Real Science Exchange-Dairy

Balchem Animal Nutrition & Health
  • 5.0 (70)
  • Life Sciences
  • Updated Semimonthly

Balchem Real Science Exchange isn’t just any old boring podcast. You’ll get to know top researchers like you’ve never known them before. Go behind the scenes and hear the conversations that take place over a few drinks with friends. Join us as we discuss the hot topics in animal science and share a range of new ideas.

  1. 3d ago

    Concepts and Strategies to Improve Physiological Resilience to Heat Stress in Dairy Cows

    The panel features the speakers behind the symposium "Concepts and Strategies to Improve Physiological Resilience to Heat Stress in Dairy Cows": Dr. Yun Jiang (University of Wisconsin-Madison), Dr. Jimena Laporta (University of Wisconsin-Madison), Dr. Vincenzo Lopreiato (University of Messina), and Dr. Maya Zachut (Volcani Institute). The episode begins with introductions. Dr. Jiang describes her research on stress mitigation and dairy nutrition sustainability, and Dr. Laporta shares her path from the University of Florida to UW. Dr. Lopreiato, based in Sicily, notes he has worked on heat stress for three years. (00:00 – 03:48) The discussion turns to heat stress as a global issue. Dr. Zachut explains that cows in Israel are now considered heat stressed eight months a year, and that the topic has become relevant even in northern regions. She stresses that even the most advanced cooling systems cannot fully alleviate heat stress, which is why the symposium brings physiology and nutrition together. (03:49 – 09:19) Dr. Jiang then shares her work on why some cows are naturally more resilient, showing smaller milk drops and less rise in body temperature. Resilient cows produced less methane and had lower inflammation, and she suspects differences in energy metabolism. With 64 cows, she notes the study was too small for genetic analysis. (09:20 – 11:58) Attention then shifts to the dry cow and the "transition calf." Dr. Laporta explains that heat stress in the first 60 to 90 days of life affects the mammary gland, ovary, thymus, and spleen. Cooling pre-weaned calves improved survival and slightly increased milk production later as cows, an opportunity she calls practical for producers facing replacement shortages. (11:59 – 19:37) Dr. Zachut next presents a 2x2 study comparing three versus six cooling sessions per day in mid-lactation cows, with or without beta-caryophyllene, a dietary cannabinoid. More cooling improved welfare, behavior, and milk production, but surprisingly had little effect on immune function after an intramammary LPS challenge. The best cooling plus the supplement showed synergistic effects. (19:38 – 26:10) Dr. Lopreiato then discusses methionine and plant polyphenols, which both activate antioxidant defenses. He notes that even with efficient cooling, milk losses can reach 15%, and he suggests oxidative stress may be a key driver of heat stress damage. (26:11 – 32:18) Particular emphasis is placed on fine-tuning, not suppressing, the immune response. Dr. Zachut calls cooling by far the strongest tool, but cows cooled three times daily with the supplement had resting times similar to cows cooled six times. The panel also discusses capsaicin-containing extracts, which may increase sweating, while Dr. Lopreiato highlights the importance of rumen protection. (32:19 – 38:47) The panel also explores immune function in calves. Dr. Laporta explains that heat stress activates the calf's immune system but makes it less effective, with lower neutrophil function and more illness. Dr. Zachut sees young calves as an opportunity to feed polyphenols before the rumen is fully functional. (38:48 – 43:53) The conversation concludes with key takeaways. Dr. Zachut notes that even the best-cooled farms still see losses in fertility and immune function, while Dr. Jiang asks whether heat-stressed cows have different nutrient requirements. Dr. Laporta emphasizes there is no one solution and that early life matters for building cows resilient to climate change. (43:54 – End) Throughout the episode, the panel reinforces a central message: cooling remains essential, but it is not enough on its own, and pairing good management with targeted nutrition across every life stage offers the greatest opportunity. If you enjoyed this episode, subscribe and share it with your industry colleagues so they can join us at the Real Science Exchange virtual pub table.  Don't forget to register for our upcoming Real Science Lecture Series webinars. Finally, if you want one of our Real Science Exchange t-shirts, screenshot your rating, review, or subscription. Then, email a picture to anh.marketing@balchem.com. Include your size and mailing address, and we'll mail you a shirt.

