ADSA 2017 Program Book

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Sunday, June 25 (Pre-conference)

ADSA Lactation Symposium (full day, additional fee required)

Mammary gland physiology is paramount to the ability of a mammary gland to synthesize milk during lactation. The goal of this symposium is to examine the endocrinological and nutritional mechanisms that govern milk synthesis and secretion, along with mammary gland development. Furthermore, we aim to investigate how genetics and the microbiome influence mammary gland function. Finally, it is important to understand how other mammalian lactation systems work and how these may be relative to the dairy industry. This symposium will be followed by the Dale Bauman Recognition Symposium.

Speaker, Affiliation
Presentation Title
Laura Hernandez, University of Wisconsin
Adam Lock, Michigan State University
Dietary fatty acids and fatty acid blends effects on nutrient digestion and milk fat synthesis
John Cant, University of Guelph
Amino acid transport and the mammary gland
Sha Tao, University of Georgia
The influences of heat stress on bovine mammary gland
Barry Bradford, Kansas State University
The disparate impacts of inflammatory signaling pathways on lactogenesis, galactopoiesis, and cessation of lactation
Lorraine Sordillo, Michigan State University
Oxylipids and dairy cow immunology

Workshop: Nutrition Models (full day, additional fee required, limited seating)

The National Animal Nutrition Program (NANP) workshop will consist of a series of 6 lessons that will illustrate in simple terms how mathematical models are constructed, evaluated, and applied toward problems in animal nutrition. Several modeling approaches are covered, but particular emphasis is given to dynamic, mechanistic models. Lessons include demonstration and hands-on exercises to maximize attendee participation and retention of material. The workshop will give attendees a basic fluency in mathematical modeling and, in so doing, advance their use of models in nutrition research.


Each lesson is 50 min long, including approximately 10 min for the demonstration exercise and 20 min for the hands-on exercise. Welcome and closing remarks are approximately 10 min each.

  • Welcome—Speaker and workshop chair: John McNamara (Washington State University)
  • Lesson 1: Purposes and types of models: Mark Hanigan (Virginia Tech)
    • Learning objectives
      • Distinguish between different types of models (deterministic vs. static, etc.)
      • Identify levels of hierarchy (organization) in biology
      • Identify possible modeling objectives
      • Discuss history of modeling and role in research
    • Demonstration exercise
    • Hands-on exercise
  • Lesson 2: Dynamic deterministic models: Tim Hackmann (University of Florida)
    • Learning objectives
      • Explain why this model type is predominant in mechanistic modeling
      • Define the rate-state formalism and relationship to compartmental model diagrams
      • Show how difference and differential equations represent dynamic states
      • Discuss approaches for integrating and solving equations
    • Demonstration exercise
      • Speaker builds a model of rumen fermentation from first principles
    • Hands-on exercise
      • Participants build their own simple model using difference equations and Excel template
  • Lesson 3: Estimation of parameter values: Luis Moraes (The Ohio State University)
    • Learning objectives
      • Discuss strategies for data selection
      • Show different approaches for parameter estimation (traditional vs. Bayesian)
    • Demonstration exercise (TBD)
    • Hands-on exercise (TBD)
  • Lesson 4: Model evaluation: Ermias Kebreab (University of California-Davis)
    • Learning objectives
      • Identify strength, weakness, and relevance of different evaluation statistics (e.g., R2, CCC, RMSPE)
      • Explain procedure and utility of sensitivity analysis
    • Demonstration exercise
      • Speaker conducts an evaluation with example dataset and R code
    • Hands-on exercise
      • Participants conduct their own evaluation with a second example dataset
  • Lesson 5: Example models for ruminant digestion and metabolism: Heidi Rossow (University of California-Davis)
    • Learning objectives
      • Show schemes by which digestion and metabolism are represented, including in vitro and in situ digestion of feed; passage of digesta through the GI tract; milk production by mammary gland; and tissue and whole-body protein synthesis
      • Show how schemes above are integrated in whole-animal models (MOLLY and others)
    • Demonstration exercise
      • Speaker walks through use of MOLLY
    • Hands-on exercise
      • Participants are given MOLLY and use it to make simple predictions
  • Lesson 6: Meta-analysis: Robin White (Virginia Tech)
    • Learning objectives
      • Explain the theory and motivation of a meta-analysis
      • Compare classical vs. neoclassical methods of model derivation
    • Demonstration exercise
      • Speaker shows meta-analysis with example dataset
    • Hands-on exercise
      • Participants conduct their own meta-analysis with second dataset and R code
  • Closing remarks: John McNamara (Washington State University)

Workshop: The Impact of Raw Milk on Dairy Products (full day, additional fee required, limited seating)

The production of quality dairy products starts on the farm. High-quality dairy products are characterized by good flavor, long shelf life, and the processor achieving their quality goals for all the products they make: fluid milk, ice cream, and aged cheeses.

This workshop addresses the gap in our understanding of the impact of production practices on raw milk quality and its subsequent effect on finished dairy products, by both producers and processors. The goal of this workshop is to tap into the expertise of ADSA scientists to conduct an educational program, in lay terms, for Pennsylvania and regional dairy producers and processors who wish to understand how farming practices affect the quality of dairy products and to learn strategies to improve dairy product quality.

