Dr. Chris Chase: Gut Health & Immunity in Cows | Ep. 88

In this episode of The Dairy Nutrition Blackbelt Podcast, Dr. Pedro Melendez from City University of Hong Kong discusses the genetic and nutritional factors behind abdominal adiposity and hypocalcemia in dairy cows. He shares research findings on metabolic health risks, prevention strategies, and the importance of monitoring nutritional management. Listen now on all major platforms!"Abdominal adiposity significantly increases the risk of developing metabolic disorders such as mastitis, ketosis, and fatty liver."Meet the guest: Dr. Pedro Melendez, DVM, MS, PhD, DABVP (Dairy), serves as Clinical Full Professor in Bovine Production Medicine at City University of Hong Kong. With a DVM from the University of Chile and an MS and PhD from the University of Florida, his work focuses on dairy production medicine, nutritional management, and metabolic diseases in dairy cattle.Liked this one? Don’t stop now — Here’s what we think you’ll love!What will you learn: (00:00) Highlight(01:26) Introduction(01:00) Guest background(02:16) Abdominal adiposity risks(05:27) Genetic factors role(07:00) Preventing hypocalcemia(09:26) Calcium bolus use(10:50) Closing thoughtsThe Dairy Nutrition Blackbelt Podcast is trusted and supported by the innovative companies:* Adisseo* Kemin* Priority IAC- Zinpro- Afimilk- Volac- Virtus Nutrition𝗟𝗶𝘀𝘁𝗲𝗻 𝗼𝗻 𝗔𝗽𝗽𝗹𝗲 𝗣𝗼𝗱𝗰𝗮𝘀𝘁𝘀, 𝗦𝗽𝗼𝘁𝗶𝗳𝘆 𝗼𝗿 𝗮𝗻𝘆 𝗺𝗮𝗷𝗼𝗿 𝗽𝗹𝗮𝘁𝗳𝗼𝗿𝗺.Website: The Dairy Nutrition Blackbelt PodcastInstagram: The Dairy Nutrition Blackbelt PodcastLinkedIn: The Dairy Nutrition Blackbelt Podcast

In this episode of The Dairy Nutrition Blackbelt Podcast, Dr. Chris Chase, Professor Emeritus at South Dakota State University, breaks down the critical link between gut health and immune function in dairy cattle. He covers how diet, water quality, and stress impact gut integrity and the pro-inflammatory response, plus practical strategies to support a healthy microbiome. Listen now on all major platforms!"The gut microbiome and immune system are deeply connected. Maintaining this balance through diet and management is key to animal health."Meet the guest: Dr. Chris Chase, Professor Emeritus at South Dakota State University, has dedicated his career to veterinary immunology and virology. He earned his DVM from Iowa State University and his MS and PhD from the University of Wisconsin-Madison. Dr. Chase co-founded RTI (Research, Technology Innovation LLC), now ClinVet-South Dakota, an animal health research organization. Dr. Chase is the Past-President of the American College of Veterinary Microbiology and the Conference of Research Workers in Animal Disease.What will you learn: (00:00) Highlight(01:46) Introduction(03:12) Gut health and immunity(05:51) Role of water quality(07:06) Stress and gut integrity(09:33) Additives for gut health(13:35) Key takeaways(16:16) Closing thoughtsThe Dairy Nutrition Blackbelt Podcast is trusted and supported by the innovative companies: Volac* Adisseo- Virtus Nutrition- Zinpro- Afimilk- Kemin- Priority IAC𝗟𝗶𝘀𝘁𝗲𝗻 𝗼𝗻 𝗔𝗽𝗽𝗹𝗲 𝗣𝗼𝗱𝗰𝗮𝘀𝘁𝘀, 𝗦𝗽𝗼𝘁𝗶𝗳𝘆 𝗼𝗿 𝗮𝗻𝘆 𝗺𝗮𝗷𝗼𝗿 𝗽𝗹𝗮𝘁𝗳𝗼𝗿𝗺.Website: The Dairy Nutrition Blackbelt PodcastInstagram: The Dairy Nutrition Blackbelt PodcastLinkedIn: The Dairy Nutrition Blackbelt Podcast