  2. Oct 8

    Student Showcase Genetic influence on Colostrum Yield & Composition

    The episode opens with introductions. Dr. Santos, who has been at the University of Florida for almost 20 years, explains that Giovanna's undergraduate mentor at the University of São Paulo was his friend from grad school at the University of Arizona. She came to Florida with high recommendations after an externship at the University of Georgia. (00:00 – 03:06) The discussion then shifts to Giovanna's study design. The data set included over 4,000 animals across 11 experiments and 38 treatments. About 21 phenotypic factors, including calving season, parity, dry period length, calf birth body weight, cow body weight, retained placenta and metritis, were first tested in univariable models. Factors with P ≤ 0.20 moved forward, and those with P ≤ 0.10 were kept in the final models for colostrum yield, fat and IgG. (03:07 – 05:01) Giovanna then shares the colostrum yield results. Cows produced more colostrum in fall and summer, multiparous cows produced more, and a longer dry period was positively associated with yield. Surprisingly, dry matter, metabolizable protein and net energy intake had no significant association with colostrum yield, and the slope was actually negative. Cows that produced more colostrum also performed better in the first 10 weeks of the next lactation. (05:02 – 06:52) A key theme of the episode is questioning the common advice to feed more protein before calving when colostrum is poor. Dr. Santos notes that cows eating 800 g of metabolizable protein showed no difference in colostrum yield compared with cows eating 1,400 g. He calls the strong genetic component, with moderate to high heritability, the nicest finding. It suggests cows could potentially be selected for better colostrum yield and composition, possibly as a trait separate from milk yield. (06:53 – 10:11) The conversation also covers the biology behind colostrum IgG. It's still unknown whether colostrum IgG comes only from maternal blood or also from plasma cells in the mammary gland. Giovanna hopes to use RNA sequencing of the placenta to see whether a missing Fc receptor explains why IgG doesn't cross it. She also plans nutritional experiments to see whether specific nutrients change colostrum IgG. (10:12 – 13:01) Next, Giovanna shares her plans to pursue a PhD and likely work in industry in the U.S. Dr. Santos points out research gaps, including limited data on immunoglobulin transporters in the ruminant placenta and how colostrum is made in ruminants. Much of that data currently comes from laboratory animals. (13:02 – End) Please subscribe and share this episode with your industry colleagues and invite them to join us at the Real Science Exchange virtual pub table. Be sure to register for upcoming Real Science Lecture Series webinars to continue the conversation. Finally, if you'd like a Real Science Exchange t-shirt, screenshot your rating, review, or subscription and email it to anh.marketing@balchem.com with your size and mailing address, and we'll send one your way.