Workshop Schedule

10:00 am
Opening remarks: Dr. Kerry Kaylegian, Pennsylvania State University
10:05–10:35 am
Milk component quality and variation: Dr. Kerry Kaylegian, Pennsylvania State University
10:35–11:05 am
Iron and copper in farm and plant water and impact of milk flavor: Dr. Sue Duncan, Virginia Tech
11:05–11:15 am
11:15 am–11:45 pm
Effect of raw milk microbial quality on the quality of cheese and dairy products: Dr. Lisbeth Goddik, Oregon State University
11:45 am–12:30 pm
12:30–1:00 pm
Effect of feed source on quality of cheese and dairy products: Dr. Stephanie Clark, Iowa State University
1:00–1:35 pm
Best milking practices for high quality milk: Dr. Ginger Fenton, Pennsylvania State University
1:30–2:00 pm
Milk quality and safety from udder to tank: Dr. Ernest Hovingh, Pennsylvania State University
2:00–2:15 pm
2:15–2:40 pm
Panel Q & A
2:45 pm
Closing remarks & adjourn: Dr. Kerry Kaylegian, Pennsylvania State University

ADSA Graduate Student Symposium: Building Strong Work Relationships to be Effective (half day, afternoon)

This interactive professional development workshop will focus on openness, accountability, and awareness for graduate students as they prepare for the workforce. Through small group discussions and hands on activities, participants will get a better understanding of themselves and how they relate to others in the process. This workshop will be a more in-depth companion piece to the 2017 ADSA Annual Meeting keynote address.

Speaker, Affiliation
Ethan Schutz, The Schutz Company

Dale Bauman Recognition Symposium (half day, afternoon)

Dr. Ken McGuffey and Dr. Bob Lance have organized this symposium honoring the contributions of Dr. Dale Bauman. This symposium will immediately follow the 2017 ADSA Lactation Symposium.

Speaker, Affiliation
Presentation Title
Ken McGuffey, McGuffey Consulting
Introduction—Years prior to the University of Illinois
John McNamara, Washington State University
The early years at the University of Illinois
Bob Collier, University of Arizona
Homeorhesis and nutrient partitioning
Lance Baumgard, Iowa State University
Training graduate students and the riddle of milk fat depression solved
Dale Bauman, Cornell University
Closing remarks

Late-Breaking Original Research Presentations and Posters (half day, afternoon)

The 2017 ADSA Annual meeting will include a session of late-breaking abstracts of original research that hopes to highlight a broad spectrum of work, including cutting-edge, high-tech research that was completed recently and is important to the species or discipline. Up to eight abstracts will be accepted from those submitted for the session. The authors of these abstracts will present their data at the Late-Breaking Abstract Session from 3:00 to 5:00 pm on Sunday. Authors of accepted abstracts for this session are required to prepare both an oral and a poster presentation. Oral presentations will include the speaker introduction, presentation, and question time in the usual 15-minute time slot. Posters of these presentations will also be available on Sunday (before the start of the oral session) and will remain on display for the duration of the meeting. This session is scheduled early in the program to allow networking with the presenting scientists and to avoid subject-matter conflicts.

Teaching Workshop: Helping Students Learn (half day, afternoon)

The target audience for this workshop is assistant professors and those who wish to reconsider their teaching methods in the light of recent advances in educational sciences. Also, PhD candidates and post-docs with an interest in exploring teaching and learning issues will benefit from this unique workshop. Industry partners interested in fostering high-quality education opportunities for undergraduates are welcome.

The workshop will include a lecture presentation followed by breakout sessions, during which participants at each of 7 tables will be asked to discuss the 1 of the 7 chapters of the book, How Learning Works—Seven Research-Based Principles for Smart Teaching (Ambrose et al., 2010).

Facilitators for the workshop breakout sessions include Michel Wattiaux (UW-Madison), Antonio Faciola (University of Nevada), Cathleen Williams (Louisiana State University), Marina Danes (University of Lavras, Brazil), Laura Hernandez (UW-Madison), Martin Maquivar (Washington State University), Peter Erickson (University of New Hampshire), and Amin Ahmadzadeh (University of Idaho).

Speaker, Affiliation
Presentation Title
Antonio Faciola, University of Nevada
Workshop introduction: Setting expectations
Michel Wattiaux, University of Wisconsin, Madison
How to teach and how to learn effectively: A review of the recent literature
Cathleen Williams, Louisiana State University
Orientation to breakout groups
Facilitator 1
Breakout session: How does students' prior knowledge affect their learning?
Facilitator 2
Breakout session: How does the way students organize knowledge affect their learning?
Facilitator 3
Breakout session: What factors motivate students to learn?
Facilitator 4
Breakout session: How do students develop mastery?
Facilitator 5
Breakout session: What kinds of practice and feedback enhance learning?
Facilitator 6
Breakout session: Why do student development and course climate matter for student learning?
Facilitator 7
Breakout session: How do students become self-directed learners?

Monday, June 26

Breeding and Genetics Symposium: Inbreeding in the Genomics Era (half day, morning)

The rate of inbreeding in livestock populations has increased in recent years and may continue to increase as genomic selection intensifies. New genomic tools are available to help us better understand the mechanisms of inbreeding. In this session, speakers will present an overview of the effects of genomic selection on livestock populations, current and new opportunities for monitoring and controlling the frequency of deleterious recessive alleles, and other relevant aspects of genomic inbreeding.

Speaker, Affiliation
Presentation Title
Jeremy Howard, North Carolina State University
Computational aspects of characterizing genomic inbreeding in livestock
Jennie Pryce, Department of Economic Development, Transport, Jobs, Melbourne, Australia
The effects of genomic selection on livestock populations
Ino Curik, University of Zagreb, Croatia
Inbreeding depression
Anders Sørensen, Aarhus University
What is the optimal measure of genomic inbreeding?
DirkJan De Koning, Uppsala University, Sweden
The flip side: Crossbreeding
Sophie Eaglen, CRV, The Netherlands
Genomic inbreeding from an industry perspective

Ruminant Nutrition: Metabolomics Applications in Dairy Cow Metabolism (half day, morning)

Metabolomics is a systems biology approach that uses mass spectrometry or nuclear magnetic resonance spectroscopy in an attempt to profile the comprehensive set of small metabolites in different biological matrices. The accessibility of metabolomics technologies is increasing and has the potential to transform our understanding of dairy cattle metabolism when properly utilized. However, we must be careful not to view metabolomics as an easy solution to obtain big data rather strategically use omics tools to address standing questions. This symposium will highlight innovative applications of metabolomics workflows in the dairy sciences and will feature speakers who are established metabolomics experts studying metabolic disease and nutrient utilization. Although the focus of each presentation will address hypothesis-driven research in the fields of dairy science and energy metabolism, presentations will also briefly introduce experimental approaches including experimental designs, sample preparation, instrumentation, data acquisition and processing, and statistical analysis. Areas of metabolomics interest for the ADSA membership include the characterization of (1) the rumen metabolome in response to dietary fiber and concentrate in relation to production and feed efficiency, (2) the milk metabolome as a means to discover novel biomarkers for disease monitoring or the favorable modification of milk composition to meet consumer demand, and (3) the bovine lipidome during the transition from gestation to lactation.

