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Leman 2020 Preconference Program

Welcome to the Allen D. Leman Preconference!

This is the program for Saturday, September 19 and Sunday, September 20. You can link to the main conference program via the navigation section below. All presentation times are central daylight time.

Nutrition Workshop: Water, What You Should Know
About the Forgotten Nutrient

Saturday, 8:00−10:00 a.m.

Water represents 80% of the weight of a newborn piglet and is the most essential of all nutrients (carbohydrates, protein, lipids, vitamins, and minerals). Yet in many nutrition audits and routine work, swine professionals overlook assessing the quantity and quality of water delivered to pigs, leading to misunderstanding and mismanagement of this important resource. Therefore, water is known as “the forgotten nutrient.” This workshop will derive from the knowledge of experts in swine nutrition and pork production to answer basic and applied questions about management of water for maximizing the performance of pigs.

Chair: Pedro Urriola, University of Minnesota

Time Title Speaker
8:00–8:25 What makes water so important for pigs, and why do we so often take it for granted? John Patience, Iowa State University
8:25–8:50 Investigating available water used for nursery pigs in Minnesota Brigit Lozinski, University of Minnesota
8:50-9:15 Water medication of growing pigs − sources of between-animal variability in systemic exposure to antimicrobials Steve B. Little, Faculty of Veterinary and Agricultural Sciences, and National Centre for Antimicrobial Stewardship, University of Melbourne, Australia
9:15–9:40 Managing water to maximize performance Nat Stas, Pig Improvement Company
9:40-10:00 Q&A panel discussion  

VDL Workshop:
Molecular Diagnostics Interpretation

Saturday, 8:00 a.m.–12:00 p.m.

Next-generation sequencing (NGS) technologies have revolutionized how we approach disease investigations into farms. In this workshop, we will review how these technologies work and how they can help us investigate viral and bacterial diseases. This will be a hands-on, interactive workshop where participants will learn how to manipulate and interpret sequences and to apply this knowledge to pathogens such as Streptococcus suis.

Chair: Jerry Torrison, University of Minnesota

Time Title Speaker
8:00-8:20 Next-Generation Sequencing (NGS) overview Sunil Mor, University of Minnesota
8:20-8:50 Whole-Genome Sequencing case examples Albert Rovira, University of Minnesota
8:50-10:00 FASTA file manipulation and interpretation workshop Matt Sturos, University of Minnesota
10:00-10:15 Break  
10:15-11:15 Bacterial genotyping case examples VDL Group, University of Minnesota
11:15-11:30 NGS for diagnostic investigations VDL Group, University of Minnesota
11:30-11:55 In situ hybridization (ISH) as a diagnostic and research tool Fabio Vannucci, University of Minnesota


Survival Workshop: Updates and Resources from
the Improving Pig Survivability Project

Saturday, 10:30 a.m.–12:30 p.m.

The overall objective of Improving Pig Survivability project is to identify causative factors contributing to swine mortality in commercial production and to develop and disseminate strategies and information that can be used to maximize pig survivability. This project is a collaborative project among Iowa State University, Kansas State University, and Purdue and is funded by the National Pork Board and the Foundation for Food and Agriculture Research (FFAR). Members of the project team will present research and extension projects funded by this grant.

Chair: Jason Ross, Iowa State University

Time Title Speaker
10:30-10:40 Welcome and introductions Jason Ross, Iowa State University
10:40-10:55 Review of Post-Weaning Mortality in Commercial Swine Production Jordan Gebhardt, Kansas State University
10:55-11:10 Identifying Biological Factors Associated with Pelvic Organ Prolapse: Vaginal Microbiome Zoe Kiefer, Iowa State University
11:10-11:25 Best Practices of Colostrum Management Kara Stewart, Purdue University
11:25-11:40 Effects of breed, parity, and teat location on swine colostrum composition and production traits Marcie Christianson, Iowa State University
11:40-11:55 Quantifying the effect of whole-herd health parameters in wean-to-finish survivability  Edison Magalhaes, Iowa State University
11:55-12:10 Fact Sheets, Videos, and Other Resources Available Through the Project Joel DeRouchey, Kansas State University
12:10-12:30 Discussion All Speakers


Geeks to Geeks: Understanding and Predicting
Between-Farm Disease Transmission

Saturday, 1:00−4:00 p.m. 

