RumiNation

00:22:15

Practical Research for Better Dairy Performance

RumiNation ·

2026/09/22

Timestamps & SummaryChris Gwyn (02:22)So [Sarah], let's start with looking at the information that you presented on B vitamin supplementation in dairy calves. In the study, you presented data on the post-weaning period. My question for you is: why focus on that time?Sarah DeanWe focused on this time because the post-weaning period is one of the most stressful phases of a calf's life. The calf is experiencing nutritional changes, social regrouping, and environmental stressors all at once

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00:27:23

Why Mitochondria Matter in the Modern Dairy Cow

RumiNation ·

2026/09/01

Timestamps & SummaryChris Gwyn (01:54) Can you share with the audience a bit of the evolutionary biology of the mitochondrion, how this is crucial for today's dairy cow, and why this is such an interest to you? Dr. Nial O'Boyle I share your fascination with it. So, on the evolutionary side, the main theory is [that] ancient cells like archaea and a type of bacteria fused together, and the bacteria was the mitochondrion, or the pre-runner for the mitochondrion, and they became what we now know

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00:35:35

The Evolving Role of the Modern Dairy Nutrition...

RumiNation ·

2026/07/21

Timestamps & Summary Chris Gwyn (02:00) What drew you into dairy consulting, and how has that role evolved over the years as both the industry and your customers have changed? Jodi Erickson Back in the early 2000s, when I was hitting the job market, nutrition wasn't a career that I was seeking out, but there was an opportunity to work with an established team, an established feed supplier, and I was qualified for the job. It was shortly after that that I discovered my true passion for this

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00:23:31

Smart Systems Rethinking Lameness Management

RumiNation ·

2026/06/30

Timestamps & Summary Chris Gwyn (01:35) How would you describe the current state of lameness on dairy farms, and how has it evolved over your career? Dr. Gerard Cramer I started working on lameness when I started my graduate work in 2003. Things have progressed, but I think it's still probably one of the major animal welfare issues in the industry. So, I'd say we probably haven't progressed as much as I'd like. […] We're creating too many chronic cows. That's kind of hampering, holding us back

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00:26:24

Managing Calf Stress from Day One to Weaning

RumiNation ·

2026/06/09

Dr. Gail Carpenter explains how early-life stress, nutrition, and management shape calf health, resilience, productivity, and profitability.Timestamps & Summary Chris Gwyn (04:04) Calfhood stress: what does that mean, and why is the timing of these stressors so important, in particular for the long-term health and productivity of the animal? Dr. Gail Carpenter It is a very stressful time in that animal's life. They don't have an immune system. They don't have the tools to really be able to thrive

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00:27:19

How Wildfire Smoke Impacts Calf Growth

RumiNation ·

2026/05/19

Timestamps & Summary Chris Gwyn (02:19) Tell us about your Rancher program and your background journey. Dr. Juliana Ranches Rancher is a webinar series that brings most of the day’s information to cattle producers and livestock producers around the globe. […] I wanted it to be something unique that would highlight the work of women in this industry. So female scientists, ranchers, farmers, in the industry, faculty that work in the beef cattle industry or in the cattle industry in general, to

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00:28:56

Turning Feed Analysis into Real Gains in Milk Production

RumiNation ·

2026/04/28

Timestamps & Summary Chris Gwyn (02:58) How should nutritionists use lab data to confirm that what’s formulated on paper matches what cows are actually eating and performing? Katie Raver A lot of times when we get a feed analysis, we use those feed analysis to formulate our ration. So we'll pull those into a model and build a ration around those. […] But I think there's a lot of value beyond that. […] Even testing things like commodities can help us confirm what we put into that model is what's

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00:15:08

Unlocking the Role of B Vitamins in Receiving Cattle

RumiNation ·

2025/10/21

Timestamps & Summary Chris Gwyn (02:04)Could you share with the audience why B vitamins would be important to receiving cattle in particular?Dr. Stephanie HansenAbsolutely. If we go back and look at the NRC guidelines, we've really ignored two classes of vitamins, vitamin C and vitamin B. Cattle are able to make vitamin C from glucose in their liver. […] Not a lot of work is focused on that because the assumption has been that the animal can make it, it's fine. Similarly, they get most of their B

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00:20:53

Strategies for Healthier and More Resilient Receiving...

RumiNation ·

2025/10/07

Timestamps & Summary Chris Gwyn (01:44)Before we jump right in, I'd enjoy hearing about the journey that brings you to research and teaching.Dr. Stephanie Hansen I did not grow up on a beef operation, but my grandparents had cattle, and so I spent a lot of summers there. So, I had the beef bug, so to speak, by the time I went to undergrad at Iowa State, but I was never pre-vet. I was really focused on what we could do, and eventually I realized that what that was was nutrition to actually keep

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00:30:15

Smarter Farming with Data and Technology

RumiNation ·

2025/09/23

Timestamps & Summary Chris Gwyn (00:02:56.23)Dr. Van de Pol, would you share with the listening audience your journey in AG and in data, and how this journey has brought you to establishing CATTLEytics?Dr. Shari van de PolSimilar to a lot of listeners of your show, what really resonates with me is everything tied to agriculture, being outdoors, and the biological systems. I just found it was so interesting and fascinating.[…]I actually did a minor in fine art at the time, and I ended up working for