Speaker, Affiliation
Presentation Title
Oliver Fiehn, University of California, Davis
Mass spectrometry-based metabolomics: Past, current, and future developments
Fozia Saleem, University of Alberta
Metabolomics reveals unhealthy alterations in rumen metabolism with increased proportion of cereal grain in dairy cow diets: Application of MetaboAnalyst
Peter Meikle, Baker IDI Heart and Diabetes Institute
Effects of low-fat or full-fat fermented and non-fermented dairy foods on selected cardiovascular biomarkers in overweight adults: Potential benefit of full-fat dairy products
Wolfram Gronwald, University of Regensburg
Metabolomic analysis of dairy cows reveals milk glycerophosphocholine to phosphocholine ratio as prognostic biomarker for risk of ketosis
Joseph McFadden, West Virginia University
Characterization of the bovine lipidome has identified sphingolipid ceramide as a biomarker of insulin resistance in dairy cattle

Small Ruminant Symposium: New Opportunities for Dairy Sheep and Goats (half day, morning)

The world of dairy sheep and goats, with more than 400 million head, is a diversified industry both located in developed or developing countries and sharing the use of traditional-extensive or very modern-intensive production systems. Modern dairy sheep and goat systems are currently recognized as a profitable business opportunity and a new farming alternative addressed to sell high quality and gourmet dairy products (mainly cheeses). It has shown to be sustainable and scarcely affected by the milk price crisis in Europe.

A better knowledge and the implementation of new technologies are currently needed in the small ruminant dairy industry but are few available. There is an unsatisfied demand of updated knowledge and interest on dairy sheep and goats worldwide and in the U.S. Both species will be jointly discussed with symposium speakers presenting the state-of-the-art of 6 main topics covering the key aspects of dairy sheep and goat production.

Speaker, Affiliation
Presentation Title
Gerardo Caja, University Autonoma of Barcelona
Giuseppe Pulina, University of Sassari, Italy
Current market trends of sheep and goats milk, farm structures and production costs
Paola Roncada, Istituto Sperimentale Italiano Lazzaro Spallanzani
Compositional and functional differences of ewe and goat's milk and dairy products with regard to cow's milk and dairy products
Maristela Rovai, South Dakota State University
Update on lactation biology and milking strategies of small ruminants
David Thomas, University of Wisconsin-Madison
Currently available genetic resources and key indicators of dairy breeds efficiency
Antonello Cannas, University of Sassari
Intake prediction and feeding requirements for dairy small ruminants: Comparison of systems
Ahmed Salama, University Autonoma of Barcelona
Impact of environmental stressors on milk production of dairy small ruminants

Teaching/Undergraduate and Graduate Education Symposium: Mentoring in Dairy Science (half day, morning)

Mentoring is a crucial issue in academia and it is important to address issues related to mentoring in dairy science. This symposium is aimed at addressing issues related to mentoring undergraduate and graduate students as well as postdocs and young faculty; this symposium will also address issues related to mentoring minorities and women in dairy science.

Speaker, Affiliation
Presentation Title
Leanne Berning, California Polytechnic State University
Mentoring undergraduate students in dairy science
Ralph Noble, North Carolina A&T University
Mentoring minorities in dairy and animal sciences
Antonio Faciola, University of Nevada, Reno
Mentoring graduate students as a young faculty: Challenges and opportunities
Katie Schoenberg, Elanco Research and Development
Mentoring and empowering women in dairy science
Philip Clifford, University of Illinois
Mentoring postdocs in an increasingly competitive environment
Kent Weigel, University of Wisconsin-Madison
Mentoring young faculty to succeed in teaching and research
Panel discussion with speakers

ADSA Production Division Symposium: Future of the Dairy Sector Toward 2030 (half day, afternoon)

In November 2015, the 30th Discover Conference: Creating an Enduring US Dairy Production Sector took place at the initiative of ADSA. It discussed the ability to abate threats and capitalize opportunities in a new globalized context. Sustainability as a key factor of the enduring sector was handled as integrative and interdisciplinary in nature. Innovative aspects were introduced. This conference was a brainstorming event without official output.

At the EAAP congress in Belfast, Northern Ireland, in August 2016, a seminar was held about the future of the dairy sector in Europe following abolishment of the EU milk quota in April 2015. This full-day seminar was organized in cooperation with ADSA. Feeding, health, breeding, environmental, and economic aspects dealing with the future of the sector is on the program, as well as market development and price volatility. The goal is to develop an integral view of the sector. Three ADSA speakers participated, linking this seminar to the ADSA Discover Conference as described above.

The 2017 ADSA Production Division Symposium continues this series by addressing the future of the dairy sector, this time with a worldwide perspective, with some focus on the American continent. The most innovative and challenging outcomes of the EAAP Belfast dairy seminar, among others, will be presented as input from European experts. Again, an integral outlook on the dairy sector will be discussed. Thus, future perspectives of feeding, animal and human health, breeding and environment with respect to the dairy products and sector will be highlighted by expert speakers. The symposium will include ample time for discussion and brainstorming.

