolar lavage or bronchial scraping?
Many veterinarians find bronchial scraping a less invasive and, above all, simpler sampling method than bronchoalveolar lavage.
PRRSV control using vaccination and optimized management: three case studies
Although the use of vaccination was effective in stabilizing the sows, the results of these case studies emphasized that elimination of PRRSV from the nursery can only be accomplished if vaccination and partial depopulation/ disinfection are supported by strict implementation of all recommended management procedures, including AI/AO.