In this episode of The Dairy Nutrition Blackbelt Podcast, Dr. Duarte Diaz from the University of Arizona tackles the complex issue of mycotoxins in dairy feeds. He explores how mycotoxin contamination levels vary by region, season, and climate and how different feedstuffs, besides corn silage, are at high risk. Dr. Diaz also shared insights on testing frequency for mycotoxins and strategies for preventing contamination and growth in stored feed. Additionally, he discusses the role of feed additives and binders in mitigating the harmful effects of mycotoxins. Listen now on all major platforms!"Mycotoxins interact with the plant, soil, and environment. Depending on the mold, climate, and competition, certain species dominate in different regions."Meet the guest: Dr. Duarte Diaz holds an M.S. and Ph.D. in Nutrition and Toxicology from North Carolina State University. With over 15 years of research on mycotoxins, Dr. Diaz has made significant contributions to understanding how mycotoxins affect agriculture. He is currently a Professor and Dairy Extension Specialist at the University of Arizona. Dr. Diaz’s work focuses on feed quality, mold interactions, and mycotoxin control.Liked this one? Don’t stop now — Here’s what we think you’ll love:Dr. Marcos Marcondes: Protein Requirements of Gestating Cows | Ep. 44Dr. Jim Drackley: Nutrition & Transition Cows - Part 1 | Ep. 52Dr. Maurice Eastridge: Nutrition & Cow Health | Ep. 69What will you learn: (00:00) Highlight(01:47) Introduction(03:06) Mycotoxins by region(05:44) Common contaminated feeds(08:46) Diagnosing mycotoxin issues(10:54) Testing for mycotoxins(12:07) Dietary interventions(15:37) Closing thoughtsThe Dairy Nutrition Blackbelt Podcast is trusted and supported by the innovative companies:* Adisseo- Kemin- Virtus Nutrition- Zinpro- Volac- Afimilk𝗟𝗶𝘀𝘁𝗲𝗻 𝗼𝗻 𝗔𝗽𝗽𝗹𝗲 𝗣𝗼𝗱𝗰𝗮𝘀𝘁𝘀, 𝗦𝗽𝗼𝘁𝗶𝗳𝘆 𝗼𝗿 𝗮𝗻𝘆 𝗺𝗮𝗷𝗼𝗿 𝗽𝗹𝗮𝘁𝗳𝗼𝗿𝗺.Website: The Dairy Nutrition Blackbelt PodcastInstagram: The Dairy Nutrition Blackbelt PodcastLinkedIn: The Dairy Nutrition Blackbelt Podcast

In this second part of The Dairy Nutrition Blackbelt Podcast episode with Dr. Claira Seely, from the University of New Hampshire, she discusses identifying metabolic disorders and diagnosing subclinical hypocalcemia in dairy cows. She also highlights effective prevention strategies, focusing on key nutritional approaches like negative DCAD rations and the use of calcium binders. Listen now on all major platforms!"Low blood calcium at four days in milk will give you a better idea of what percent of your herd is experiencing a calcium issue."Meet the guest: Dr. Claira Seely is an Assistant Professor of Precision Dairy Management at the University of New Hampshire. With a PhD in Dairy Science from Cornell University, Dr. Seely's research focuses on transition cow biology and precision technology integration.Click here to read the full research articles:The association of subclinical hypocalcemia at 4 days in milk with reproductive outcomes in multiparous Holstein cowsAssociation of transient, persistent, or delayed subclinical hypocalcemia with early lactation disease, removal, and milk yield in Holstein cowsAssociation of subclinical hypocalcemia dynamics with dry matter intake, milk yield, and blood minerals during the periparturient periodWhat will you learn: (00:00) Highlight(01:32) Introduction(01:19) Diagnosing subclinical hypocalcemia(02:16) Prevention strategies(03:25) Negative DCAD and zeolite(04:54) Oral boluses(05:46) Delayed bolus administration(08:06) Closing thoughtsThe Dairy Nutrition Blackbelt Podcast is trusted and supported by the innovative companies:* Adisseo- Afimilk- Kemin- Virtus Nutrition- Zinpro- Volac𝗟𝗶𝘀𝘁𝗲𝗻 𝗼𝗻 𝗔𝗽𝗽𝗹𝗲 𝗣𝗼𝗱𝗰𝗮𝘀𝘁𝘀, 𝗦𝗽𝗼𝘁𝗶𝗳𝘆 𝗼𝗿 𝗮𝗻𝘆 𝗺𝗮𝗷𝗼𝗿 𝗽𝗹𝗮𝘁𝗳𝗼𝗿𝗺.Website: The Dairy Nutrition Blackbelt PodcastInstagram: The Dairy Nutrition Blackbelt PodcastLinkedIn: The Dairy Nutrition Blackbelt Podcast

