Real Science Exchange-Dairy

Guests: Dr. Chad Paulk, Kansas State University and Dr. JT Pope, Nutritionist at House of Raeford Farms
Co-host: Dr. Zack Lowman, Balchem

Today’s podcast is part of a continuing conversation started during the Real Science Lecture Series, where we look deeper into the impact of thermal processing on protein quality and the forms of thermal processing in the industry. 

Dr. Chad Paulk mentioned there are two major categories of thermal processing, ingredients and complete diets. Complete diets in the U.S. use thermal processing most often in the pelleting process via steam conditioning and frictional heat and is a combination of heat and moisture. On the ingredient side, by-products or co-products are processed by heat most often to pull moisture or pathogen control. (4:11)

Drs. Chad Paulk and JT Pope agreed there are a wide variety of effects thermal processing has on protein. Thermal processing can “unfold” proteins and provide access to enzymes, which aids in digestibility. But if you expose protein too much, they start to bind to sugars and actually prevent them from being digested. (7:02)

Dr. JT Pope mentioned that in the Southeast especially, pelleting is a winning situation due to economic reasons. Dr. Chad Paulk added to that idea by saying the higher the ingredient cost, the greater the value of pelleting. For swine especially it is influenced by location and access to feed. In the poultry industry a large percentage pellet feed. (20:57)

Dr. JT Pope discussed that thermal processing can negatively impact enzymes. It’s important to understand the enzymes you’re feeding and how they will survive the pelleting process. It is possible through formulations and other methods to ensure the enzyme survives the pelleting process. (26:30) 

Dr. Chad Paulk and Dr. JT Pope agree that the strategy for pellets is dependent on the outcome you are looking for. If the intention is for a high-quality pellet more heat may be used, but you may lose some nutritional density. If the focus is on available enzymes, the pellet may not be as high quality. More research is needed to create a high-quality pellet with the same enzyme availability. (30:28)

Dr. JT Pope emphasized this is a complex process and there is a lot left to learn. For now, pelleting and thermal processing being in the middle is ideal because over processing can be bad, and so can under processing. Dr. Chad Paulk added it’s important to know your ingredients and your supplier and understand how different factors influence the pelleting process. (49:18)

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Guests: Dr. Jordan Gebhardt, Kansas State University and Dr. Chad Paulk, Kansas State University Co-host: Dr. Zack Lowman, Balchem

Tonight we are talking feed supply biosecurity and the many challenges we face as we try to keep various animal diseases at bay. In late July, the USDA announced that African Swine Fever was detected in the Dominican Republic, inching dangerously close to the U.S. swine herd.

Dr. Jordan Gebhardt explained that African Swine Fever (ASF) is caused by a virus. He discussed the history of the virus and the impact that a disease like this can have on the animals, the producer and the industry. He also expressed his concern of the virus spreading to South America or Central America from its current location in the Dominican Republic. (7:26)

Dr. Chad Paulk discussed the potential contamination of the feed supply if or when the virus reaches the United States and how the feed supply chain can be changed to help reduce the spread of the virus. (16:36)

Dr. Jordan Gebhardt explains that African Swine Fever can only infect swine - domesticated pigs or wild boar. If a human were to consume a contaminated product, there would be no threat to them whatsoever. (24:03)

Dr. Chad Paulk discusses prevention of the virus and steps to take in order to reduce the risk. He gave the example of a feed mill processing a potential contaminated product and producing particles in the air that could contaminate the airspace of a road that has a lot of swine in transit. The steps will have to be used by everyone involved in production to help eliminate the spread of the virus so it needs to be built into the industry culture if that time comes. (40:00)

Dr. Jordan Gebhardt discusses the importance of making biosecurity practices convenient for the producer and their employees. If it is convenient for employees, they will be more likely to stick with the biosecurity measures to go about their daily routine. (51:43)

Dr. Chad Paulk and Dr. Jordan Gebhardt both discuss the importance of working together as an industry to prevent this disease from making it to the United States as well as working together with biosecurity as an industry if/when it does get here. (1:01:05)

To find Dr. Jordan Gebhardt’s presentation from the K-State Swine Day, visit Latest findings from the K-State-Vietnam partnership – Jordan Gebhardt

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This podcast is sponsored by Balchem Animal Nutrition and Health. 

Guests: Dr. Bill Weiss, The Ohio State University and Dr. Rich Erdman, University of Maryland

Tonight we finish the conversation on the new NRC with two legends in the industry. We’ll first focus on macro minerals, trace minerals and vitamins, but then we’ll also put a bow on the NRC series and wrap it up for our listeners tonight. 