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00:14:44

New Tools for Understanding Stress in Transition Cows

RumiNation ·

2025/09/09

Timestamps & Summary Chris Gwyn (02:11)At JEFO, we've been looking at stressors across species, in particular in dairy cows. I was wondering if you could give our audience an overview of this study and why it's important.Dr. Laura HernandezSure. This was an ongoing collaboration with my colleague Dr. Milo Wiltbank, who's a reproductive physiologist here at the University of Wisconsin. We had a shared scientist who's now a professor at the vet school at the University of Florida, Pedro Monteiro. […]

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00:24:32

Understanding Calcium Needs in Dairy Cows

RumiNation ·

2025/08/29

Timestamps & Summary Chris Gwyn (01:50)Dr. Hernández, could you share with the audience your journey that brought you to be a trusted researcher and advisor at the University of Wisconsin?Dr. Laura HernandezSure. Working in Dr. Collier's lab, I had the fortunate pleasure of working in mammary biology. I specifically worked on how the mammary gland interacts with the endocrine and metabolic systems of an animal. And naturally, given his research was in dairy cows, that was my first exposure. I

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00:27:44

How Forage Quality and Cow Comfort Drive Dairy Success

RumiNation ·

2025/07/14

Timestamps & Summary Chris Gwyn (02:26)Going past the economic value, what can component volume and percentage tell us about the farm level management and cow health?Dr. Heather DannI think one of the important things that we need to look at is the pounds or kilos of fat and protein that our farm is producing. [S]ome of the common metrics that we're currently using here […] is the kilos or pounds of fat and protein shipped. Several years ago, we had these targets of about 2.7 kilos, or about six

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00:14:16

Breaking Barriers to Mental Health in Farming...

RumiNation ·

2025/06/25

Timestamps & Summary Chris Gwyn (01:51)Dr. Slesser, you recently published a study titled Wisconsin Farmers Share Their Stressors and Mental Health Care Needs Through Focus Groups. I was wondering if you could share the reasoning behind conducting the studies.Dr. Heather SchlesserI think we all know that Covid was hard on everybody, whether you were on a farm or not on a farm. And one thing that we saw here in Wisconsin is that with COVID, we had an increased spike in the number of suicides that

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00:24:09

Impact de la supplémentation en vitamines B sur la...

RumiNation ·

2025/06/03

Timestamps & Summary Chris Gwyn (01:49)Docteure Duplessis, vous et vos collègues étudiez depuis de nombreuses années le rôle des vitamines B, en particulier celui de la vitamine B12 et de l’acide folique sur l'impact métabolique, productif et reproductif des vaches laitières. Avant de présenter vos dernières recherches, pourriez-vous résumer les découvertes à ce jour ?Dre Mélissa DuplessisJ'ai commencé ma carrière en recherche il y a quinze ans. J'étais une étudiante à la maîtrise à cette époque

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00:24:37

Impact of B Vitamin Supplementation on Dairy Nutrition

RumiNation ·

2025/06/03

Timestamps & Summary Chris Gwyn (01:50)I was wondering if you could summarize for the audience what has been discovered to date about B vitamin nutrition in dairy cows, in particular B12 and folic acid.Dr. Melissa DuplessisI started my career in research 15 years ago. I was a master's student at that time in Christiane Girard’s lab at Agriculture and Agri Food Canada. And she was the first to challenge the well-established dogma that dairy cows do not need an exogenous supply of B vitamins because

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00:32:23

Managing Consistency to Improve Fresh Cow Health

RumiNation ·

2025/05/20

Timestamps & Summary Chris Gwyn (02:35)Dr. Devries, your lab has been extensively and intensively looking at cow management and nutrition factors and their associations and correlations with early lactation outcomes. Why don’t you give us an overview of this most recent study design.Dr. Trevor DeVriesYes, this is a large study that we recently undertook with a large cohort of dairy farms in southwestern Ontario. […] Not specifically looking at milking system effects, but looking at the management of

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00:15:53

Maximizing Milk Yield and Cow Health Through Stocking...

RumiNation ·

2025/04/29

Timestamps & Summary Chris Gwyn (03:02)What is important for producers and nutritionists to consider when optimizing stock and density in their dairies?Dr. Rick Grant (03:10)Well, that's the big question, isn't it?And there are at least two or three main factors that we can get into today. One would be just, I had an aha moment a few years ago when a grad student and I realized that we need to think about overcrowding as a subclinical stressor. That allows us to think about how the same level of

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00:20:38

Jean Fontaine, président fondateur de Jefo, sur...

RumiNation ·

2024/02/06

Chapitrage et résumé Vicky Brisson (01:54)Tout récemment, Jefo a fêté son 40ᵉ anniversaire. Pouvez-vous nous raconter les débuts de Jefo ?Jean FontaineÇa prend un petit peu de temps à expliquer tout ça, mais les débuts étaient très modestes. J'ai commencé à 25 ans avec le choix de faire faillite ou de commencer à faire de l'argent. Dans le domaine des luminaires, c'était le bicarbonate de soude qui était granulaire contre les Américains qui avaient le monopole du marché. Donc on a commencé

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00:23:29

Jean Fontaine, Founder of JEFO, on Livestock Feed and...

RumiNation ·

2024/02/06

Timestamps & Summary Chris Gwyn (02:05)JEFO recently celebrated its 40th anniversary. Can you share with us and with the audience the story of how JEFO started?Jean FontaineJEFO started very modestly. I was out of school, 25 years old, and I had a choice to declare bankruptcy or try something. And I had a vision to offer our industry different source of material, to be more competitive. And it started like that. The snowball effect started gradually with one or two products, then the other ones were

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