Beer and Bacon conversations: a new session at the Leman swine conference!

The organizing committee of the Allen D. Leman swine conference is proud to present a new session: Beer and Bacon conversations! The goal of this unique session is to invite industry leaders to share personal views and experiences with participants in a fun and relaxed environment.

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This year, we are honored that Dr. Matthew Turner, veterinarian and head of pork live operations at JBS, accepted our invitation.

A graduate of North Carolina State University College of Veterinary Medicine, Dr. Turner joined JBS after being a staff swine veterinarian for Prestage Farms for more than 10 years. He was recognized by the American Association of Swine Veterinarian as the 2014 Swine Practitioner of the year and presented the Dr. Alex Hogg Memorial Lecture at the 2017 AASV annual meeting. Dr. Turner is currently an at large member of the Board of Directors of the Swine Health Information Center (SHIC).

The session will be held at the InterContinental hotel on Sunday, September 16th at 5:15pm. Dr. Marie Culhane will get the conversation started but participation from the audience is more than welcome!

Seating for this event is limited. Do mot miss out by registering today!

Science Page: Effects of gestation pens versus stalls and wet versus dry feed on air contaminants in swine production (Part 2)

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.

This week, we are sharing the second part of a scientific paper from faculty in the School of Public Health at the University of Minnesota, regarding the effect of gestation pens versus group housing and dry versus wet feed on air contaminants. This week we are sharing the second part of the results, you may read the first half here.

Keypoints:

  • Concentration of pollutant levels in the finisher barn were distinctly higher during winter than during summer.
  • Use of a wet feed system reduced respirable endotoxin concentrations substantially.

Objective:

Evolving production practices in the swine industry may alter the working environment. The second part of this research project characterized the wet versus dry feed in finishing on air contaminant concentrations.

Methods:

Eight-hour time-weighted ammonia, hydrogen sulfide, respirable dust, respirable endotoxin, and carbon dioxide concentrations and temperature were measured regularly at stationary locations throughout a year in a facility with parallel finishing rooms using dry and wet feed delivery systems.

Results

All ammonia, respirable dust, and carbon dioxide concentrations were below relevant regulatory and recommended levels . Hydrogen sulfide concentrations were always below the regulatory levels but they reached one of the recommended threshold levels on two occasions in the dry feed room. Respirable endotoxin concentrations regularly exceeded the proposed health-based recommended occupational exposure limit during autumn in the dry feed room and in both rooms during winter.

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In all cases, concentrations varied significantly as a function of time. Concentrations of respirable dust, endotoxin and carbon dioxide were distinctly higher during winter than during summer. Temperatures varied significantly with time, but this difference was driven more by the need of the growing piglets than by seasonal differences.

Conclusions

Use of a wet feed system reduced respirable endotoxin concentrations substantially. Changing ventilation rates in response to seasonal differences influenced contaminant concentrations more than feed type.

You can also read the full article on the journal’s website.

Congratulations to the recipients of the Morrison and Pijoan fellowships!

Please, join us in congratulating this year’s recipient of the Pijoan fellowship, Dr. Gustavo Lopez and our first recipient of the Morrison fellowship, Dr. Alyssa Betlach.

Pijoan fellow

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Gustavo Lopez was born in Caracas, Venezuela. He obtained his DVM in 2010 from the Universidad Central de Venezuela and did two short internships at the University of Minnesota which influenced him into focusing to swine health and production.  Gustavo then moved to Russia to work for the largest meat production company. During his 6-year experience he performed different roles such as wean-to-finish production manager, head of genetic services and head of health services. Currently, Gustavo is pursuing a PhD under the guidance of Dr. Torremorell, focusing our research on swine influenza virus.

“I did not have the opportunity of meeting Dr. Pijoan, but i have seen the legacy he has left in the University of Minnesota swine group and the swine industry itself. For me it is an honor to be awarded this fellowship and i intend to live up to the name, by focusing my research towards finding solutions to economical important swine diseases.”

Morrison fellow

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This year, as a part of the Morrison legacy initiative at the University of Minnesota, we created a fellowship for graduate students in honor of Dr. Bob Morrison.

Alyssa Betlach is a graduate student at the University of Minnesota and part-time associate veterinarian for Swine Vet Center. She is originally from Owatonna, MN where she first gained an interest in swine production and medicine while working on a 1,500 sow farm. Alyssa obtained her DVM from the University of Minnesota this spring, while concurrently pursuing graduate studies and a certificate in swine medicine. Her graduate thesis focuses on the characterization of M. hyopneumoniae in swine herds using molecular diagnostics and epidemiology under the guidance of Dr. Pieters.

“I am truly humbled and honored to receive the Morrison fellowship award. It was an absolute privilege to have known Dr. Morrison and to have received his mentorship throughout my veterinary education. I hope to continue Bob’s legacy through my collaboration with swine veterinarians, academia, and producers towards the development of science driven resources for swine health and production advancement. I am excited to expand my knowledge of the industry and to experience the opportunities made available by the fellowship. Thank you for selecting me as a recipient of this award and to those that have inspired me during my academic and professional endeavors.”