Dr. Bill Weiss says the new NRC defines “requirements” which was never done in past NRCs. They give a specific number for a specific population which is a large improvement for the reader. (9:55) 

Dr. Rich Erdman discusses the animal’s needs or requirements in order to maintain herself. He discusses the availability of vitamins, trace minerals and macros as well. (19:50) 

Dr. Bill Weiss discusses trace minerals and the factorial system used in the new NRC for these minerals such as manganese, iron, selenium and iodine. He discusses the copper and zinc data found in the 2021 version are based on the maintenance requirements of the cow. (33:33)

Dr. Rich Erdman stresses there is still a need for more specific data on the availability of supplements and feed. (50:10)

Dr. Bill Weiss discusses challenges for the next editions of the NRC (now NASEM) such as finding young scientists specializing in minerals, funding and the USDA recognizing that minerals are important and should be focused on. (1:05:53)

This concludes our series on the 2021 8th Revised Edition of the Nutrient Requirements of Animals. If you’d like to pre-order a copy and receive a 25% discount, visit Balchem.com/realscience and click on the NRC series for a link and the discount code.  

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This podcast is sponsored by Balchem Animal Nutrition and Health. 

Guests: 
Dr. Mary Beth Hall with the USDA
Dr. Paul Kononoff from the University of Nebraska-Lincoln
Co-host: Dr. Clay Zimmerman, Balchem

We continue our discussions on the new 2021 dairy NRC, now known as NASEM. This is a follow-up to our Real Science Lecture series of five webinars that officially unveiled the content back in September. We’ll be breaking down the feed intake and carbohydrates sections during this episode.

Dr. Mary Beth Hall discusses the changes in the dry matter intake equations in the new NASEM. She explains that there are two different dry matter intake equations, and those equations have new factors that give producers a much closer look at the diet and what factors will influence intake. (7:29)

Dr. Paul Kononoff discusses the new feed factor equations and using different forage decisions. He explains when using it for forages, the new equation will be very useful to producers especially with all the factors involved. He also discusses byproducts and his hope for them to be included for future equations once more research is done. (26:19)

Dr. Mary Beth Hall discusses the carbohydrate chapter. She explained the equations didn’t drastically change but they discussed the different types of carbohydrates in more detail and had a better understanding of starch and fiber. (30:40)

Dr. Paul Kononoff discusses the gaps that are possibly in the new NASEM for the next committee to work on in the future. He stressed the importance of reporting chemical composition of feeds and forages. This will not only give a better understanding to those using the current equations, but it will also help the next committee when deciding on changes to those equations in the future. (45:55)

As a reminder, we finish breaking down the new 2021 8th Revised Edition of the Nutrient Requirements of Animals in one more podcast releasing next week. Be sure to subscribe so you don’t miss any of the new episodes. If you’d like to pre-order a copy and receive a 25% discount, visit Balchem.com/realscience and click on the NRC series for a link and the discount code. 

If you like what you heard, please remember to hit the 5-star rating on your way out.  Don’t forget to request your Real Science Exchange t-shirt. You just need to like or subscribe to the Real Science Exchange and send us a screenshot along with your address and size to [email protected].

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This podcast is sponsored by Balchem Animal Nutrition and Health.

Guests: 
Dr. Jim Drackley, University of Illinois 
Dr. Bill Weiss, The Ohio State University
Dr. Mike VandeHaar, Michigan State University

Tonight, we continue our discussions with the authors of each chapter of the new NASEM, formerly the dairy NRC. We’re focusing on dry cows, calves and heifers for our conversation and it should be a lively one. Here is a link to the webinar on the new report: https://bit.ly/3B5z2MZ. Also, we've got a new co-host tonight with Dr. Jeff Elliott joining us.

Dr. Bill Weiss discusses changes in the chapter regarding dry cows and transition cows. The biggest update was the changes in intake prediction, which changes every day substantially as the cow gets close to calving, making intake prediction difficult to model. There is also up-to-date discussion on all the metabolic problems within the text that doesn’t all show up in the software but is great for users to have as a reference. (7:08)

Dr. Jim Drackley discusses steam-up rations and high energy density diets. He explains there are large steps from the dry cow to the close-up cow but not a large step to the fresh cow. That is part of the problem and why they took a more moderate steam-up approach. The other problem is that cows are becoming catabolic the last few days before calving. So adjustments are made to focus on metabolism and divert nutrients to the mammary gland. (12.05)

