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PRRS in growing pigs linked to sow outbreaks
Porcine reproductive and respiratory syndrome (PRRS) in growing pigs may play an important role in PRRS outbreaks among sow herds.
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Does PRRS influence weaned pigs’ nutritional response?
In the past 30 years, the growth and body composition of US market hogs has changed dramatically, but the same cannot be said for dietary vitamin and mineral levels.
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Data show filtered farms break less often with PRRS
Nine years of data from the Morrison Swine Health Monitoring Project show farms with air-filtering systems have fewer outbreaks of PRRS than farms without filters.
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Adequate gilt acclimation helps minimize the PRRSV ‘tax’
By Clayton Johnson, DVM Carthage Veterinary Service Integrated Veterinary Network
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Simpler, less costly monitoring methods helping pork industry get a better read on PRRS
Newer testing methods for the PRRS virus are not only simpler and less costly than traditional procedures, they are also helping farms more accurately track the virus through different production...
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Today’s forecast: Scattered PRRS outbreaks with isolated sprinkles of PED
Forecasting swine-disease outbreaks might become a lot like predicting the weather as scientists combine monitoring disease data with computer models.
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Why do summer PRRS breaks last longer than winter breaks?
Summer outbreaks of PRRS take 15 weeks longer to stabilize than PRRS outbreaks beginning in the winter, according to data from the Morrison Swine Health Monitoring Project (MSHMP).
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Lincomix offers flexible dose rate for M. hyo
TOOLBOX, Issue 7: An interview with Thomas Painter, DVM, US Pork Technical Services, Zoetis
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Strategies to weaken PRRS’ grip on US herds
After more than three decades, porcine reproductive and respiratory syndrome (PRRS) remains a serious disease threat to swine units in the US.
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Don’t lose sight of M. hyo while battling other swine pathogens
TOOLBOX, Issue 1: An interview with Lucina Galina Pantoja, DVM, PhD, Director, Swine Technical Services, Zoetis
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Tails or testicles: Which are better for PRRSV monitoring?
Pooled serum samples are a common method to monitor PPRSV in piglets. But this typically involves a limited number of samples, which reduces the sensitivity and makes detection especially challenging...
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SHIC establishes diagnostic strategies to get ahead of disease
If knowledge is power, being prepared is security. Both are drivers behind the Swine Health Information Center’s (SHIC) program to share information among the nation’s four major swine veterinary...
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17 years of detective work, shared experiences helping pork industry get ahead of PRRS
The evolution of knowledge about PRRS is now enabling pork producers and their veterinarians to make headway combatting this difficult and costly disease.
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Herd performance best measure of PRRS vaccine efficacy
TOOLBOX, Issue 9: An interview with Jose Angulo, DVM, PRRS Specialist, Managing Veterinarian, Zoetis
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Processing fluids helping to fine tune diagnostics in swine herds thought to be PRRS-negative
Collecting aggregate samples of processing fluids during tail docking and castration is proving to be an excellent way to monitor herds for porcine reproductive and respiratory disease (PRRS) virus,...
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Mass vaccination with modified-live PRRSV vaccine has no significant production impact in stable herds
Mass vaccination with a modified-live porcine reproductive and respiratory syndrome virus (PRRSV) vaccine has no significant negative impact on production performance in PRRSV-stable breeding herds,...
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Good data key to making sound PRRS decisions
Implementing metrics and utilizing predictive analytics can help pork producers improve their management of PRRS.
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Close to the finish: How grower pigs spread PRRS to sow farms
It’s time to consider the role finishing pigs play in the spread of porcine reproductive and respiratory syndrome virus (PRRSV) to sow farms, according to Montserrat Torremorell, DVM, PhD,...
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‘Nuts n’ tails’ fluid testing is promising, practical method of PRRSV monitoring
Testing fluids obtained from routine castration and tail-docking procedures looks to be a promising, practical and affordable way to improve monitoring for PRRSV.
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Tips for successful oral-fluid sampling for PRRSV
Oral-fluid sampling is an easy way to detect PRRSV or track changes in PRRSV infections in populations — and it can optimize your survey efforts by keeping a few simple tips in mind.
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Modified-live vaccines ‘by far’ most effective tool for combatting PRRS
Modified-live vaccines are “by far” the most effective tool the industry currently has to control PRRSV, said Jay Calvert, PhD, research director, Global Biologicals Research, Zoetis.
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PCR falls short in monitoring PRRSV transport biosecurity
Transport biosecurity is a growing priority as evidence shows that contaminated livestock trailers are a significant risk in spreading viruses between herds.