We are truly excited to have such talented graduate students pursuing high quality work to help solve the swine industry challenges!

Science Page: Effects of gestation pens versus stalls and wet versus dry feed on air contaminants in swine production (Part 1)

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.

This week, we are sharing part of a scientific paper from faculty in the School of Public Health at the University of Minnesota, regarding the effect of gestation pens versus group housing and dry versus wet feed on air contaminants. This week we are sharing the first half of the results, join us next week to read the second part.

Keypoints:

  • Pollutant levels increased as ventilation rates decreased during the cold months.
  • Pen housing lead to higher levels of NH3, respirable dust, and endotoxin when compared to stalls.

Objective

Evolving production practices in the swine industry may alter the working environment. This research project characterized the influence of stall versus pen gestation housing on air contaminant concentrations.

Methods

Eight-hour time-weighted ammonia, hydrogen sulfide, respirable dust, respirable endotoxin, and carbon dioxide concentrations and temperature were measured
regularly at stationary locations throughout a year in a facility with parallel gestation stall and open pen housing. Hazard indices were calculated using ammonia,
hydrogen sulfide, and endotoxin concentrations and relevant occupational exposure limits.

air contaminant group housing versus stall

Results

Due to reductions in ventilation rates as outdoor temperatures decreased, season affected pollutant levels more than other factors. Concentrations were greater during the
winter than summer (Figure 1). Ammonia, dust, and endotoxin were 25%, 43%, and 67% higher, respectively, on average, in the room with gestation pens than in the room with stalls. While individual contaminant concentrations were generally below regulatory limits, hazard index calculations suggest that the effects of combined exposures on respiratory health may pose a risk to farm workers. Additionally, elevated levels of respirable endotoxin and hydrogen sulfide were detected during power washing.

Conclusions

Ventilation changes in response to seasonal requirements influenced air contaminant concentrations more than production practices, especially housing type.

You can also read the full article on the journal’s website.

Best of Leman 2017 series #8: B. Thompson – 25 years of experience in sow health and longevity

We launched a new series on the blog in October. Once a month, we are sharing with you a presentation given at the 2017 Allen D. Leman swine conference, on topics that the swine group found interesting, innovative or that lead to great discussions.

Our 8th presentation is by Dr. Bob Thompson, the 2017 recipient of the Science in Practice award, regarding 25 years of experience in sow health and longevity.

To listen to this talk, please click on the image below.

thompson leman 25 years xp sow longevity

Science Page: Herd-level prevalence and incidence of porcine epidemic diarrhea virus (PEDV) and porcine deltacoronavirus(PDCoV) in swine herds in Ontario, Canada

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.

This week, we are sharing a report regarding the prevalence of Porcine Deltacoronavirus and Porcine Epidemic Diarrhea virus in swine herds from Ontario.

Key Points

  • Cumulative incidence of PED and PDCoV in Canada is decreasing according to data coming from the industry for the year 2014, 2015 and 2016.
  • PED showed a cyclical pattern when looking at the number of farms infected. However, PDCoV showed a more erratic pattern with no clear trends.
  • Industry driven disease control programs provide useful information to understand temporal evolution and disease patterns.

The primary goal of this study was to estimate herd-level incidence and prevalence measures for PEDV and PDCoV in swine herds in Ontario (Canada) between January 2014 and December 2016, based on industry data (Ontario Swine Health Advisory Board (OSHAB) Disease Control Program (DCP)).

The full paper was published in the Transboundary and Emerging Diseases journal.

Ajayi PED Deltacoronavirus prevalence in swine herd Ontario

Herd-level incidence risk and rate of two novel porcine coronaviruses (PEDV and PDCoV) in Ontario swine herds between 2014 and 2016, and estimated prevalence of positive cases at the end of each year based on data provided in the Ontario Swine Health Advisory Board (OSHAB) Disease Control Program (DCP) database (average number of herds for 2014–2016 = 1093).

PED showed a cyclical pattern over the three years of the study while PDCoV showed a more erratic pattern. Incidence decreased over time between 2014 and 2016 in both, PED and PDCoV.

You can also read our report on the prevalence of PDCoV in the USA.

IPVS 2022 Minneapolis Bid Update

Thank you for supporting our bid to host the 2022 IPVS in Minneapolis. Unfortunately, Minneapolis was not selected and the 2022 IPVS meeting will take place in Leipzig, Germany.

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We are grateful about the experience this has represented for us, the words of encouragement we have received from many of you and we remain excited about bringing forward a bid for IPVS 2024 in a couple of years at the 2020 IPVS in Brazil. We hope we can count on your support.
In the meantime, we welcome you to the Allen D. Leman swine conference in St. Paul, from September 15th to 18th, 2018.