  3. Oct 6

    Impact of Diet and Management on Gastrointestinal Barrier Integrity

    Host Scott Sorrell is joined by co-host Dr. Laura Nihus (Balchem), Dr. Bill Weiss, and Steve Massie (Renaissance Nutrition) for a wide-ranging discussion on heat stress, leaky gut biology, transition cow management, inflammation, precision technologies, and the future of dairy cow health monitoring. The conversation opens with introductions and backgrounds from the panel, highlighting decades of experience in dairy nutrition and physiology before transitioning into Dr. Baumgard’s research focus on stress biology across multiple species. (00:00 – 05:59) Dr. Baumgard explains how his work evolved from studying heat stress in dairy cows to investigating broader mechanisms of stress physiology. Drawing from military and human medical research, he describes how heat stress can compromise gastrointestinal barrier function and how similar biological responses occur across species. (06:00 – 10:19) The discussion explores the distinction between short-duration heat exposure used therapeutically, such as sauna treatments, and prolonged heat stress that negatively affects animal health and performance. The panel reviews how different stressors can influence metabolism, gut function, and animal productivity. (10:20 – 12:08) Attention then shifts to the biological relationship between psychological stress, gut health, and immune activation. Dr. Baumgard describes evolutionary explanations for stress responses, including reduced feed intake, vomiting, diarrhea, and shifts in gastrointestinal function as defense mechanisms against pathogens. (12:09 – 15:52) The panel examines how stress can alter gut microbial populations, reduce mucin production, increase gut permeability, and potentially promote pathogen growth and shedding. These changes help explain why stress frequently precedes disease challenges in dairy cattle and other species. (15:53 – 18:03) A major topic throughout the discussion is the distinction between sterile inflammation and pathogenic inflammation. Sterile inflammation is a normal and necessary process associated with events such as calving and tissue remodeling, while pathogenic inflammation arises from infections or disease challenges. The panel discusses why differentiating between these two forms of inflammation is critical for developing effective prevention and treatment strategies. (18:04 – 24:37) The conversation also touches on unexpected findings involving respiratory disease and lung pathology in transition cows. Dr. Baumgard shares observations suggesting that undetected respiratory issues may contribute to health problems more often than previously recognized. (21:03 – 23:21) The panel then explores the future of precision dairy technologies. Feed intake monitoring systems, rumen boluses, activity collars, milk production records, and emerging predictive technologies may help identify health challenges days before clinical signs become obvious. The group discusses how these tools could transform transition cow management and disease detection. (24:38 – 29:43) Individual variation among cows becomes another central theme. The speakers discuss why some animals appear more resilient to stress than others, even when exposed to identical environments and management conditions. They consider possible roles for personality traits, behavior, physiology, and individual adaptability. (29:44 – 32:40) Management practices remain at the core of the conversation. The panel highlights transition cow overcrowding, facility limitations, feeding consistency, cow comfort, and overall farm environment as major contributors to stress and health outcomes. (32:41 – 35:41) Additional discussion focuses on repeated versus stacked stressors, anti-inflammatory interventions, the role of inflammation in normal biology, and the challenge of balancing beneficial and excessive inflammatory responses. (35:42 – 40:35) The group also reviews emerging industry tools such as the Fresh Cow Index (FCI) and discusses how milk production may serve as one of the most practical biomarkers of health available to dairy producers today. (40:36 – 43:33) Throughout the episode, the panel emphasizes a central message: many of the biggest opportunities for improving cow health, resilience, and performance are rooted in management rather than nutrition alone. Reducing avoidable stressors, improving transition cow environments, and leveraging new technologies may ultimately provide the greatest gains in animal health and productivity. Join nutritionists, researchers, veterinarians, and producers from around the world as they explore the latest science shaping the future of animal agriculture. Subscribe to the Real Science Exchange Podcast, share this episode with your colleagues, and register for upcoming Real Science Lecture Series webinars. Screenshot your podcast subscription, review, or rating and email it to anh.marketing@balchem.com. Include your shirt size and mailing address, and we'll send you a Real Science Exchange t-shirt while supplies last.