Speaker, Affiliation
Presentation Title
Mark Hanigan, Virginia Tech and Robin R. White, Virginia Tech
Vision on dairy cattle nutrition toward 2030
Rupert Bruckmaier, University of Bern
Vision on dairy cattle physiology and limits of milk production growth towards 2030
Helga Sauerwein, University of Bonn
Vision on dairy cattle physiology and limits of milk production growth towards 2030
Kees de Koning, Wageningen University and Research
Vision on environmental and systems aspects of dairy farm and herd towards 2030
Abele Kuipers, Wageningen University and Research
Vision on environmental and systems aspects of dairy farm and herd towards 2030
Pamela Ruegg, University of Wisconsin
The global dairy industry—What does the future hold?
Adam Lock, Michigan State University
Vision on milk and dairy products and human health towards 2030
Roger Cady (moderator), Elanco
Interactive debate between speakers and audience: How will the dairy sector look in 2030
Abele Kuipers (moderator), Wageningen University and Research
Interactive debate between speakers and audience: How will the dairy sector look in 2030

ADSA Southern Section Symposium: Key Considerations for Improving Milk Quality in the Southeast

Despite ongoing improvements and many farms in the southeastern US consistently producing high-quality milk, mastitis and somatic cell counts remain problematic across the region. In 2013, a USDA-funded effort, the Southeast Quality Milk Initiative, was begun, with 6 universities collaborating on a project evaluating milk quality from a variety of perspectives, including surveys on producer opinions and attitudes; parlor management and function; housing; and economics. This symposium will highlight the findings of this study along with focusing on opportunities to improve milk quality both in the Southeast and beyond.

Speaker, Affiliation
Presentation Title
Jeffrey Bewley, University of Kentucky
The role of technology in quantifying mastitis related decisions
Amanda Stone, Mississippi State University
The role of housing facilities and management in improving milk quality
Peter Krawczel, The University of Tennessee
The role of housing facilities and management in improving milk quality
Keena Mullen, North Carolina State University
Considerations for managing mastitis and milk quality on organic dairy farms
Susan Schexnayder, The University of Tennessee
Getting inside their heads: Dairy farmers' attitudes and behaviors that affect milk quality

Animal Health Symposium: Joint ADSA/National Mastitis Council Symposium: Mastitis Control and Milk Quality Globally: Past, Present, and an Amazing Future (half day, afternoon)

Mastitis control has made great strides over the past 75 years with higher quality milk worldwide. However, better mastitis control and even better quality are critical for farm profitability and product availability and quality worldwide. This symposium will briefly summarize past and present accomplishments and milk quality globally, but the major focus is on future areas for mastitis control and milk quality, including genetics and host manipulation; therapy and alternative therapeutic (prevention) strategies; and milking time technologies and practices to enhance milk quality decision making. Each of these areas will be covered in a brief overview, and we will then showcase 2 mini-talks highlighting new faculty and students working in these evolving key areas.

Speaker, Affiliation
Presentation Title
Leo Timms, Iowa State University
Mastitis control: Past, present, and future and milk quality globally
Gina Pighetti, University of Tennessee
Genetics, genomics, and improving mastitis resistance
Filippo Miglior, Canadian Dairy Network
Novel genomic and phenotypic strategies to improve mastitis resistance and milk
Lydia Siebert, University of Tennessee
Using whole-genome strategies to identify new preventive and therapeutic targets for mastitis
John Middleton, University of Missouri
Past therapy success and challenges and visions for the future
Andres Contreras, Michigan State University
Modulating adipose tissue lipolysis and remodeling to improve immune function in early lactation
Corwin Nelson, University of Florida
Targeting antimicrobial defenses of the udder through intrinsic cellular pathways
Ron Erskine, Michigan State University
Challenges to milking efficiency: Quality versus quantity
Jeffrey Bewley, University of Kentucky
Data, decisions, and mastitis
Rhyannon Moore-Foster, Michigan State University
Cutting-edge technology measuring parlor performance from a cow's perspective

Bioethics Symposium: Sustainable Dairy Farm (half day, afternoon)

The big question of the moment is what does a sustainable dairy farm look like from the social, economic, and environmental standpoint? Sustainability is a hot topic today but few people understand the bridge from dairy farm to sustainable practices. The term "sustainable" likely has different meanings for different people, so we must first define the term and explore some real-life situations in dairy science. This symposium will cover three major topics: (1) drivers and barriers to farmer adoption of sustainable practices; (2) what a sustainable dairy farm looks like from the environmental standpoint; and (3) the sustainable dairy farm and social impact, with respect to antibiotics and other issues.

Speaker, Affiliation
Presentation Title
Meredith Niles, University of Vermont
Drivers and barriers to farmer adoption of sustainable practices
Vinícius Moreira, Louisiana State University
What a sustainable dairy farm looks like from the environmental standpoint
Leandro Diamantino Feijó, Brazilian Agriculture Ministry
Sustainable dairy farm and social affairs: Antibiotic residues and other issues
Robert Hagevoort, New Mexico State University
Availability of water and its impact on management practices and location of dairies
Mark Armfelt, Elanco
Influence of public perception on future dairy cattle management practices

Forages and Pastures Symposium: Multidimensional Functions of Forages and Pastures for Dairy Production (half day, afternoon)

The dairy industry has been challenged to meet increasing public demand for environmentally responsible nutrient management, in addition to maintaining a high degree of herd health, productivity, and profitability. Consequently, one of the major objectives of the dairy production system worldwide is to develop a sustainable farming system with environmentally friendly production management. Efficient use of nutrients is one of the major assets of sustainable agricultural production systems, because inefficient nutrient use not only results in excessive and potentially harmful losses to the environment, but also affects economic performance. As forages are the foundation upon which good forage-based cattle programs are built, it is important to understand multiple functions of forages to maximize nutritional efficiency while minimizing environmental concerns and economical costs in dairy production.

