Tag: swine

Drs. Betlach and Allerson discuss their paper on Processing the Litter-ature

The Swine Disease Eradication Center is proud to present another episode of “Processing the Litter-ature”: a podcast in which peer-reviewed papers are docked, clipped and supplemented with a field perspective.

Drs. Alyssa Betlach and Matt Allerson discuss the paper “Natural transmission and detection of Mycoplasma hyopneumoniae in a naïve gilt population.”

Describing and Estimating Porcine Reproductive and Respiratory Syndrome Virus (PRRSV) in Alternative Pig Farms (APFs)

This is our Friday rubric: every week a new Science Page from the Bob Morrison’s Swine Health Monitoring Project. The previous editions of the science page are available on our website.

Miranda B. Medrano, Marie C. Culhane, and Cesar A. Corzo of the University of Minnesota take a look at herd seroprevalence of PRRSV in alternative pig farms in Minnesota.

Continue reading “Describing and Estimating Porcine Reproductive and Respiratory Syndrome Virus (PRRSV) in Alternative Pig Farms (APFs)”

Porcine Deltacoronavirus Occurrence in the United States Breeding Herds since Its Emergence in 2014

This week, we are sharing a new publication from the Morrison Swine Health Monitoring Project, led by Dr. Mariana Kikuti, regarding the incidence of Porcine Deltacoronavirus in the United States since 2014. The article is available in open-access on the journal’s website.

Methods

  • Porcine Deltacoronavirus (PDCoV) emerged in Feb 2014 as pig farmers and veterinarians were still learning how to manage PEDv.
  • MSHMP database comprises more than 60% of the US breeding herds
  • Data from Jan 2015 to Dec 2023 was analyzed
  • Farms voluntarily self-reported PDCoV status
  • An outbreak was defined by clinical signs and increased mortality in piglets as well as a positive PDCoV PCR from affected piglets

Results

  • A total of 244 PDCoV outbreaks have been reported to MSHMP (186 sites from 22 production systems in 16 U.S. states)
  • Most sites (140/244) reported only one outbreak
  • The interval between outbreaks had a median of 2.11 years for sites with more than one outbreak.
  • Most cases were found in the South and the Midwest (as described by the US Census regions)
Read the full article
PDCoV yearly cumulative incidence in U.S. breeding herds between 2015 and 2023

Abstract

PDCoV, an enveloped RNA virus, causes atrophic enteritis in neonatal piglets, leading to diarrhea, malabsorption, dehydration, and death. The study aims to fill the gap in the current epidemiological information about PDCoV in the U.S. pig population after its emergence in 2014. Data from the Morrison Swine Health Monitoring Project (MSHMP) between January 2015 and December 2023 were analyzed, representing approximately 60% of the U.S. breeding herd. Participating herds report weekly PDCoV health status. In total, 244 PDCoV outbreaks occurred in 186 sites from 22 production systems across 16 states. Case counts peaked during winter, and incidence ranged from 0.44% in 2017 to 4.28% in 2023. For sites that experienced more than one PDCoV outbreak during the study period, the interval between outbreaks was a median of 2.11 years. The South and Midwest regions reported the majority of cases. In 2017, a shift in the spatial distribution of cases from the Midwest to the South was observed. The findings underscore the importance of continued monitoring and strengthened control measures to mitigate the impact of PDCoV in U.S. breeding herds

Lessons learned from an international education and outreach program pilot on ASF

This is our Friday rubric: every week a new Science Page from the Bob Morrison’s Swine Health Monitoring Project. The previous editions of the science page are available on our website.

Researchers Rachel Schambow, Colin Yoder, Maria Sol Perez Aguirreburualde, and Andres Perez from the Center for Animal Health and Food Safety at the University of Minnesota share details about “Vets to Vets: African Swine Fever”, a workshop that brought together experts on ASF.

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Best of Leman: Mark Schwartz – How is the lack of pig robustness affecting our farms?

This is our most popular series on the blog. Once a month, we are sharing with you a presentation given at the Allen D. Leman swine conference, on topics that the swine group found interesting, innovative or that lead to great discussions.

You can find all of the presentations selected from previous conferences on the blog here.

Continue reading “Best of Leman: Mark Schwartz – How is the lack of pig robustness affecting our farms?”