Dr. Mike VanderHaar discussed a big change in the composition of gain. They used data from Holstein cattle instead of growing beef cattle. By doing this the intake equations are better than the last model. They also include feed factors and are size scaled. (41:44)

Dr. Jim Drackley discusses updates to the calf chapter. The requirements on the conversion of nutrients into gain are much improved because of better data based on Holstein and Jersey calf studies. (58:14)

As a reminder, we will continue breaking down the new 2021 8th Revised Edition of the Nutrient Requirements of Animals in podcasts releasing over the coming weeks. Be sure to subscribe so you don’t miss any of the new episodes. If you’d like to pre-order a copy and receive a 25% discount, visit Balchem.com/realscience and click on the NRC series for a link and the discount code. 

If you like what you heard, please remember to hit the 5-star rating on your way out. Don’t forget to request your Real Science Exchange t-shirt. You just need to like or subscribe to the Real Science Exchange and send us a screenshot along with your address and size to [email protected].

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This podcast is sponsored by Balchem Animal Nutrition and Health.

Guests: Dr. Mark Hanigan, Virginia Tech
Dr. Jeff Firkins, The Ohio State
Dr. Hélène Lapierre, Agriculture and Agri-Food Canada

Our Dairy NRC series of Real Science webinars was very well received and tonight we are talking about the chapter on protein and amino acids.

Dr. Mark Hanigan discussed the sections his team worked on in the new NRC. First thing was updating the feed library. After the feed library was updated they identified other updates like the microbial equations and RUP equations, adjustability data for the RUP and for microbes as well as composition of the microbes. (6:49)

Dr. Jeff Firkens discussed the difference with the amino acid profile by accounting for protozoa flow which is important for lysine, because protozoa have a lot more lysine than bacteria. So they are attributing microbial protein sources as better sources of lysine. (22:02)

Dr. Hélène Lapierre discussed their updates to metabolic fecal output and urinary endogenous output since the previous data dated back to 1977. The updated data showed a large change.  Endogenous urine output was twice as much as it was previously, and fecal output was much lower than it was previously. (36:36)

Dr. Mark Hanigan discussed the new milk protein yield equation and used the analogy of an assembly line. Each nutrient is a separate contributor to the assembly line and without a certain nutrient that assembly line will slow down. Once a little more of that nutrient is provided the assembly line speeds back up. (47:33)

Dr. Hélène Lapierre discussed efficiency and working with cows of the past, and their published data, to provide the specifications for cows of the future that are producing more. So the scaling factor should be based on current herd averages. (58:33)

As a reminder, we will continue breaking down the new 2021 8th Revised Edition of the Nutrient Requirements of Animals in podcasts releasing over the coming weeks. Be sure to subscribe so you don’t miss any of the new episodes. If you’d like to pre-order a copy and receive a 25% discount, visit Balchem.com/realscience and click on the NRC series for a link and the discount code. 

If you like what you heard, please remember to hit the 5-star rating on your way out.  Don’t forget to request your Real Science Exchange t-shirt. You just need to like or subscribe to the Real Science Exchange and send us a screenshot along with your address and size to [email protected].

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This podcast is sponsored by Balchem Animal Nutrition and Health.

Guests: 

Dr. Lou Armentano, University of Wisconsin-Madison and Dr. Mike Vandehaar, Michigan State University. Co-host: Dr. Glen Aines, Balchem

We are just coming off a very successful Real Science Lecture Series set of five webinars where we unveiled the new 2021 dairy NRC, a chapter at a time, and we can’t wait to have these sit-down conversations with each of our presenters and their guest.

Dr. Lou Armentano summarizes the biggest changes from the 2001 edition to the 2021 edition within the energy chapter. He explained that their resource data shows that cows have changed, therefore the maintenance requirements for cows have changed. Since cows have biologically changed with genetic selection, they use more energy to maintain themselves. So that part of the chapter needed to be updated to reflect that change. (14:19)

Dr. Lou Armentano discusses the reporting of fatty acid content in the feed. He expands upon fatty acid digestion, and how those fatty acids affect milk fat. (29:52)

Dr. Mike Vandehaar discusses frame growth, which is the true structural growth of the animal, including muscle, bone, fat, gut tissues and gut fill as well as reserve depletion, which happens in all cows even when they hit maturity. The 2001 model wouldn’t change the equation solution when you entered structural growth as a factor. So they wanted to make sure that oversight was fixed in the new model. (37:33)

Dr. Mike Vandehaar discusses feeding high starch diets versus high fiber by-products to cows through their lactation cycles. (45:47)

