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Real Science ExchangeAuthor: Balchem Animal Nutrition & Health
Balchem Real Science Exchange isnt just any old boring podcast. Youll get to know top researchers like youve 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. Language: en Genres: Life Sciences, Natural Sciences, Science Contact email: Get it Feed URL: Get it iTunes ID: Get it |
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Effective Use of Fiber in Dairy Rations with Kurt Cotanch, NDS and Guest
Episode 204
Tuesday, 9 June, 2026
The episode opens with introductions to the panel, including Kurt Cotanch, Gianni Raffrenato, Steve Martin, and Jacob Copeland, establishing a diverse mix of academic, applied, and field-based expertise in dairy nutrition and forage systems. (00:00 – 07:39) The conversation begins with a deep dive into forage quality, emphasizing the importance of harvest timing, speed, and efficiency. The panel discusses how mold and yeast contamination can compromise digestibility—both in the lab and in the rumen—and how improving harvest practices can significantly impact overall feed value. (07:39 – 12:35) From there, the discussion broadens to regional feeding strategies, comparing dairy systems across environments such as the Northeast and Western U.S. The panel highlights how forage availability, climate, and production goals influence diet formulation, and how nutritionists adapt fiber strategies to maintain performance under very different conditions. (12:36 – 17:31) Attention then turns to practical, on-farm evaluation tools, particularly the use of shaker boxes. While sometimes considered outdated, the panel reinforces their value in assessing particle size distribution, identifying ration inconsistencies, and helping bridge the gap between theoretical models and real-world feeding outcomes. (17:32 – 23:04) A significant portion of the episode focuses on troubleshooting fiber digestibility in nutrition models, particularly within NDS and CNCPS systems. The panel explores how to interpret digestibility values, adjust degradation rates, and calibrate models based on observed animal performance—while also emphasizing the importance of accurate inputs, including feed descriptions and animal data. (25:27 – 32:10) The conversation also highlights the complexity of fiber as a nutrient, discussing concepts such as undigested NDF pools, passage rate, and the interaction between physical and chemical fiber characteristics. The panel reinforces that while models provide structure, effective nutrition still requires experience, observation, and critical thinking. Finally, the episode looks ahead to the future of dairy nutrition, examining the growing role of artificial intelligence in ration formulation. While AI and large language models show promise, the panel raises important concerns about their ability to capture biological nuance, emphasizing that human expertise, on-farm observation, and scientific judgment will remain essential. (39:25 – 44:38) The episode concludes with key takeaways from each speaker, reinforcing the importance of responsible model use, accurate data inputs, and maintaining a strong connection between computer-generated rations and real-world cow performance. 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. As a result, we’ll mail you a shirt.