In addition, dairy producers have adopted grazing systems in an attempt to reduce the input costs and increase the profit margin per cow. High-quality pastures are key to high milk production in grazing dairy herds. However, many questions arise as to how we can develop and maintain sound grazing systems for better cow health, welfare, and environment. This symposium will feature lead researchers who will review the current state of knowledge and new developments in multidimensional functions of forages and pastures for dairy production.

Speaker, Affiliation
Presentation Title
Randy Shaver, University of Wisconsin
The impact of forages and their quality on the efficiency of dairy production
Mike Allen, Michigan State University
The filling effect of forages and its effect on feed intake of lactating cows
John Roche, DairyNZ
The role of nutrition in dairy cow health and welfare in grazing systems
Paul Weimer, US Dairy Forage Research Center
The influence of forage feeding on the ruminal microbiome of dairy cattle and its implications for dairy production

Ruminant Nutrition Symposium: Ruminal Metagenomics in Dairy Cattle—Beyond Microbial Diversity (half day, afternoon)

The vital role played by the ruminal microbiome in dairy cattle nutrition is undisputed. Ruminal microbiome diversity and regulation have practical implications for dairy cattle development, productivity, milk composition, feed efficiency, and methane emissions. Attendees of this symposium will develop a better understanding of the rumen microbiome through presentations that share findings with practical implications for the feeding of dairy calves, transition cows, and lactating cows. The symposium will discuss the microbiome in the context of intestinal development/gut health.

Speaker, Affiliation
Presentation Title
Leluo Guan, University of Alberta
Colonizing microbiome influences early intestinal development in newborn dairy calves
Derek Bickhart, USDA-ARS
Host–rumen microbe interactions may be leveraged to improve productivity of dairy cows
Itzhak Mizrahi, Ben-Gurion University of the Negev Israel
Can the rumen microbiome be manipulated to enhance feed efficiency in dairy cows?
Dipti Pitta, University of Pennsylvania
Understanding dietary–microbe interactions to enhance productivity of dairy cows
Timothy Snelling, The University of Aberdeen
Leveraging next-generation sequencing technology to identify the functional role of rumen microbiome in dairy cows

Tuesday, June 27

ADSA Multidisciplinary and International Leadership (MILK) Symposium: The Dairy Cow in 50 Years (half day, morning)

Dairy cattle have changed considerably in the past 100 years. They now are generally taller and thinner with larger udders that produce considerably more milk. Genomic selection and the ability to modify specific genes will enable us to make changes even faster in the next 100 years. The discipline of animal breeding is generally concerned with genetic change; however, all disciplines must adapt to the animals that are produced. Moreover, dairy cattle genetics are related across countries. Thus, it is imperative that we consider the future of the dairy cow from a multidisciplinary and international approach. Although the presentations are led mostly by geneticists, this symposium is for all dairy scientists—especially for those who are not geneticists.

Speaker, Affiliation
Presentation Title
Mike VandeHaar, Michigan State University
Jack Britt, Jack H Britt Consulting
A vision of the dairy farm and dairy cow in 50 years
John Cole, USDA Animal Genetics and Improvement Laboratory
Possibilities in an age of genomics: The future of the breeding index
Jennie Pryce, Agribio
Building a better cow: The Australian experience and what's next.
Donagh Berry, University College, Dublin, Ireland
Building a better cow: How can we be sure she is adaptable?
Mike VandeHaar, Michigan State University
General discussion

Dairy Foods Symposium: Processing—Biofilm Formation on Dairy Separation Membranes (half day, morning)

In industrial practices, milk or whey membrane separation units may operate continuously for more than 24 hours. Bacteria are considered a major fouling agent. Formation of biofilms on dairy separation and concentration membranes affect not only their performance but also the quality, composition, and safety of the final product. Whereas biofilm formation on food processing equipment has been extensively studied, there is limited information on the formation of biofilms on dairy separation membranes. Most biofilm principles were derived from nonfood systems, which may not apply to a nutrient-rich dairy environment. Therefore, the information obtained from dairy systems would help the industry develop effective customized cleaning and sanitation regimens. Exopolysaccharide (EPS)-producing bacteria are commonly used in making cheese, especially reduced-fat varieties; EPS are the cementing agent in biofilms. Thus, EPS-producing starter released in whey can contribute to biofilm formation on whey separation membranes. Topics covered in this symposium will include principles of biofilm formation on food contact surfaces, methods to study biofilm, current knowledge of biofilm formation on dairy membranes, and strategies to control biofilms.

Speaker, Affiliation
Presentation Title
Ashraf Hassan, Daisy Brand
Role of exopolysaccharide-producing cheese cultures in biofilm formation on whey separation membranes
Steve Flint, Massey University
The role of biofilms in the quality of dairy products in whey processing plants
Phil Stewart, Center for Biofilm Engineering, Montana State University
Controlling microbial biofilm
Tina Arrowood, The Dow Chemical Company
Features of RO membranes that influence biofouling
Mansel Griffiths, University of Guelph
The role of quorum sensing in biofilm formation by bacteria in the dairy processing environment

Precision Dairy Farming Symposium: Precision Dairy (PD) Management Today (half day, morning)

Precision dairy technologies are being increasingly adopted by dairy producers across the United States and the world, and we are excited to bring this topic to ADSA 2017. Many consultants, veterinarians, academics, students are working with customers and clients that have these technologies, and an overview of how they are being used along with benefits and challenges is warranted. It is also important to learn about these technologies in order to be prepared to offer advice to dairy producers.