Dr. Mike Vanehaar stresses that you can’t just trust the model you have to watch the cows and when you make a diet change try to figure out what the cows are telling you by observing and measuring things like milk production, milk compensation, intake, and body condition score. (1:04:04)

Dr. Lou Armentano says that they have been playing with a functioning model for only about a month and a half so he encourages those who are going to use the new model to speak up if something seems to be a mistake so changes can be made to correct any issues. (1:04:40)

As a reminder, we will continue breaking down the new 2021 8th Revised Edition of the Nutrient Requirements of Animals in podcasts releasing over the coming weeks. Be sure to subscribe so you don’t miss any of the new episodes. If you’d like to pre-order a copy and receive a 25% discount, visit Balchem.com/realscience and click on the NRC series for a link and the discount code. 

If you like what you heard, please remember to hit the 5-star rating on your way out.  Don’t forget to request your Real Science Exchange t-shirt. You just need to like or subscribe to the Real Science Exchange and send us a screenshot along with your address and size to [email protected].

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This podcast is sponsored by Balchem Animal Nutrition and Health.

Guests: 
Jim Ostrom, MilkSource, with locations in Wisconsin, Michigan and Missouri
Pat Maddox, RuAnn Genetics and Maddox Dairy in California
Jonathan Lamb, Oakfield Corners Dairy and Lamb Farms in New York & Ohio
Co-host: Brian Garrison, Balchem Animal Nutrition & Health

We are so excited to come to you from the World Dairy Expo today. We are happy to be back at World Dairy Expo in Madison in 2021. We are also doing things a little different today and are welcoming three icons in the dairy industry to sit at the pub table with us – and not virtually. 

To kick things off Pat Maddox discussed his genetic and commercial business and how they go hand-in-hand for the number one goal of increasing the genetics in the herd for better production, better productive life, and better health. The second goal is meeting the needs of the market and demand. This entails breeding for high indexes, breeding for show and breeding for AI. (6:07)

The producers weighed in on the discussion of the evolution of breeding for the “big cows” trait. Now in the showring and in production, it is important that the cattle be good first and not just big. The production must be considered as well. (6:54)

Jim Ostrom discussed dairy strength improvements versus big and big bones. Dairy strength is hard to physically see on an animal but when they have it they have better balance. He also discussed the improvements in mammary systems in the industry. (8:27)

Jonathan Lamb discussed improvements into the industry due to genomics. He explained that the commercial herd and the showring cattle don’t always line up on the productivity scale. Sometimes the old show cattle struggle to get pregnant and have different health traits. It’s important for showring animals to translate back to that productive commercial herd. Genomics could help breed some desirable traits into the commercial herd as well. (11:56)

Jim Ostrom discussed the importance of communication with consumers. Whether you have 50 or 50,000 social media followers all producers need to tell their story. Producers need to communicate animal care, animal health, soil erosion, sustainability, etc. Occasionally we have to be aggressive on the national stage when things are being said about our industry that are not true. (10:31)

Pat Maddox discusses his use of outsourcing in his operation to improve efficiencies. His operation outsources Human Resources and Nutrition. They use internal veterinarians because of the amount of need for veterinarians in their operations. (28:44)

Jonathan Lamb talks about establishing a culture about animal care among employees so it is a trickle-down effect. If the employees know the importance of what should and shouldn’t be done, then they will feel comfortable reporting bad behavior to those in charge. And the managers have to follow through and terminate bad actors on their farms, so it is not an ongoing issue. (30:55)

Pat Maddox discusses the role innovation plays in the industry like embryo transfer and genetics as well as biosolids. The co-op their operation belongs to is focusing on butter powder and other powder mixes that can be exported to feed the world. (41:47)

As a reminder, we will continue breaking down the new 2021 8th Revised Edition of the Nutrient Requirements of Animals in podcasts releasing over the coming weeks. Be sure to subscribe so you don’t miss any of the new episodes. If you’d like to pre-order a copy and receive a 25% discount, visit Balchem.com/realscience and click on the NRC series for a link and the discount code. 

If you like what you heard, please remember to hit the 5-star rating on your way out.  Don’t forget to request your Real Science Exchange t-shirt. You just need to like or subscribe to the Real Science Exchange and send us a screenshot along with your address and size to [email protected].

Please subscribe and share with your industry friends to bring more people to join us around the Real Science Exchange virtual pub table.

This podcast is sponsored by Balchem Animal Nutrition and Health.

Guests: Dr. Paul Kononoff, University of Nebraska-Lincoln and Dr. Logan Morris, Perdue AgriBusiness. Co-host is Dr. Clay Zimmerman.