In this episode of The Dairy Nutrition Blackbelt Podcast, Dr. Claira Seely, from the University of New Hampshire, sheds light on the evolving understanding of subclinical hypocalcemia in dairy cattle. Dr. Seely explains how the understanding of this condition has evolved over time, especially in diagnosing it at the right moment. Learn how the timing of calcium monitoring can impact milk production, reproduction, and overall cow health. Listen now on all major platforms!"Cows with low blood calcium at four days in milk produced significantly less milk and had lower reproductive success."Meet the guest: Dr. Claira Seely is an Assistant Professor of Precision Dairy Management at the University of New Hampshire. With a PhD in Dairy Science from Cornell University, Dr. Seely's research focuses on transition cow biology and precision technology integration.Click here to read the full research articles:The association of subclinical hypocalcemia at 4 days in milk with reproductive outcomes in multiparous Holstein cowsAssociation of transient, persistent, or delayed subclinical hypocalcemia with early lactation disease, removal, and milk yield in Holstein cowsAssociation of subclinical hypocalcemia dynamics with dry matter intake, milk yield, and blood minerals during the periparturient periodWhat will you learn: (00:00) Highlight(01:21) Introduction(01:03) Guest background(02:59) Hypocalcemia insights(04:16) Diagnosis timing for hypocalcemia(05:26) Blood calcium dynamics(07:49) Reproductive and intake effects(09:05) Closing thoughtsThe Dairy Nutrition Blackbelt Podcast is trusted and supported by the innovative companies:* Adisseo- Zinpro- Volac- Afimilk- Kemin- Virtus Nutrition𝗟𝗶𝘀𝘁𝗲𝗻 𝗼𝗻 𝗔𝗽𝗽𝗹𝗲 𝗣𝗼𝗱𝗰𝗮𝘀𝘁𝘀, 𝗦𝗽𝗼𝘁𝗶𝗳𝘆 𝗼𝗿 𝗮𝗻𝘆 𝗺𝗮𝗷𝗼𝗿 𝗽𝗹𝗮𝘁𝗳𝗼𝗿𝗺.Website: The Dairy Nutrition Blackbelt PodcastInstagram: The Dairy Nutrition Blackbelt PodcastLinkedIn: The Dairy Nutrition Blackbelt Podcast

In this episode of The Dairy Nutrition Blackbelt Podcast, Dr. Michael VandeHaar from Michigan State University shares insights on bridging nutrition and genetics to breed more efficient dairy cows. He also discusses the upcoming ADSA meeting, highlighting sessions on applied nutrition, feed efficiency, and milk fat optimization. Listen now on all major platforms!"Some cows eat less than expected for whatever reason, and those are the cows we want in the future."Meet the guest: Dr. Michael VandeHaar earned his Ph.D. in Animal Sciences from Iowa State University and has been a Professor at Michigan State University since 1988. With over 35 years of experience, his research focuses on dairy cattle nutrition and improving feed efficiency through genetics. He also teaches mammary physiology and leads major initiatives in the American Dairy Science Association.Liked this one? Don’t stop now — Here’s what we think you’ll love!What will you learn: (00:00) Highlight(01:38) Introduction(03:58) Applied nutrition sessions(06:13) Milk fat and profitability(07:30) Overview of the ADSA(10:25) Nutrition and genetics link(13:28) Methane insights(16:05) Closing thoughtsThe Dairy Nutrition Blackbelt Podcast is trusted and supported by the innovative companies:* Adisseo- Virtus Nutrition- Zinpro- Volac- Afimilk- Kemin𝗟𝗶𝘀𝘁𝗲𝗻 𝗼𝗻 𝗔𝗽𝗽𝗹𝗲 𝗣𝗼𝗱𝗰𝗮𝘀𝘁𝘀, 𝗦𝗽𝗼𝘁𝗶𝗳𝘆 𝗼𝗿 𝗮𝗻𝘆 𝗺𝗮𝗷𝗼𝗿 𝗽𝗹𝗮𝘁𝗳𝗼𝗿𝗺.Website: The Dairy Nutrition Blackbelt PodcastInstagram: The Dairy Nutrition Blackbelt PodcastLinkedIn: The Dairy Nutrition Blackbelt Podcast