Speaker, Affiliation
Presentation Title
David Kelton, University of Guelph
PD research and user update: Dairy cattle health and welfare
Ronaldo Cerri, The University of British Columbia
PD research and user update: Dairy cattle reproduction
Claudia Kamphuis, Wageningen University
Precision dairy economics
Brad Biehl, Corner View Farm
Producer experience with precision dairy

ADSA/American Society for Nutrition Joint Symposium: Does the Amount and Type of Fat that you Eat Matter? (half day, afternoon)

Most people wish for a long, happy, and healthy life. Nutrition plays a role in achieving that goal. The role of nutrition, especially regarding the amount and type of dietary fat, in helping people achieve that goal is not clearly understood by scientists and by the public. The objective of this symposium is to describe the current understanding regarding the interaction of the amount and type of dietary fat with incidence of human disease, with special attention given to obesity, diabetes, and cardiovascular diseases. Particular focus will be made to the effect of dairy foods in health promotion.

Speaker, Affiliation
Presentation Title
Lance Baumgard, Iowa State University
A rational evaluation of the dairy fat debate
Glen Lawrence, Long Island University
Dietary fats: The saturated vs unsaturated controversy
Gowri Raman, Project Director, Institute for Clinical Research and Health Policy Studies, Tufts Medical Center
Scientific evidence and gaps: A systemic review of dietary cholesterol and cardiovascular disease
Rafael Jimenez-Flores, The Ohio State University
Nutritional significance of milk fat composition and structure

Animal Health Symposium: Antibiotics and Animal Agriculture: Outlook for the Next 10 Years (half day, afternoon)

With growing pressure to decrease use of antibiotics and novel developments in other approaches to combatting disease, what is the outlook in the next 10 years?

Speaker, Affiliation
Presentation Title
Patrick Gorden, Iowa State University
How has the veterinary feed directive changed dairy production medicine?
Pamela Ruegg, University of Wisconsin
The status of antimicrobials for dairy practice: An update on efficacy and resistance
Gerald Mechor, Elanco Animal Health
Strategies for reducing antibiotic use in dairy cattle
Kwang Cheol Jeong, University of Florida
Enhancing animal health through multiple modes of action

Dairy Foods Symposium: Emerging Research and Insights to Drive Innovations in Fluid Milk (followed by NDC reception) (half day, afternoon)

Innovating with fluid milk presents a growth opportunity for the dairy industry, as consumers are increasingly demanding wholesome, nutritious, and sustainable products. According to DMI's market insights, the whole milk category is growing and accounts for one-third of total fluid milk in retail. Moreover, we increasingly see value-added products in the fluid milk and beverage categories that are beyond the traditional "gallon jug" such as high-protein, lactose-free, n-3, or refuel milks. This growth would not have been possible without extensive research efforts toward product and package innovation as well as quality improvement of fluid milk. This symposium will review the latest research and insights related to fluid milk.

Speaker, Affiliation
Presentation Title
Rohit Kapoor, National Dairy Council
Opening Remarks
Mary Wilcox, Significant Outcomes, LLC
Market insights and consumer trends in fluid milk and beverages
Mary Anne Drake, North Carolina State University
Effect of protein type and level in fluid milk on consumer liking
Susan Duncan, Virginia Tech
Preserving milk freshness in retail environment
David Barbano, Cornell University
Building consumer trust: Milk composition as a predictor for animal health
Nicole Martin, Cornell University
Impact of post pasteurization contamination on milk quality
Rohit Kapoor, National Dairy Council
Closing Remarks

Growth and Development Symposium: Microbial Endocrinology in Ruminant Growth and Development (half day, afternoon)

Our knowledge of the gut microbiome has increased exponentially in the past 10 years. Likewise, our knowledge of the host gut transcriptome under various experimental conditions has expanded. It is becoming increasingly obvious that microbiota can affect host tissue responses. A specific area of study for the future is the emerging area of microbial endocrinology, which deals with inter-kingdom signaling based on bidirectional interactions between the host and the microbiome. To date, microbial endocrinology is best understood as it relates to the microbiome–gut–brain axis. To our knowledge, this field of microbial endocrinology is completely unexplored in growing ruminants. Dedicated research efforts in this area may uncover previously unknown synergisms between the gut microbiome and host growth and development.

Speaker, Affiliation
Presentation Title
Mark Lyte, Iowa State University
An introduction and overview of the emerging field of microbial endocrinology
Leluo Guan, Univeristy of Alberta
Mining metagenomic and transcriptomic data for clues about microbial endocrinology in ruminants
David Brown, University of Minnesota
Microbes, Mucous Membranes and Chemical Signals in the Digestive Tract

Wednesday, June 28

Animal Behavior and Well-Being Symposium: Allowing for Natural Behavior in Dairy Cattle (half day, morning)

Although there are many different definitions of animal welfare, all include a statement about the animal's ability to live a reasonably natural life. For example, one of the Five Freedoms (Farm Animal Welfare Council) is the "freedom to express natural behavior," and the World Organization for Animal Health (OIE) asserts that animals should be "able to express innate behavior" to experience a good state of welfare. Due to the importance of natural living in animal welfare, a growing area of research has been dedicated to understanding natural behavior in dairy cattle. Research in this area includes both the provision of outdoor access and creation of indoor facilities that allow for the expression of important natural behaviors in calves and cows. The overall goals of this symposium are to highlight novel research focused on natural living in dairy cattle and to begin a discussion about the evolution of this topic over the next few decades.

Speaker, Affiliation
Presentation Title
Marina von Keyserlingk, University of British Columbia
The role of natural living in dairy cow welfare: Where we are and where we are going
Julie Føske Johnsen, Norwegian Veterinary Institute
Housing and management that promotes natural behavior in dairy calves
Katy Proudfoot, The Ohio State University
Designing the maternity pen to allow for maternal behavior in dairy cattle
Jeffrey Bewley, University of Kentucky
What to build next: Alternatives to freestall housing that promote natural behavior

Dairy Foods Symposium: Microbiology: Biology LAB Symposium: Recent Developments in Lactic Acid Bacteria (half day, morning)

Lactic acid bacteria (LAB) have been utilized for dairy fermentations since long before the days of Louis Pasteur. In addition, LAB have contributed greatly to the field of microbiology, especially in bacteriophage biology, evolution, genetics, and ecology. For example, the initial discovery and description of the bacterial immune system (CRISPR) in Streptococcus thermophilus has been revolutionary to the microbiology field and beyond. This symposium will highlight recent advances in CRISPR/phage dynamics, LAB evolution, manipulation of LAB for improved function and co-culture dynamics in dairy foods.