  4. Sep 29

    Vitamin D Nutrition & Phosphorus in Calcium Homeostasis in Ruminants

    The conversation begins with introductions and an overview of Dr. Wilkens' research examining vitamin D biology across ruminants and other livestock species. It is explained that vitamin D should not be viewed solely as a vitamin but rather as the precursor to a highly regulated steroid hormone system with complex feedback mechanisms that influence numerous physiological processes throughout the body. The panel discusses how activation and regulation of vitamin D metabolism affects livestock health and why a deeper understanding of these pathways continues to be important for both researchers and nutritionists (00:00 – 06:59). Building on that foundation, the discussion explores emerging areas of vitamin D research beyond its traditional role in preventing rickets and supporting skeletal development. Evidence suggesting vitamin D may influence muscle function, recovery, immune responses, and other physiological systems is reviewed. However, the panel also emphasizes that caution should be exercised when interpreting observational studies, since associations do not necessarily establish causation. Consequently, additional controlled research is believed to be necessary before broader conclusions can be drawn (07:00 – 10:33). Attention then turns to one of the most frequently debated questions in mineral nutrition: what constitutes an optimal vitamin D status in modern dairy cattle. Plasma 25-hydroxyvitamin D concentrations are discussed as a common biomarker, yet challenges remain when attempting to define ideal target values. Furthermore, differences observed between pasture-raised and indoor-housed animals are examined, illustrating the complexity of developing universal recommendations. As dairy production systems continue to evolve, uncertainty remains regarding the most appropriate vitamin D supplementation strategies for high-producing livestock (10:34 – 16:47). The relationship between vitamin D, calcium, phosphorus, and vitamin K is subsequently explored. Questions surrounding vitamin K2 supplementation, calcium transport mechanisms, and mineral metabolism are discussed in detail. In addition, species-specific differences are highlighted as an important factor that complicates the development of broad nutritional recommendations across animal populations (16:48 – 18:38). A major focus of the episode centers on phosphorus management and transition cow health. Dr. Wilkens and the panel discuss phosphorus binders and their potential role in hypocalcemia prevention by influencing calcium homeostasis. The biological mechanisms linking phosphorus restriction and calcium metabolism are examined, while practical questions regarding implementation and effectiveness are also considered. As a result, listeners gain insight into how phosphorus-binding strategies may complement established approaches used to reduce milk fever risk in dairy herds (18:39 – 21:24). The conversation then shifts toward vitamin D's role in immune function. Research examining the local production of active vitamin D metabolites within immune cells is reviewed, along with evidence suggesting vitamin D status may affect immune responses under specific challenge conditions. While promising findings have been reported, the panel notes that additional work remains necessary to fully understand these relationships and their practical applications in livestock production systems ((21:25 – 23:10). Vitamin D nutrition in calves and young animals is also discussed. Natural vitamin D concentrations found in colostrum and milk are reviewed alongside supplementation strategies commonly used in milk replacers. However, it is noted that much of the available research focuses primarily on preventing classical deficiency diseases, while comparatively little information exists regarding optimal vitamin D levels for growth, immunity, and overall performance in young animals. Consequently, significant opportunities for future research continue to exist in this area (23:11 – 27:16). The episode also addresses vitamin D toxicity and excessive supplementation. Toxicity thresholds, elevated circulating 25-hydroxyvitamin D concentrations, and clinical observations from cattle and camelid species are examined. Furthermore, the panel discusses how different vitamin D metabolites can contribute to both intended physiological responses and unintended consequences when supplementation exceeds biological requirements (27:17 – 35:24). A detailed conversation follows regarding the practical implementation of phosphorus binders in transition cow programs. Drawing from commercial field experiences, Dr. Schwab shares insights regarding dosage recommendations, monitoring strategies, lessons learned, and the potential risks associated with excessive phosphorus restriction. The panel also discusses how phosphorus binders are currently being utilized in commercial settings and where additional research is still needed to better define best practices (35:25 – 46:25). The discussion then broadens beyond dairy cattle to examine phosphorus metabolism across species. Emerging concerns related to phosphorus consumption, kidney health, feline nutrition, and species-specific mechanisms of phosphorus absorption and regulation are explored. These comparisons provide valuable perspective on how findings from companion animal and human nutrition research may help guide future investigations in livestock species (46:26 – 50:53). The episode concludes with reflections from each panelist on the future of vitamin D and mineral nutrition research. The complexity of vitamin D biology is emphasized throughout the discussion, while the need for additional dose-response studies is repeatedly highlighted. Similarly, the value of integrating field observations with mechanistic science is reinforced. Ultimately, continued collaboration among academia, industry, nutritionists, veterinarians, and producers is viewed as essential for advancing nutritional understanding and improving animal health outcomes (50:54 – 56:05). Continue the Conversation at the Real Science Exchange As new research continues to emerge in dairy nutrition and transition cow management, the Real Science Exchange podcast remains committed to bringing science-based discussions directly to industry professionals. If this episode was found valuable, it is encouraged to be shared with colleagues, nutritionists, veterinarians, researchers, and producers throughout the dairy industry. Please subscribe and share with your industry friends. This helps increase awareness of topics like the impact of excess liver copper concentrations. Invite more people to join us at the Real Science Exchange virtual pub table. Please be sure to register for our upcoming Real Science Lecture Series. If you'd like a Real Science Exchange t-shirt, leave a review, subscribe to the podcast, and email a screenshot along with your size and mailing address to anh.marketing@balchem.com.

