RumiNation

Timestamps & sommaire  1:45 Est-ce que tu peux nous parler du parcours qui t’a menée à étudier la nutrition animale à l’Université de Guelph ? Vicki Brisson J’ai grandi sur une ferme laitière familiale dans l'Est ontarien. Mes 2 parents viennent de fermes laitières eux aussi. Je me suis toujours intéressée à la santé animale. Depuis la 8e année où l'équivalent au Québec (secondaire 2) jusqu'au déb...

Timestamps & Summary  1:41 Could you give us an overview of the biological impact of stress on the dairy cow reproduction? Dr. Matt Lucy I think stress is a big factor in our ability to get cows pregnant. Traditionally, we always thought about the effects of stress on ovarian function. Whether or not the cow had started cycling and come into heat. But more recently, what we work on now is trying t...

Timestamps & Summary  1:24 Dr. King, we would be interested to know what your research interests and projects are. Dr. King I have been working with different provinces, getting producer feedback on how I can assess what stresses them out. What is influencing their mental health and their physical health? How is this related to farm management? And I also want to look at connections to cow health,...

Timestamps & Summary  2:04  What are some of the common stressors that cows may experience daily on a dairy farm?  Dr. Devries  The one that gets the most attention is probably heat stress.  But there are other stressors that cows may face regardless of environmental conditions throughout the year. The biggest one that we know is social stress. And that social stress can come from a variety of pla...

Timestamps & Summary 1:30 Tell us more on your journey in creating success strategies. How did you get there, and what you found along the way? Dr. John Ellsworth I’m happy to share. Success Strategies is actually based upon a business plan that I wrote with a team of fellow students at Duke University when I was working on my MBA, and in which I finished in 1989. Great program. I had a really goo...

Timestamps & Summary 1:42 John, in your experience, what are the top three characteristics of the most profitable dairy farms? Dr. John Ellsworth I would say number one, high milk production. Number two, I say a successful strategy is limiting the ratio of heifers to cows to 80% or 85%. And number three, solid cost control. When we talked about the high milk production, it doesn't matter how much...

Timestamps & Summary 01:44 Has the interest in dry matter intake changed over the years, especially in the light of discussions about feed efficiency?  Dr. Mike Hutjens The goal on dairy farms is to have healthy cows.  Dry matter plays an important role in animal health and immunity.  We have to get cows pregnant in a timely manner, because that determines a peak milk production. We are a little l...

Sections et résumés 00:02:10 À quel moment votre intérêt pour ce sujet a-t-il commencé ? Dre Hélène Lapierre C’est quand même une longue histoire qui a commencé quand j'ai fait mon baccalauréat à l'Université Laval en sciences animales. Ensuite, j'ai trouvé un emploi qui touchait indirectement la recherche, puis ça m'a vraiment donné la piqûre et j'ai poursuivi avec une maîtrise à l'Université Lav...

  Timestamps & Summary  2:00 Dr. Lapierre, could you expand perhaps for the audience on how you arrived at looking at nitrogen and amino acid requirements of dairy cows? Dr. Hélène Lapierre Well, it has been a long road. And I did my bachelor’s degree at Laval University. Then I went for a master but I was still not decided. I went to work in finance for a while and got attracted back into researc...

Sections et résumé 01:43:00 – Pourquoi avoir concentré vos recherches sur les besoins des vaches laitières en vitamines B et comment vos hypothèses ont évolué? Dr Girard a commencé à s'intéresser aux vitamines lorsqu’elle a dû choisir un sujet pour son doctorat. Nouvellement enceinte et devant prendre des suppléments d'acide folique, elle a décidé de faire une revue de littérature sur les besoins...

Timestamps & Summary 01:33:00 – Why did you start researching B vitamins, a nutrient that was supposedly useless for the cow? And how did your original hypothesis change over the years? Dr. Girard started to think about B vitamins when she had to prepare a seminar and a review of literature during her PhD. Pregnant at the time and having to take folic acid supplement herself, she decided to conduc...

Timestamps & Summary 01:10:00 – Your shared with me a paper you wrote in 2016 that talked about the nutrition 2.0. Can you explain a little bit more of what you mean by it? We're referring to a new generation of understanding nutrients and how we should feed them. With the discovery in the Human Genome project that there are hundreds of sensors in the genome that are apparently designed to sense n...

Timestamps & Summary 01:54:00 – Could you explain the path you took to become who you are today? Dr. Hutjens grew up on a 70-cow grade Holstein farm in the 1950s. He went to a Community College for a year, and then down to Madison to get his degree, where he got a chance to work in a mastitis lab and in the dairy science department. When he met Dr. Jim Crowley and Dr. Dave Dixon, he fell in love w...

Timestamps & Summary 01:20:00 – In a previous episode, you expanded on your approach on farm synchronization to improve efficiency. Could you expand specifically on how the feed centre and mixing feed impact the overall farm synchronization? There is currently a great lost of efficiency when it comes to feed centres. To prevent that, David Greene developed what he calls a "feed-zone model concept"...

What causes acidosis in feedlot cattle? Is the risk of acidosis greater in beef cattle then in dairy cattle? How could we prevent it? Can acidosis also cause other health issues? Get answers and more with expert Dr. Penner.

What are the stressors affecting feed intake in beef cattle? How can we prevent and manage them? What should we measure and monitor? Learn more about dry matter intake in feedlot cattle with expert Dr. Garza.

How is activity monitoring helping veterinarians, nutritionists and dairy producers manage the herd? What is the impact on disease prevention, feed intake, labour efficiency, and barn designs? Learn more about cow-level technology and get answers with application & marketing manager Tera Baker.

How are the beef market and cattle prices right now? What will it be in 2022? What will be the lingering impacts of COVID-19 and the widespread drought we experienced in North America this summer? Get answers with manager and senior analyst Brian Perillat.

The ups and downs of component yield across season, why does this happen, what has been investigated, how can it be mitigated.

Ruminant nutritionists are becoming increasingly aware of the essential role of a healthy GI tract. Leaky gut and inflammation have been brought into the forefront of our interest to boost health and performance of our herds. Dr Baumgard is a leading expert in the field.

Cattle Lameness is preventable, yet the average rates of lameness remain relatively unchanged. This episode will discuss the Major Challenges facing producers in minimizing cattle lameness with one of the globally leading experts, Karl Burgi.

Digital Dermatitis, Strawberry Footrot, Fraise (as is said in Quebec) Hairy Heal Wart, Mortadello’s Disease, it remains a preventable challenge on many dairies. Today’s episode will discuss practical steps to minimize the incidence and severity of DD from the point of view of a leading expert, Karl Burgi.

We perhaps thought that with our high forage diets SARA was a thing of the past. The ability of individual cows to cope with variable rumen pH differs, yet the early lactation cow is often a risk. Dr Greg Penner will dig deeper into this subject.