In this episode of The Dairy Nutrition Blackbelt Podcast, Jacob Copelin, a ruminant nutritionist, discusses strategies to mitigate milk fat depression in dairy cattle. He breaks down how oils, fatty acids, and branched-chain amino acids (BCAAs) affect milk fat production and rumen health. Jacob also explores how the new CNCPS model and branched-chain volatile fatty acids relate to balancing BCAAs for optimal milk production. Tune in now on all major platforms!"Increasing acetate production means more butterfat, and in theory, more money for dairy producers."What will you learn: (00:00) Introduction(01:53) Milk fat depression(05:03) Isoacids explained(06:20) Fiber digestion(07:40) Research results(12:18) New CNCPS model(16:01) Closing thoughtsMeet the guest:Jacob Copelin, Nutritionist, Consultant, and owner at Arbor-Vale of NDS Consulting, specializes in ruminant nutrition and feeding management. He holds a Master of Science in Animal Nutrition from The Ohio State University. Jacob also teaches as an Associate Faculty at The Ohio State University Agricultural Technical Institute, focusing on cattle nutrition and feeding strategies. Connect with our guest on Social Media: LinkedInClick here to read the full research article!The Dairy Nutrition Blackbelt Podcast is trusted and supported by the innovative companies:* Adisseo* Kemin- Virtus Nutrition- Zinpro- Afimilk-Volac𝗟𝗶𝘀𝘁𝗲𝗻 𝗼𝗻 𝗔𝗽𝗽𝗹𝗲 𝗣𝗼𝗱𝗰𝗮𝘀𝘁𝘀, 𝗦𝗽𝗼𝘁𝗶𝗳𝘆 𝗼𝗿 𝗮𝗻𝘆 𝗺𝗮𝗷𝗼𝗿 𝗽𝗹𝗮𝘁𝗳𝗼𝗿𝗺.Website: The Dairy Nutrition Blackbelt PodcastInstagram: The Dairy Nutrition Blackbelt PodcastLinkedIn: The Dairy Nutrition Blackbelt Podcast

In this episode of The Dairy Nutrition Blackbelt Podcast, Dr. Marcos Marcondes from the William H. Miner Agricultural Research Institute breaks down the science behind milk replacer fat levels for calves and why fat content matters. He explains how milk replacers differ from raw milk in fat concentration, compares the effectiveness of lactose versus fat as energy sources, and highlights the key benefits of high-fat milk replacers for calf health and development. Listen now on all major platforms!"We’re seeing consistent improvements in calf health when feeding a high-fat milk replacer or raw milk compared to a high-lactose milk replacer."(00:00) Introduction(02:13) Fat concentration impact(03:34) Lactose vs fat energy(05:30) Calf health response(06:32) Winter feeding strategies(10:31) Fatty acid composition(14:52) Closing thoughtsMeet the guest:Dr. Marcos Marcondes earned his B.S., M.S., and Ph.D. in Animal Science from the Federal University of Viçosa and completed postdoctoral research at the University of Florida. He currently works at the William H. Miner Agricultural Research Institute as a Dairy Research Scientist. His work focuses on calf nutrition, methane reduction, microbial protein production, and fat sources in milk replacers.Connect with our guest on Social Media: LinkedInClick here to read the full research article!The Dairy Nutrition Blackbelt Podcast is trusted and supported by the innovative companies:- Zinpro- Afimilk* Adisseo* Kemin-Volac- Virtus Nutrition𝗟𝗶𝘀𝘁𝗲𝗻 𝗼𝗻 𝗔𝗽𝗽𝗹𝗲 𝗣𝗼𝗱𝗰𝗮𝘀𝘁𝘀, 𝗦𝗽𝗼𝘁𝗶𝗳𝘆 𝗼𝗿 𝗮𝗻𝘆 𝗺𝗮𝗷𝗼𝗿 𝗽𝗹𝗮𝘁𝗳𝗼𝗿𝗺.Website: The Dairy Nutrition Blackbelt PodcastInstagram: The Dairy Nutrition Blackbelt PodcastLinkedIn: The Dairy Nutrition Blackbelt Podcast