  5. Sep 22

    Responses to Amino Acid and Energy Supply in Fresh and High-Producing Cows

    IntroductionThe episode opens with introductions of Dr. Jonas de Souza, Steve Martin, and Dr. Ben Wenner, who discuss their backgrounds and experiences in dairy nutrition. The panel outlines the key topics shaping modern dairy nutrition, including fresh cow management, nutrient utilization, amino acid balancing, and the industry's growing adoption of response-based nutrition models designed to improve biological and economic outcomes. (00:00 – 03:26) Fresh Cow Management in the Real WorldDrawing on both research and field experience, the panel discusses transition cow management, fresh pen logistics, cow flow, and the operational challenges producers face when trying to maintain intake and health during early lactation. The speakers emphasize that successful fresh cow programs depend on both sound nutrition and consistent management practices. (09:06 – 18:56) Why Academic Dairy Science Fails in Real-World OperationsOne of the most engaging conversations centers on the gap between controlled university research and commercial dairy production. The panel explains how labor, facilities, stocking density, cow comfort, and day-to-day management practices often influence outcomes as much as nutrition itself, reinforcing the need to translate research into practical, farm-ready recommendations. (09:06 – 16:06) Regional Differences in Dairy ManagementThe discussion explores how climate, labor availability, facility design, and production systems influence fresh cow performance across different regions. The speakers stress the importance of tailoring nutritional recommendations to each dairy rather than applying a one-size-fits-all approach. (18:56 – 24:06) Why Feeding Methionine to Fresh Dairy Cows Is So ComplicatedMethionine is one of the most studied amino acids in dairy nutrition, but applying recommendations in fresh cows remains challenging. The panel examines variable dry matter intake, energy balance, and the metabolic demands of early lactation that make amino acid balancing so complex. (16:11 – 24:04) Energy Supply, Fermentable Starch, and Dietary FatMuch of the discussion focuses on how energy drives production response. The panel discusses the relationship between fermentable starch, propionate production, nutrient partitioning, and milk production while examining how dietary fat and fatty acid profiles influence feed efficiency and performance. (24:06 – 31:39) Should You Feed Fat and Fatty Acids to Fresh Cows?The speakers evaluate the benefits and limitations of supplementing fat during the transition period, discussing how different fatty acid sources can impact energy balance, milk production, and fresh cow performance. (28:17 – 33:59) Amino Acids for Dairy Cows: Lysine, Methionine, or Histidine?As amino acid nutrition continues to evolve, the panel explores emerging research on amino acid balancing and discusses the roles of lysine, methionine, and histidine in supporting performance. Dr. de Souza reviews amino acid response models and essential amino acid targets while the panel shares practical perspectives from commercial dairy operations. (35:19 – 43:46) Response Curves, Digestibility, and Return on InvestmentThe conversation turns to nonlinear optimization, nutrient digestibility, response curves, and economic returns. The speakers explain how these tools can help nutritionists improve efficiency and profitability while making more informed feeding decisions. (42:07 – 55:14) The Surprising Truth About Palmitic Acid and Fiber DigestionThe panel explores how fatty acid profiles influence rumen function, fiber digestion, nutrient utilization, and production responses in high-producing dairy cows. The discussion highlights the complexity of balancing energy and fiber utilization while maximizing milk production and feed efficiency. (49:13 – 56:23) Final Insights and Future DirectionsThe discussion concludes with insights on body condition scoring, herd monitoring tools, tracer cows, protein sourcing, muscle mobilization, and the future of dairy nutrition. Dr. Jonas de Souza, Steve Martin, and Dr. Ben Wenner emphasize the importance of combining research findings with practical farm experience to maximize cow performance, feed efficiency, and profitability while continuing to refine amino acid and energy nutrition strategies for modern dairy herds. (56:23 – 1:10:04) ConclusionPlease subscribe and share with your industry friends. Invite more people to join us at the Real Science Exchange virtual pub table. Please be sure to register for our upcoming Real Science Lecture Series webinars for additional science-based insights from leading researchers, nutritionists, and industry experts. Finally, if you would like one of our Real Science Exchange t-shirts, screenshot your rating, review, or subscription and email a picture to anh.marketing@balchem.com. Include your shirt size and mailing address, and we'll mail you a shirt.