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Three-phase plan helps seize control of PRRS
By Jose Angulo, DVM Managing Veterinarian, PRRS specialist Pork Technical Services Zoetis
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Barn location can impact PRRS exposure risk
Several factors go into selecting a site for a pork-production unit, but research shows there are a couple more — specifically, terrain and vegetation — that may influence exposure to the porcine...
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Crossing the line: Biosecurity for employee entry is still a work in progress
By Derald Holtkamp, MS, DVM Associate Professor Iowa State University
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Swine Health Monitoring Project expanding but needs more industry participants
The Swine Health Monitoring Project continues to expand but ultimately needs data from 90% of the industry to reach its long-term goal of supporting the response to emerging pathogens, said the late...
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Special edition of Pig Health Today captures presentations from 2-day PRRS conference
Pig Health Today has published a free, 32-page special report, “Framing the Future of PRRS,” with news summaries of eight presentations by veterinarians and scientists specializing in porcine...
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Morrison Swine Health Monitoring Project underscores value of information sharing
Collaboration among veterinarians working with different pork producers is one of the great benefits emanating from the Morrison Swine Health Monitoring Project (MSHMP).
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Breeding sows without CD163 gene might ultimately eliminate PRRS virus
Sows without the CD163 gene are not only resistant to porcine reproductive and respiratory syndrome (PRRS) virus, they also give birth to healthy, normal piglets — a finding that could...
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PRRSV in finishers may contribute to the disease on sow farms
It’s time to consider the role finishing pigs play in the spread of PRRSV to sow farms.
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Semi-annual report indicates progress combatting PRRSV
Producers and veterinarians have reduced the impact of porcine reproductive and respiratory syndrome virus (PRRSV) by more than $83 million over the past 6 years, according to a semi-annual study...
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Pork producers gain ground against PRRS with reduced production losses
Porcine reproductive and respiratory syndrome (PRRS) remains one of the most costly viruses infecting US herds. But an Iowa State University study showed the annual cost of PRRS dropped nearly $100...
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Lessons learned from PRRS outbreak investigations
By Derald Holtkamp, MS, DVM Iowa State University, College of Veterinary MedicineAmes, Iowa It’s been three decades since veterinarians and researchers first recognized porcine reproductive...
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Why PRRS elimination doesn’t work in some herds
Amber Stricker, DVM, discusses reasons why successful PRRS elimination isn’t always achieved in some herds.
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Mycoplasma hyopneumoniae: Elimination or control?
By Clayton Johnson, DVM Carthage Veterinary Service Integrated Veterinary Network
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Taking oral-fluid samples for PRRS: How many and when?
Oral-fluid sampling can provide a simple, reliable way to surveil for porcine reproductive and respiratory syndrome virus (PRRSV), Marisa Rotolo, DVM, of Iowa State University, reported at the 2017...
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What’s the best PRRS strategy for your herd?
Every year, porcine reproductive and respiratory syndrome (PRRS) infects an estimated 25% to 45% of sow herds in the US, according to Clayton Johnson, DVM, Carthage Veterinary Clinic, Carthage,...
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Updated PRRS research book now available online
A new guide on managing porcine reproductive and respiratory syndrome (PRRS) is now available online from the National Pork Board.
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Iowa veterinarian sees benefits to early PRRS vaccination
It takes 3 to 4 weeks for pigs to develop immunity against PRRSV after vaccination with a modified-live vaccine, so vaccinating early gives them the time they need to develop immunity by nursery age,...
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Opportunistic pathogens prey on newly weaned pigs infected with a primary virus
Around 50% of pigs weaned today likely are infected with a primary viral pathogen, like porcine reproductive and respiratory syndrome (PRRS) or swine influenza, reported Cameron Schmitt, DVM,...
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Positive-pressure ventilation makes a comeback to reduce PRRS transmissions
Producers looking for ways to reduce porcine reproductive and respiratory syndrome (PRRS) find positive-pressure ventilation with some modifications works, especially in older building, according to...
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Unloading docks at processing plants appear to be source of PRRSV
Unloading docks at processing plants may be one way that livestock trailers become contaminated with porcine reproductive and respiratory syndrome virus (PRRSV).
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Oropharyngeal swabs offer alternative for PRRSV diagnosis in wean-age pigs
Taking oropharyngeal swabs — that is, samples from the tonsils — appears to be an effective alternative means for detecting PRRSV in wean-age pigs, especially when the prevalence of infection is...
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It’s cold outside. Have you PRRS-proofed your herds?
Cold weather means closer confinement and a greater risk of porcine reproductive and respiratory syndrome virus (PRRSv). A leading PRRS expert recommends ways to keep this common and costly disease...
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