In this episode of The Dairy Nutrition Blackbelt Podcast, Dr. Antonio Gallo, Full Professor at the Catholic University of the Sacred Heart in Italy, discusses mycotoxin contamination in dairy feed, its effects on cow health, and strategies for mitigation. Learn how to detect and manage mycotoxins to protect your herd and milk production. Tune in now on all major platforms!"Contamination can come from multiple sources, even forages, making it essential to monitor quality regularly."Meet the guest: Dr. Antonio Gallo is a Full Professor in Animal Nutrition and Feeding at the Catholic University of the Sacred Heart in Italy. He holds an M.S. and Ph.D. in Animal Science, with research focused on dairy cattle nutrition, feed evaluation, and improving nutrient utilization in dairy production systems. Dr. Gallo has been recognized among the World's Top 2% Scientists by Stanford University.Click here to read the full research articles:Review on Mycotoxin Issues in RuminantsAdverse Effects of Fusarium Toxins in RuminantsStrategies and technologies in preventing regulated and emerging mycotoxin co-contamination in forageWhat will you learn: (00:00) Highlight(01:41) Introduction(03:47) Common mycotoxins in dairy feed(05:56) Sources of contamination(07:50) Effects on cow health and milk(10:31) Strategies for mycotoxin mitigation(14:36) Future research directions(17:09) Closing thoughtsThe Dairy Nutrition Blackbelt Podcast is trusted and supported by the innovative companies:Volac* Adisseo* Kemin- Virtus Nutrition- Zinpro- Afimilk𝗟𝗶𝘀𝘁𝗲𝗻 𝗼𝗻 𝗔𝗽𝗽𝗹𝗲 𝗣𝗼𝗱𝗰𝗮𝘀𝘁𝘀, 𝗦𝗽𝗼𝘁𝗶𝗳𝘆 𝗼𝗿 𝗮𝗻𝘆 𝗺𝗮𝗷𝗼𝗿 𝗽𝗹𝗮𝘁𝗳𝗼𝗿𝗺.Website: The Dairy Nutrition Blackbelt PodcastInstagram: The Dairy Nutrition Blackbelt PodcastLinkedIn: The Dairy Nutrition Blackbelt Podcast

In this episode of The Dairy Nutrition Blackbelt Podcast, Dr. Mutian Niu, Assistant Professor at ETH Zurich, explains exhalomics, an approach for assessing rumen fermentation by analyzing volatile organic compounds in cattle breath. He discusses how this technique can provide valuable insights into rumen function and help improve cattle health monitoring, with potential applications in managing methane emissions and optimizing dairy production. Listen now on all major platforms!"We’re using exhalomics to study the volatile compounds in cattle breath, which provides new insights into ruminant metabolism and health monitoring."Meet the guest: Dr. Mutian Niu is an Assistant Professor of Animal Nutrition at ETH Zurich, Switzerland, specializing in ruminant nutrition and precision livestock farming. He holds a Master’s in Animal Science from Penn State University and a Master’s in Statistics, along with a Ph.D. in Animal Biology from the University of California, Davis. His research integrates data science to enhance sustainability in dairy farming, focusing on methane reduction and efficient nutrient utilization.Click here to read the full research articles:Exhalomics as a noninvasive method for assessing rumen fermentation in dairy cows: Can exhaled-breath metabolomics replace rumen sampling?Exhaled volatile fatty acids, ruminal methane emission, and their diurnal patterns in lactating dairy cowsWhat will you learn: (00:00) Highlight(01:33) Introduction(01:28) What is exhalomics?(03:04) Why study exhalomics?(05:28) Research discoveries(06:55) Rumen fermentation analysis(09:21) Future of exhalomics(12:29) Closing thoughtsThe Dairy Nutrition Blackbelt Podcast is trusted and supported by the innovative companies:* Adisseo- Afimilk- Kemin- Virtus Nutrition- Zinpro- Volac𝗟𝗶𝘀𝘁𝗲𝗻 𝗼𝗻 𝗔𝗽𝗽𝗹𝗲 𝗣𝗼𝗱𝗰𝗮𝘀𝘁𝘀, 𝗦𝗽𝗼𝘁𝗶𝗳𝘆 𝗼𝗿 𝗮𝗻𝘆 𝗺𝗮𝗷𝗼𝗿 𝗽𝗹𝗮𝘁𝗳𝗼𝗿𝗺.Website: The Dairy Nutrition Blackbelt PodcastInstagram: The Dairy Nutrition Blackbelt PodcastLinkedIn: The Dairy Nutrition Blackbelt Podcast