  6. Sep 15

    Feeding for Success: Aligning Dairy Nutrition with Genetic Potential for Milk Fat

    Recorded live at the Tri-State Dairy Nutrition Conference, this episode of the Real Science Exchange podcast explores one of the biggest opportunities facing modern dairy producers: unlocking the full genetic potential of today's high-producing cows through nutrition. The conversation opens with introductions and a discussion of each speaker's background in dairy nutrition, fatty acid research, and commercial consulting. Dr. Bales shares insights from her graduate research on oleic acid and high-oleic soybeans, while Nate Elzinga discusses lessons learned working directly with dairy operations across Michigan. Their combined perspectives set the stage for understanding how science and practical farm management intersect. (00:00 - 05:31) As the discussion progresses, Dr. Lock explains a critical concept shaping the future of dairy nutrition: genetics establish the ceiling for milk fat production, but nutrition, management, and environment determine whether cows actually reach that ceiling. The panel reviews how genomic selection has dramatically accelerated gains in both milk fat and milk protein output, creating new opportunities for producers who can provide nutritional programs capable of supporting these genetically advanced animals. (05:32 - 08:31) While new technologies continue to emerge, the speakers repeatedly emphasize that forage quality remains the foundation of milk fat production. Success starts with highly digestible fiber, proper hybrid selection, timely harvest, and preserving forage quality throughout storage and feeding. High-producing cows can only express their genetic potential when the nutritional base of the diet is optimized. The panel discusses how forage management decisions often have a greater impact on long-term performance than any single feed additive or nutritional intervention. (08:32 - 11:03) The conversation naturally transitions into the role of fatty acid nutrition. Research continues to demonstrate that milk fat responses depend not simply on feeding more fat but on delivering the right fatty acid profile. The group discusses the growing use of palmitic acid, oleic acid, and high-oleic soybeans, highlighting how different fatty acid sources influence milk fat production and overall cow performance. (11:04 - 13:27) Building on that discussion, Dr. Lock introduces a more advanced framework for evaluating milk fat synthesis. Rather than focusing solely on dietary fat inclusion, he explains the importance of understanding fatty acid requirements on a molar basis. This perspective draws attention to the crucial role of de novo fatty acid synthesis within the mammary gland and reinforces how rumen fiber digestion supplies acetate and butyrate, two key building blocks needed to support increasing milk fat output. The message is clear: healthy rumen function remains essential for maximizing milk components. (12:18 - 16:10) From there, the discussion shifts to transition cow management and the lasting impact of nutritional interventions during early lactation. The panel reviews research demonstrating that nutrition strategies implemented during the first few weeks after calving can influence milk yield, energy-corrected milk production, body condition, and overall lactation performance long after the treatment period ends. The fresh cow period presents a unique opportunity to establish the trajectory for an entire lactation. (16:11 - 21:41) Several studies discussed during the episode evaluate combinations of higher metabolizable protein diets, protected amino acids, palmitic acid supplementation, and high-oleic soybeans. Results suggest that strategically combining these nutritional tools during early lactation may create additive responses that improve performance well beyond the immediate treatment window. (19:24 - 23:33) Despite the strong biological responses observed with many premium nutrition programs, implementation ultimately depends on economics. The speakers discuss how milk prices, feed costs, and return-on-investment considerations influence producer decision-making. Even when nutritional technologies deliver measurable improvements in milk fat production, adoption can be challenging during periods of reduced profitability. (23:34 - 24:29) As the episode concludes, the panel looks toward emerging opportunities in dairy nutrition, including amino acid balancing beyond lysine and methionine, evolving nutrition models, nutrient interactions between amino acids and fatty acids, and future strategies for optimizing milk components. Continued innovation will be necessary as dairy genetics continue advancing at a remarkable pace. (24:30 - 33:35) Throughout the discussion, one message remains consistent: maximizing milk fat production requires far more than adding supplemental fat to a ration. Success depends on integrating genetics, forage quality, rumen function, fatty acid nutrition, amino acid balancing, and transition cow management into a comprehensive feeding strategy. When these factors work together, dairy producers can better position their herds to capture the full value of today's remarkable genetic progress. Join dairy nutritionists, researchers, veterinarians, and producers from around the world as they explore the latest science shaping the future of animal agriculture. Subscribe to the Real Science Exchange Podcast, share this episode with your colleagues, and register for upcoming Real Science Lecture Series webinars. Screenshot your podcast subscription, review, or rating and email it to anh.marketing@balchem.com. Include your shirt size and mailing address, and we'll send you a Real Science Exchange t-shirt while supplies last.