A workshop co-hosted by the University of Minnesota Swine Group and the Center for Animal Health and Food Safety (OIE collaborating center for capacity building)

This preconference workshop will focus the current state of knowledge of between-farm disease transmission, with a particular focus on diseases of importance to the US swine industry, such as PRRS and PED. Activities will be composed of presentations and discussions on transmission risk, hands-on exercises on conceptualizing risk through development of causal diagrams, and recent research advances quantifying between-farm spread. Animal movements, windborne transmission, and the use of genetic data will be highlighted. We will end our workshop with an overview of the near real-time risk forecasting pipeline that has been operationalized by the University of Minnesota and discuss how to interpret and respond to risk forecasts. Participants are expected to leave this workshop with enhanced understanding of current advances in this topic and how to apply such knowledge and approaches to refine study designs, outbreak investigations, and risk response measures.

Chair: Kim VanderWaal, University of Minnesota

Time Title Speaker
1:00–1:05 Welcome Kim VanderWaal
1:05–1:25 Epidemiological concepts, measurements of risk, and study designs for evaluating between-farm transmission risk Igor Paploski, University of Minnesota
1:25–2:10 Discussion: Perceptions and current state of knowledge of risk factors and causal diagrams All participants
2:10–2:30 Recent advances in research on between-farm transmission of swine viruses Dennis Makau, University of Minnesota
2:30–2:45 Break  
2:45–3:15 Modeling the risk of windborne transmission of PRRSV between farms Kaushi Kanankege, University of Minnesota
3:15–3:30 Forecasting and responding to between-farm transmission risk Kim VanderWaal / Igor Paploski, University of Minnesota
3:30–3:45 Interpreting and responding to forecasts Igor Paploski, University of Minnesota
3:45–4:00 Discussion: Risk response and mitigation measures All participants


DVM Student Presentations

Saturday, 1:00–2:30 p.m.

This is the fourth year in which DVM students will present on clinical cases and problem-solving skills using innovative thinking. Again this year, students will compete for the Morrison Swine Innovator Prize. The Morrison Swine Innovator Prize honors the legacy of Dr. Bob Morrison by inspiring DVM students to pursue work that matters for the swine industry and in doing so, to follow his mantra of “Learn. Teach. Have fun.”

Chair: Perle Zhitnitskiy, University of Minnesota

Time Title  Speaker
1:00-1:12 Detection and persistence of Mycoplasma hyopneumoniae genetic material in environmental surfaces and the potential for cross-contamination of processing fluids Rachel Weidmayer, University of Minnesota 
1:12-1:24 Effect of particle size and H2O2/PAA concentration on the efficacy of an aerosol decontamination system for items entering swine farms Erin Kettelkamp, University of Illinois
1:24-1:36 Evaluation of a 360-degree camera as an adoptable Precision Livestock Farming technology for use in providing commercial swine veterinary care Allyson Witt, Iowa State University
1:36-1:48 Evaluation of the finishing mortality removal process and factors that contribute to contamination spread Kris Kovach, Iowa State University
1:48-2:00 Preparing fecal microbiota transplant material for administration through a water medicator Anthony Holowka, Lincoln Memorial University
2:00-2:12 The Biosecurity Box - investing in the future of your farm through science, innovation, and ingenuity Zack Talbert, University of illinois
2:12-2:25 Investigation of Lawsonia intracellularis shedding by peri-parturient sows Rachel Patton, The Ohio State University
2:25 Adjourn  



Carlos Pijoan SDEC Symposium:
Tightening Biosecurity in Swine Farms

Sunday, 8:00 a.m.−noon

Preventing disease introduction into swine farms is central to swine production. Over the years, producers have implemented comprehensive biosecurity measures to keep diseases out from farms. However, as investigations from breaks identify gaps in biosecurity programs and new knowledge becomes available, biosecurity measures need to be revised and modified. In this workshop, we will share information learned from disease outbreak investigations, and we will review aspects of biosecurity programs that are often forgotten. Covering such topics as properly using UVC germicidal chambers, outbreaks linked to construction events, the latest on feed investigations, biosecurity protocols in growing pigs, and personalized biosecurity programs based on own risk of disease introduction, we plan to have a rich and enlightening session that will help producers and veterinarians reduce the risk of disease introduction into their farms.