Speaker, Affiliation
Presentation Title
Craig Oberg, Weber State University
Advances in nonstarter microbiology related to gassy defect in cheese
Paul Cotter, Teagasc
Lactococcal lantibiotics and bioengineering thereof
Eric Johansen, Chr. Hansen
Less is more: Improving starter cultures to bring out the best in yogurt
Dennis Romero, Dupont
CRISPR-Cas: Research and application of natural systems in dairy starter cultures
Alexandra Briner, North Carolina State University
Mining and exploiting CRISPR-Cas systems from LAB

Milk Protein and Enzymes Symposium: Protein Interactions—Aggregations and interfaces (half day, morning)

Dairy protein aggregation and the role at interfaces is key to understanding processing and nutritional functionality. Fundamental science continues to advance our understanding of the behavior of milk proteins during processing, and new techniques are becoming available for studying aggregation in increasingly complex systems. This symposium will review the fundamental aspects of the aggregation of milk proteins, how to control such aggregation and what the consequences are to functionality and digestion.

Speaker, Affiliation
Presentation Title
Sally Gras, University of Melbourne, Australia
Milk proteins: Aggregation and interactions at interfaces and within dairy networks
Alan Mackie, University of Leeds, UK
Effect of aggregation and interfaces on the digestion of dairy proteins
Mark Auty, Teagasc, Ireland
New microstructural approaches to protein interactions
Milena Corredig, Gaylea Foods, Canada
The role of soluble aggregates on the processing functionality of milk and milk concentrates
Mark Fenelon, Teagasc, Ireland
Impact of protein aggregation on in-process and finished product stability of infant formula

Physiology and Endocrinology Symposium: Mediators of Effects of Stress on Reproduction, Growth, and Lactation (half day, morning)

Stress can be defined as any factor external to the organism that displaces it from the ground state. Among the stresses affecting dairy cattle that are important for performance are nutritional imbalances, infectious disease, and heat stress. Deciphering the physiological and cellular mechanisms by which specific stresses disrupt reproduction, growth, and lactation can lead to new approaches for reducing stress effects on cow productivity. This symposium will highlight recent advances in our understanding of the role of microorganisms, metabolites, and mitochondria as mediators of stress.

Speaker, Affiliation
Presentation Title
Lance Baumgard, Iowa State University
Consequences of leaky gut on the immune system, metabolism, physiology and animal performance
Martin Sheldon, Swanea University
Mechanisms linking metabolic stress with innate immunity and endometrial health
Charles Wood, University of Florida
Importance of the microbiome and immune-related genes in development of the fetal brain
Juan Loor, University of Illinois at Urbana-Champaign
Effectors of immunometabolic adaptations to lactation: Implications on physiology and performance
Eduardo de Souza Ribeiro, University of Guelph
Lipids as regulators of conceptus development: Implications for nutritional regulation of reproduction
Zvi Roth, Hebrew University
Reduction in oocyte developmental competence by stress is associated with alterations in mitochondrial function

Production, Management, and the Environment Symposium: Greenhouse Gas Emissions from Dairy Operations (half day, morning)

The topic of greenhouse gas (GHG) emissions (methane from enteric fermentation and methane and nitrous oxide from manure) from dairy and beef production systems is equally important for the livestock industries, the scientific community, and the public in the United States and globally. This symposium should generate a broad international and media interest and attendance, particularly with recent exciting developments such as the discovery of potent enteric methane inhibitors. Research on GHG mitigation is accelerating in the United States, and exposure to international speakers is vital for properly directing research efforts and federal funding, which has not always been the case in recent years. An important component of the symposium will be highlighting progress with the GLOBAL NETWORK project, a multinational effort that has resulted in the development of the largest database of individual animal data for predicting enteric methane emissions in livestock species.

Speaker, Affiliation
Presentation Title
Alex Hristov, Pennsylvania State University
April Leytem, USDA-ARS
Greenhouse gas emissions from confined dairy production systems
Gary Lanigan, Teagasc
Greenhouse gas emissions from pasture-based dairy production systems
Søren Petersen, Aarhus University, Denmark
Manure greenhouse gas emissions: Prediction and mitigation
Alex Hristov, Pennsylvania State University and Ermias Kebreab, University of California, Davis
Enteric methane emissions: Prediction and mitigation, the GLOBAL NETWORK project
Modeling greenhouse gas emissions from dairy farms
Panel discussion

Mixed Models Workshop (additional fee required)

Wednesday, June 28 and continues for an additional half day on Thursday, June 29 (additional fee required)

This one-and-a-half-day workshop provides a comprehensive exposition of proper statistical data analysis and power determinations of commonly used experimental designs in the animal sciences. The workshop is example-driven and primarily based on the various mixed model analysis procedures available in SAS software.

Specific topics will include

  1. Why mixed models? An introduction (includes an introduction to GLIMMIX analysis of incomplete block designs);
  2. Analysis of repeated measures data;
  3. Mixed models residual and influence diagnostics;
  4. Power determinations based on mixed models;
  5. Generalized linear mixed models for binary data and corresponding power analyses.

This workshop will take place for a full day on Wednesday, June 28 and continue for an additional half day on Thursday, June 29.

