Poultry Links

Challenges associated with controlling porcine reproductive and respiratory syndrome virus (PRRSV) have resulted in the increased use of molecular diagnostic tests and sequencing.

The upward trendline of sow mortality needs to be addressed. But until farms have a clearer understanding of why a gilt or sow leaves the breeding herd, progress will be limited.

By Lucina Galina Pantoja, DVM, PhD, Director, US Pork Technical Services, Zoetis

The system used to classify breeding herds according to their PRRSV status has long helped swine veterinarians around the world to track the pathogen’s progress.

US producers and veterinarians have seen an influx of different types of influenza viruses in the last 10 to 15 years, and that is a major reason why influenza is more difficult to control.

It’s not unrealistic to say that if you checked the nasal cavities or tonsils of any group of pigs, you would find Strep suis. It is on virtually every hog farm.

Organizers are excited to hold the 2021 Allen D. Leman Swine Conference in-person as well as virtually, on Sept. 18-21 in St. Paul, Minnesota.

In spite of advanced biosecurity protocols, the porcine reproductive and respiratory syndrome virus (PRRSV) continues to plague global pork producers with unpredictable, seasonal outbreaks.

DISCOVERIES, Issue 28: Vaccination as early as 1 day of age with Fostera® PRRS coupled with the vaccine’s long duration of immunity can help pork producers stem the significant economic losses in growing pigs caused by PRRS.

Water doesn’t get the attention it deserves because it is abundant, easy to access and inexpensive, but that will change in the future, said John Patience, PhD, professor at Iowa State University.

Keeping sow mortality rates in check is critical to a farm’s productivity and cost structure. Yet in recent years, the US pork industry has seen sow mortality rise.

Pigs can contract influenza anytime during the year but more influenza circulates in the fall and winter months. That’s why producers should prepare ahead of the traditional flu season.

Plan for the worst; hope for the best. That’s good advice for many situations but particularly accurate when it comes to African swine fever (ASF).

Researchers at the University of Minnesota have been working on a predictive model to forecast when a disease outbreak may occur on a farm.

DISCOVERIES, Issue 26: It’s well known that modified-live PRRS vaccines help reduce production losses in breeding herds with PRRS. But when the challenge is especially severe, how well and for how long will a PRRS vaccine perform?

Producers and veterinarians should “begin with the end in mind” when it comes to diagnosing disease and planning control strategies, according to Eric Burrough, DVM, PhD, associate professor and diagnostic pathologist at the Iowa State Diagnostic Laboratory.

US producers have seen the devastating impact of African swine fever (ASF) in other countries. The ultimate goal is to keep it out of this country, so industry groups are ramping up preparedness and prevention protocols.

DISCOVERIES, Issue 25: Pathogens commonly associated with swine respiratory disease (SRD) remain highly susceptible to key veterinary antimicrobials,

The findings of a recent study show it’s feasible to obtain data on antimicrobial use while keeping information confidential.

Establishing effective internal biosecurity protocols is critical to breaking the circular spread of influenza and other pathogens between sow farms and growing sites, according to Montserrat Torremorell, DVM, PhD, University of Minnesota.

TOOLBOX, Issue 24: Noel Garbes DVM, senior technical services veterinarian, Zoetis, recently talked with editors of Pig Health Today about measuring modified-live PRRS vaccine efficacy.

Colostrum is vital to piglet survival but managing intake may benefit from some fresh thinking, according to Kara Stewart, associate professor of animal science at Purdue University.

Effective PCV2 control relies on vaccination of healthy pigs before they become infected. This goal cannot be accomplished in unstable herds whose sows give birth to viremic pigs.

A special report from Pig Health Today, “Integrated Flu Management: New Strategies for Control,” reports on key presentations by experts in influenza A virus in swine (IAV-S) and features highlights of a roundtable involving swine practitioners.

Biosecurity has become the all-inclusive protector of swine herd health. But even with all the biosecurity research, protocols and training, disease outbreaks occur regularly. Why is that?

Eliminating porcine reproductive and respiratory syndrome virus (PRRSV) from pigs might not yet be possible, but monitoring tools could help refine a herd’s PRRSV stability.

TOOLBOX, Issue 22: David A. Baumert, DVM, Senior Area Veterinarian, Pork Technical Services, Zoetis, recently talked with editors of Pig Health Today about Mycoplasma elimination vs control.

It appears batch farrowing is making a comeback, according to John Deen, DVM, PhD, distinguished global professor at the University of Minnesota.

DISCOVERIES, Issue 20: Pigs with swine respiratory disease due to Actinobacillus pleuropneumoniae were treated with Excede® for Swine (ceftiofur crystallinefree acid) or enrofloxacin in a comparative challenge study.

Multi-disciplinary collaboration by academia, industry partners and the veterinary community is improving the diagnostics for and management of S. suis.

According to research, swine influenza A viruses have become more complicated in recent years. There is a great deal of diversity within the influenza virus.

The “Five Freedoms” have been the foundation for establishing sound animal welfare practices since they were developed in 1965. Now, more than 50 years later, researchers have additional tools and technologies to take that basic knowledge a step further.

In the end, raising hogs is about producing pork, and continuous success depends on building customers’ trust, listening to expectations and meeting their needs.

Influenza A virus in swine is one of the primary respiratory pathogens challenging swine production systems in the US and around the world.

Biosecurity protocols are critical to keeping the US hog herd healthy, and one of the regular tasks is to disinfect a wide range of supplies entering the farm, but how effective are those protocols?

A romanticized view of the veterinary profession, gleaned from sources like the famous Brit, James Herriot’s novel “All Creatures Great and Small,” doesn’t always mesh with the reality.

Pain management for pigs has always been a challenge, partly because it’s difficult to measure levels of pain and partly because there are no FDA-approved drugs labeled for pain management in pigs.

Piglet processing fluids have been shown to be a practical, time-efficient and affordable diagnostic tool for PRRS, and some indications suggest that PCV2 offers promise as well.

Forecasting swine-disease outbreaks might become a lot like predicting the weather as scientists combine monitoring disease data with computer models.

US pork producers should strive to produce influenza-negative pigs if they want to see the benefits of increased productivity, reduced secondary infections and antibiotic use, reduced influenza dissemination, decreased influenza diversity and reduced risk of zoonotic infections.

The farrowing room is a demanding place — one that needs to accommodate the divergent needs of a 500+-pound sow and her 10, 15 or 20 piglets weighing anywhere from 1.5 to 3 pounds.

COVID-19’s global-altering tentacles reached the 2020 Allen D. Leman Swine Conference scheduled Sept. 19-22. This year’s conference will be held virtually.

The first case of Streptococcus equi subsp. zooepidemicus (Strep. zoo) was identified in the US pig population last fall, and it’s not an organism to be taken lightly.

Sow mortality has been on the rise in the US pork industry, reaching upwards of 15% in many sow-production systems, said Ashley Johnson, DVM, technical services veterinarian with Zoetis.

Whether the issue is an emerging disease such as porcine epidemic diarrhea or the threat of African swine fever, being prepared is key to minimizing the potential impact on the US swine herd and expediting the recovery.

Veterinarians deal with stress under the best circumstances. But in this time of difficult decisions for pork producers and those who service them due to COVID-19, maintaining mental health is even more of a concern.

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.

For both the sow and piglet, an animal that does not perform to its potential or falls behind its counterparts will negatively impact the sow farm’s productivity and profitability.

TOOLBOX, Issue 20: An interview with Eva Jablonski, DVM, PRRS Specialist, Senior Technical Services Veterinarian, Zoetis