  7. Sep 8

    Replacing Soy Protein with DDGS in Dairy Diets

    The episode opens with a discussion of the Florida Ruminant Nutrition Conference, one of the dairy industry's leading educational events. Dr. Santos reflects on the conference's growth, its practical focus on dairy nutrition, and the diverse international audience of researchers, nutritionists, and industry professionals it attracts each year. The speakers also discuss the critical role industry partnerships play in advancing applied dairy nutrition research and delivering science-based solutions to producers. (00:00 – 03:30) Sebastian Salvatierra shares his educational background and his journey into graduate research at the University of Florida. He describes how his passion for dairy nutrition and applied research led him to investigate the use of DDGS as an alternative protein source for lactating dairy cows under the mentorship of Dr. Santos. (03:31 – 06:27) Why Evaluate DDGS as a Soybean Protein Replacement? The conversation shifts to the scientific rationale behind the project. The researchers hypothesized that replacing soybean-derived protein with protein supplied by DDGS could maintain dairy cow productivity while potentially reducing methane emissions. The discussion explores how the unsaturated fatty acids found in DDGS may act as hydrogen sinks during rumen fermentation, helping reduce methane production without compromising animal performance. (06:28 – 07:56) Study Design and Experimental Approach Sebastian explains the research methodology used to evaluate DDGS inclusion rates in dairy cow diets. The trial included multiple dietary treatments along with extensive measurements of production performance, blood metabolites, rumen fermentation characteristics, nutrient digestibility, and methane emissions. Importantly, the study was designed to reflect practical commercial feeding situations rather than highly controlled laboratory conditions, increasing the relevance of the results to real-world dairy operations. (07:57 – 08:31) Effects of DDGS on Milk Production and Performance Results from the study indicated that increasing DDGS inclusion did not negatively affect dry matter intake. While milk production increased modestly as DDGS replaced soybean protein, reductions in milk fat and milk protein concentrations influenced energy-corrected milk production in some treatment groups. The panel discusses possible explanations, including effects on ruminal fiber digestion, fatty acid metabolism, and milk fat synthesis. (08:32 – 09:51) Growing Importance of DDGS in Global Dairy Nutrition Dr. Santos provides broader industry context, highlighting the growing availability of DDGS in both the United States and Brazil as ethanol production expands. As a major co-product of the ethanol industry, DDGS continues to gain attention as a cost-effective feed ingredient that can contribute valuable protein, energy, and digestible nutrients to dairy rations. (09:52 – 11:02) DDGS and Methane Reduction Opportunities A major focus of the research centers on the relationship between dietary fat, rumen fermentation, and methane emissions. Preliminary findings suggest that moderate inclusion levels of DDGS reduced methane production while maintaining overall animal performance. The researchers also discuss ongoing efforts to evaluate digestible energy, metabolizable energy, and overall production efficiency associated with these dietary substitutions. (11:03 – 13:48) Amino Acid Balancing and Practical Diet Formulation The panel explains how the experimental diets were formulated using rumen-protected amino acids, including lysine and methionine, to maintain amino acid supply despite changing protein sources. The discussion emphasizes the importance of formulating diets that mirror practical commercial conditions so researchers can generate results that nutritionists and producers can confidently apply on farm. (13:49 – 15:54) Understanding Variability in DDGS Quality Not all DDGS sources are created equal. The speakers discuss how nutrient composition, sulfur concentrations, fatty acid profiles, and protein characteristics can vary considerably depending on ethanol plant processes and grain sources. As a result, ingredient evaluation, laboratory analysis, and quality control remain essential when incorporating DDGS into dairy nutrition programs. (15:55 – 18:26) Economic and Sustainability Benefits of Feeding DDGS Beyond nutrition, the researchers discuss the broader sustainability implications of incorporating DDGS into dairy cow diets. By effectively utilizing a major co-product from ethanol production, dairy producers can support circular agriculture systems while potentially reducing feed costs. The panel notes that converting co-products into nutrient-dense foods such as milk represents an efficient use of agricultural resources and contributes to overall feed system sustainability. (18:27 – 22:46) Digestibility and Protein Utilization Research Additional research is underway to better understand how DDGS influences protein digestibility, amino acid availability, and nutrient utilization. Because DDGS undergoes heat processing during manufacturing, protein characteristics can differ from other protein sources, potentially affecting utilization efficiency and helping explain some of the production responses observed in this study. (22:47 – 24:01) Future Research and Industry Collaboration The episode concludes with Sebastian discussing his future academic goals, including plans to pursue a PhD at the University of Florida. Dr. Santos and Dr. Marinho also highlight the importance of continued collaboration between universities and industry partners to advance dairy nutrition science, improve sustainability, and support the development of practical feeding solutions for dairy producers worldwide. (24:02 – 32:32) Conclusion Please subscribe and share with your industry friends. Invite more people to join us at the Real Science Exchange virtual pub table. Please be sure to register for our upcoming Real Science Lecture Series webinars. Finally, if you want one of our Real Science Exchange t-shirts, screenshot your rating, review, or subscription, and email a picture to anh.marketing@balchem.com. Include your size and mailing address, and we’ll mail you a shirt.