Instructor: Dr. Nora Bello, Associate Professor at the Department of Statistics, Kansas State University

Instructor: Dr. Nick Keuler, Research Associate and Statistical Consultant at University of Wisconsin, Madison

Instructor: Dr. Kevin McCarter, Associate Professor at the Department of Experimental Statistics, Louisiana State University

Chr. Hansen Symposium: Microbial Ecology of Cheese (half day, afternoon)

Chr. Hansen Inc. is proud to sponsor a symposium—Microbial Ecology of Cheese—as part of the 2017 ADSA Annual Meeting. This symposium will be the second of 3 consecutive symposia over 2 days, including Advances in Lactic Acid Bacteria, Microbial Ecology of Cheese, and the Teagasc/Moorepark–University College Cork Cheese Symposium. This half day symposium will gather key research on the microbial communities that characterize cheeses, including the opportunistic colonizers, the populations that are deliberately developed and introduced, and the interactions between these microflorae. Chr. Hansen-sponsored speakers are leading experts in this field of research, including Teagasc's starter culture expert Olivia McAuliffe, as well as Gisele LaPointe, Rachel Dutton, and David Mills.

Speaker, Affiliation
Presentation Title
Olivia McAuliffe, Teagasc
Dairy species from non-dairy sources: Their genomic and metabolic diversity and potential applications in cheese
John Hannon, Chr Hansen
Development of secondary cultures for consistency and control over cheese ripening
Gisele LaPointe, University of Guelph
Interaction of starter cultures and NSLABs in the cheese environment
David Mills, University of California, Davis
Contributions of the surrounding environment to microbial ecology of cheese
Rachel Dutton, University of California, San Diego
Complex communities that characterize the microflora in and on the surface of cheese

Thursday, June 29 (Post-conference)

Mixed Models Workshop (continued)

Wednesday, June 28 and continues for an additional half day on Thursday, June 29 (additional fee required)

This one-and-a-half-day workshop provides a comprehensive exposition of proper statistical data analysis and power determinations of commonly used experimental designs in the animal sciences. The workshop is example-driven and primarily based on the various mixed model analysis procedures available in SAS software.

Specific topics will include

  1. Why mixed models? An introduction (includes an introduction to GLIMMIX analysis of incomplete block designs);
  2. Analysis of repeated measures data;
  3. Mixed models residual and influence diagnostics;
  4. Power determinations based on mixed models;
  5. Generalized linear mixed models for binary data and corresponding power analyses.

This workshop will take place for a full day on Wednesday, June 28 and continue for an additional half day on Thursday, June 29.

Instructor: Dr. Nora Bello, Associate Professor at the Department of Statistics, Kansas State University

Instructor: Dr. Nick Keuler, Research Associate and Statistical Consultant at University of Wisconsin, Madison

Instructor: Dr. Kevin McCarter, Associate Professor at the Department of Experimental Statistics, Louisiana State University

Teagasc/Moorepark–University College Cork Cheese Symposium (full day, additional fee required, limited seating)

The Teagasc/Moorepark–University College Cork Cheese Symposium will feature innovative leading-edge cheese research in areas including the biochemical, textural, and functional changes in cheese during ripening, the influence of manufacturing parameters on cheese ripening, the cheese microbiome, health and nutrition aspects of cheese, and the impact of diet (such as grass-based vs. non-grass-based systems) on the processing characteristics of milk and the flavor of dairy products. Patrick Fox will deliver the symposium's opening address, which will consider the evolution of cheese science and the lessons learned for future challenges. Speakers will include Paul McSweeney, Paul Cotter, Diarmuid Sheehan, Tim Guinee, Kieran Kilcawley, and Tom Beresford. The symposium will conclude with an address by John Lucey that will consider the challenges of interfacing next-generation cheese research with industry needs. This capstone address will include an open forum to inspire audience participation as we seek to map out a course for the future.

This world-renowned group of cheese and dairy foods scientists have authored or edited some of the most influential books on cheese science and dairy chemistry, including Fundamentals of Cheese Science; Cheese: Chemistry, Physics and Microbiology; Dairy Chemistry and Biochemistry; and the Advanced Dairy Chemistry series. The breadth of this symposium will be truly expansive, extending into areas of human health and nutrition, sensory science, molecular biology, pasture and herd management, and of course the chemistry, biochemistry, microbiology and technology of cheese.

An important goal of this symposium will be to bring together a diverse audience of cheese scientists, cheese makers, processors who use cheese as an ingredient, and industry and academic leaders to consider the challenges that confront cheese research in the 21st century, and to explore new opportunities for international partnerships among academic and industry cheese scientists and their organizations to address those challenges.

8:45 am
Opening address and framing of the symposium: Paul Kindstedt, University of Vermont
9:00 am
Introduction to Teagasc: What is Ireland’s dairy research strategy?: Mark Fenelon, Teagasc-Moorepark
9:10 am
Introduction to University College Cork (UCC): Paul McSweeney, University of College Cork, Ireland
9:20 am
Introduction of Professor Emeritus Pat Fox (UCC): Paul Kindstedt, University of Vermont
9:25 am
How has cheese science evolved? Lessons learned for future challenges: Pat Fox, University of College Cork, Ireland
9:55 am
Biochemical, textural and functional changes in cheese during ripening: Paul McSweeney, University of College Cork, Ireland
10:25 am
10:45 am
The cheese microbiome and its relevance to industry: Paul Cotter, Teagasc-Moorepark
11:15 am
Influence of manufacture parameters on cheese microstructure, microbial localization and their interactions during ripening: Diarmuid (JJ) Sheehan, Teagasc-Moorepark
12:15 pm
Impact of diet on the processing characteristics of milk from a spring-calved herd: Tim Guinee, Teagasc-Moorepark
12:45 pm
2:00 pm
Profiling the flavor of dairy products from grass-based versus non-grass-based milk production systems: Kieran Kilcawley, Teagasc-Moorepark
2:30 pm
Cheese: Health and nutrition: Tom Beresford, Teagasc-Moorepark
3:00 pm
Interfacing next-generation cheese research with industry needs: A strategic challenge: John Lucey, University of Wisconsin, Center for Dairy Research
3:20 pm
Open Forum: John Lucey
4:00 pm
Closing: Paul Kindstedt and Diarmuid Sheehan
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