In this episode of The Dairy Nutrition Blackbelt Podcast, Dr. Lance Baumgard, Distinguished Professor at Iowa State University, explains how stress affects gut barrier function and dairy cow productivity. He highlights how immune activation redirects nutrients away from milk synthesis and discusses key stressors like heat, overcrowding, and transition periods. Learn how stacked stressors amplify biological responses and impact performance. Listen now on all major platforms!

"Stress across production systems consistently disrupts gut barrier integrity, allowing harmful compounds to cross into circulation and initiate immune responses that directly reduce dairy cow performance."

Meet the guest: Dr. Lance Baumgard is a Distinguished Professor and Norman L. Jacobson Endowed Professor in Dairy Nutrition at Iowa State University. His research focuses on stress physiology, gut health, and nutrient partitioning in dairy cattle, helping advance understanding of how stress impacts productivity and biological function.

Click here to read the full research article!

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What will you learn:

• (00:00) Highlight
• (01:39) Introduction
• (02:17) Gut barrier
• (03:56) Immune response
• (05:25) Nutrient demand
• (06:52) Glucose priority
• (08:49) Farm stressors
• (12:13) Closing thoughts

The Dairy Nutrition Blackbelt Podcast is trusted and supported by the innovative companies:

* Vetagro

* Kemin

* Adisseo

* Barentz

* Fortiva

- Virtus Nutrition

- DietForge

𝗟𝗶𝘀𝘁𝗲𝗻 𝗼𝗻 𝗔𝗽𝗽𝗹𝗲 𝗣𝗼𝗱𝗰𝗮𝘀𝘁𝘀, 𝗦𝗽𝗼𝘁𝗶𝗳𝘆 𝗼𝗿 𝗮𝗻𝘆 𝗺𝗮𝗷𝗼𝗿 𝗽𝗹𝗮𝘁𝗳𝗼𝗿𝗺.

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In this special re-run episode of The Dairy Nutrition Blackbelt Podcast, we bring back our conversation with Dr. Mutian Niu, Assistant Professor at ETH Zurich, who 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 Zürich, focusing on ruminant nutrition, precision livestock farming, and data science to improve sustainability. He earned his PhD in Animal Sciences and a Master’s in Statistics from UC Davis, with research on methane emissions and rumen metabolism.

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 cows

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What will you learn:

• (00:00) Highlight
• (01:44) Introduction
• (02:39) What is exhalomics?
• (03:55) Why study exhalomics?
• (06:19) Research discoveries
• (07:46) Rumen fermentation analysis
• (09:32) Future of exhalomics
• (12:40) Closing thoughts

The Dairy Nutrition Blackbelt Podcast is trusted and supported by the innovative companies:

* Fortiva

* Vetagro

* Kemin

* Adisseo

* Barentz

- DietForge

- Virtus Nutrition

𝗟𝗶𝘀𝘁𝗲𝗻 𝗼𝗻 𝗔𝗽𝗽𝗹𝗲 𝗣𝗼𝗱𝗰𝗮𝘀𝘁𝘀, 𝗦𝗽𝗼𝘁𝗶𝗳𝘆 𝗼𝗿 𝗮𝗻𝘆 𝗺𝗮𝗷𝗼𝗿 𝗽𝗹𝗮𝘁𝗳𝗼𝗿𝗺.

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In this episode of The Dairy Nutrition Blackbelt Podcast, Dr. Eduardo Rico, Assistant Professor at the University of Pennsylvania, explains how omega-3 fatty acids influence inflammation and metabolic balance in dairy cows. Discussion includes the biological role of essential fatty acids, the control of inflammation during critical periods such as calving, and challenges related to dietary supply and rumen protection. Learn how nutrition strategies may support healthier immune responses in modern dairy herds. Listen now on all major platforms!

"Omega-3 fatty acids can contribute to controlling inflammation by counteracting pro-inflammatory compounds generated through omega-6 metabolic pathways."

Meet the guest: Dr. Eduardo Rico is an Assistant Professor of Population Medicine, Sustainable Agriculture, and Food Security at the University of Pennsylvania School of Veterinary Medicine. His research focuses on how nutrition influences metabolism, inflammation, and health in dairy cows, especially during the transition from gestation to lactation. Work includes studies on fatty acids, metabolic dysfunction, and immune responses in modern dairy systems.

Liked this one? Don’t stop now — Here’s what we think you’ll love!

What will you learn:

• (00:00) Highlight
• (01:43) Introduction
• (02:47) Omega-3 role
• (04:52) Inflammation's importance
• (07:33) Omega-6 balance
• (09:18) Stress inflammation
• (10:19) Omega-3 sources
• (15:01) Closing thoughts

The Dairy Nutrition Blackbelt Podcast is trusted and supported by the innovative companies:

- Virtus Nutrition

* Fortiva

* Vetagro

* Kemin

* Adisseo

* Barentz

- DietForge

𝗟𝗶𝘀𝘁𝗲𝗻 𝗼𝗻 𝗔𝗽𝗽𝗹𝗲 𝗣𝗼𝗱𝗰𝗮𝘀𝘁𝘀, 𝗦𝗽𝗼𝘁𝗶𝗳𝘆 𝗼𝗿 𝗮𝗻𝘆 𝗺𝗮𝗷𝗼𝗿 𝗽𝗹𝗮𝘁𝗳𝗼𝗿𝗺.

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