  8. Sep 1

    Precision Dairy: Translating Monitor Outputs into Actionable Decision-Making Tools

    The conversation begins with introductions from experts specializing in dairy genetics, reproductive management, transition cow health, and calf monitoring technologies, providing insight into how precision dairy tools are being applied across the dairy industry. 0:00-6:21 The panel then explores the evolution of computer vision and artificial intelligence, discussing how modern dairy technologies are moving beyond simple data collection to deliver actionable insights that help producers solve real-world challenges. They also examine technology adoption trends, workforce development, and the barriers farms continue to face, including connectivity and technical support. 9:32-24:08 A major focus of the discussion is precision health monitoring for transition cows and calves. The experts explain why the transition period remains one of the most critical opportunities for intervention and how emerging technologies can help identify animals needing attention while addressing the challenges of managing "yellow cows" that fall between healthy and sick. 24:08-36:11 Looking toward the future, the panel explores digital twin technology, genetic considerations, calf health monitoring, audio sensing, and innovative approaches such as Wi-Fi-based cattle monitoring systems. The discussion highlights how these emerging technologies may further advance precision dairy management in the coming years. 36:11-45:55 The episode concludes with a discussion on dairy welfare monitoring, AI model development, and reinforcement learning, emphasizing the importance of transforming large amounts of farm data into meaningful information that supports animal wellbeing and management decisions. 46:41-52:10 Please subscribe and share with your industry friends. Invite more people to join us at the Real Science Exchange virtual pub table. Please be sure to register for our upcoming Real Science Lecture Series webinars. Finally, if you want one of our Real Science Exchange t-shirts, screenshot your rating, review, or subscription. Then, email a picture to anh.marketing@balchem.com. Include your size and mailing address, and we’ll mail you a shirt.

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About

Balchem Real Science Exchange isn’t just any old boring podcast. You’ll get to know top researchers like you’ve never known them before. Go behind the scenes and hear the conversations that take place over a few drinks with friends. Join us as we discuss the hot topics in animal science and share a range of new ideas.

Information

  • Creator
    Balchem Animal Nutrition & Health
  • Years Active
    2020 - 2026
  • Episodes
    233
  • Rating
    Clean
  • Copyright
    © 2020 Balchem Animal Nutrition & Health
  • Show Website
    Real Science Exchange-Dairy

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