As we move into the fall and new silage is going into the bunkers, we wanted to take a closer look at energy metabolism and the mechanics of feed efficiency. Let’s talk about heat production and metabolism. Dr. Paul Kononoff joined us for a webinar on August 4th, 2021, to review the basics of energetics and new science that will help feed cows better. If you want to watch the webinar, go to Balchem.com/realscience.

To kick things off, Dr. Paul Kononoff answers Scott’s question about how our understanding of energetics changed over the last 60 years. He explained the animals have changed dramatically as well as how we view energy when it is supplied to the cows. Feed characterization has changed since the sixties as well as NRC requirements of dairy cattle and how we measure it. (7:00) 

Dr. Logan Morris discussed their study on factors that influence heat production. They found the two biggest factors were dry matter and body weight. Bodyweight represents the maintenance energy expenditure, which keeps the cow alive and functioning. Dry matter intake drives the rest of heat production. Higher dietary protein leads to more heat production and generates more milk protein which leads to more heat production. (15:04)

Dr. Logan Morris discusses the change in the industry over the past four or five years and how producers now face production caps and quota systems. He discussed his research on starch and fat and how higher starch increased milk yield. To produce a concentrated product for lowest milk volume, with maximum components, the study suggested feeding a lower dietary starch to prevent an increase in milk yield. (28:56)

Dr. Paul Kononoff discussed the effect energy mobilization of tissue has on feed efficiency. When looking at dairy cattle there are different physiological stages, different ages and different lactation stages. Feed efficiency can be extremely valuable and a useful proxy but can be misleading so you have to understand the conditions around it. (34:46)

Dr. Logan Morris discusses his research that shows starch and fat act differently when influencing milk protein production. (49:43)

Dr. Paul Kononoff is also participating in the new NRC release. You can view the five-webinar series from Balchem on the NRC at Balchem.com/RealScience.

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This podcast is sponsored by Balchem Animal Nutrition and Health.

Guests: Dr. Bill Weiss, The Ohio State University; Dr. Paul Kononoff, University of Nebraska, and Journal of Dairy Science Editor-In-Chief. Co-host: Dr. Clay Zimmerman, Balchem

We’re excited to introduce a new segment into our podcast rotation; The Journal Club. Styled after the traditional journal clubs convened at universities across the US, we’ll take a closer look at some of the newest research being published. Once a month we will welcome Dr. Bill Weiss, Emeritus Professor from The Ohio State University, to the pub table where we will discuss selected papers that were recently published. To gain additional insight and liven up the discussion, we’ll also invite the authors to join us whenever possible.

Dr. Bill Weiss introduced two papers that the guests would discuss throughout the episode. “Effects of rumen-protected lysine and histidine on milk production and energy and nitrogen utilization in diets containing hydrolyzed feather meal fed to lactating Jersey cows” published in June 2020 by Dr. Morris and Dr. Kononoff at the University of Nebraska. The second “Effect of sealing strategy on the feeding value of corn silage for growing dairy heifers” published in March 2021 from a lab at State University of Maringá in Brazil. (1:37)

Dr. Bill Weiss discussed the first paper about feather meal. He explained that feather meal is a bargain feed, however, you get more nutrients for a cheaper product. The research was also done on Jersey cattle instead of Holsteins which is unique as there is not as much research done on Jersey cattle. (7:06)

Dr. Paul Kononoff discussed feed bypass sources and milk performance while feeding feather meal within his study. He also discussed the variance in feed composition, for example, dry matter content, crude protein, and crude fat differences of feather meal. (11:17)

Dr. Paul Kononoff discussed a theory that one of his grad students (who was also an author on the paper) brought to his attention about methane production relating to rumen-protected lysine. (29:21)

Dr. Bill Weiss discussed the second study about feeding corn silage to dairy heifers. He explained the silage sealing and feeding processes used within the study. (41:11)

Dr. Paul Kononoff discussed palatability and animal behavior as it relates to the silage study. A producer has to consider the economics of affecting feed intake with picky animals. Is the saved cost worth a loss in intake? (47:06)

Chart Referenced as Table 7 on page 11 of the paper. 

If you want one of our new Real Science Exchange t-shirts, make sure to screenshot your rating, review, or subscription, and email a picture to [email protected]. Include your size and mailing address, and we’ll get a shirt in the mail to you.

Please subscribe and share with your industry friends to bring more people to join us around the Real Science Exchange virtual pub table.

This podcast is sponsored by Balchem Animal Nutrition and Health.