Chair: Cesar Corzo and Montse Torremorell, University of Minnesota

Time Title Speaker
8:00–8:30 Chronicles of outbreak investigations: How they help us improve our biosecurity programs Derald Holtkamp, Iowa State University
8:30–9:00 Relying on UVC germicidal chambers to safely introduce materials into farms: What you need to know Chelsea Ruston, Iowa State University
9:00–9:30 The role of feed in disease outbreaks: Experiences from Manhattan (KS), Vietnam, Brazil, and beyond Cassie Jones, Kansas State University
9:30–10:00 How can feed mitigation strategies and holding times help eliminate the risk of pathogen introduction via feed? Scott Dee, Pipestone Applied Research
10:00-10:15 Break  
10:15–10:45 PRRS breaks associated with construction events − what have we learned Kate Dion, Hanor
10:45–11:15 Investigating PED infections and lessons to improve biosecurity in growing pigs Donna Drebes, Seabord Foods
11:15–11:45 Forecasting PRRSV breaks based on biosecurity risks Gustavo Machado, North Carolina State University
11:45-12:00 Q & A panel discussion All Participants


Research Highlights

Sunday, 1:00−5:00 p.m.

Covering a wide interest spectrum, the Research Highlights session showcases exciting research on production, health, and welfare.

Chair: Maria Pieters and Maxim Cheeran, University of Minnesota





Impact of weaning age on pig performance in a commercial multisite system

Fernando Bortolozzo, Universidade Federal de Rio Grande do Sul


A description and preliminary analysis of a novel production model for nursing piglets

Mark Schwartz, University of Minnesota & Schwartz Farms Inc


Methodologies for in-farm evaluation of alternatives to antibiotics

Michaela Trudeau, University of Minnesota


Phase-feeding: do fewer phases compromise growth performance in grow-finish?

Marianna Boscato Menegat, Holden Farms


Alternative euthanasia techniques in mature sows and boars

Monique Paris-Garcia, North Carolina State University

2:15-2:30 Break  


Are pigs susceptible to SARS-CoV-2?

Joaquim Segales, Universitat Autonoma de Barcelona


Modeling transmission of SARS-CoV-2 in pork processing plants

Kim VanderWaal, University of Minnesota


Viruses don’t read textbooks: New tools in ASFV, PRRSV and SARS-CoV-2 research

Declan Schroeder, University of Minnesota


Efficacy of three innovative bacterin vaccines against experimental infection with Mycoplasma hyopneumoniae

Dominiek Maes, Ghent University


North American Mycoplasma hyopneumoniae MICs

Beatriz Garcia-Morante, University of Minnesota

3:45-4:00 Break  


Antibiotic susceptibility of Actinobacillus pleuropneumoniae, Pasteurella multocida, Streptococcus suis, and Bordetella bronchiseptica isolated from pigs in the United States and Canada, 2016−2019

Mike Sweeney, Zoetis

4:15-4:30 Detection of influenza A virus in swine farm workers before and after work Gustavo Lopez, University of Minnesota
4:30-4:45 Genotypic characterization of swine influenza virus reassortants in vaccinated and nonvaccinated pigs Chong Li, University of Minnesota
4:45-5:00 Estimating farm-level R's for PRRSV using sequence-based transmission trees Nakarin Pamornchainavakul, University of Minnesota

Boehringer Ingelheim Welcome and Poster Reception

Sunday, 5:30–6:30 p.m.

As an industry, our core mission is to feed the world. This year’s Welcome Reception and Poster Session will both support and celebrate that mission through a fundraising effort and special appearance from a contestant of Bravo TV’s Top Chef. 

Second Harvest Heartland recently released new data that suggests a hunger crisis unlike anything seen since the Great Depression is looming due to the COVID-19 pandemic. To address this growing problem, for every registered Leman participant who attends the Welcome Reception and Poster Session, Boehringer Ingelheim will donate $10 to Second Harvest Heartland (up to a maximum donation of $5,000).

As a special treat for attendees, Chef Justin Sutherland, who competed in Top Chef season 16 and heads the kitchen at St. Paul restaurant The Handsome Hog, will share an exclusive pork recipe and “how-to” video. Be sure to attend to hear Justin’s tips and sign up to receive a surprise gift box from Boehringer Ingelheim that will help you cook like a pro at home.

After the conclusion of the Welcome Reception program, be sure to view the latest research in swine health and production at the Poster Session.