Dairy Science Digest

2.11 | Measuring Fat During the Transition Period

As the dairy cow transitions from dry to lactating, she experiences numerous changes. This month we learn more about the biological details of fat metabolism. Dr. Contreras, from Michigan State University, guides us through a discussion around the project specifically focusing in on what occurs to the fat, at a cellular level, of a cow challenged by disease – specifically ketosis.
Listen in to better understand the 3 major mechanisms to control fat mobilization in your fresh cow pen. This “benchtop” laboratory work has paved the way to brainstorm supportive solutions.
The article highlighted from the @JournalOfDairyScience is titled: Lipopolysaccharide induces lipolysis and insulin resistance in adipose tissue from dairy cows. Found at: https://www.journalofdairyscience.org/article/S0022-0302(21)00970-X/fulltext
If you would like to sponsor a future podcast, please reach out at: reagan@modairy.org.
 
#2xAg2030; #journalofdairyscience; #transitioncow; #fatmetabolism

DSD 2.10 | Impact of on farm feed in your AMS

To help save feed costs, many producers have turned to on farm feed as a resource. However, what is not well understood is the impact of this choice for dairies using automatic milking systems (AMS), or robots.Dr. Greg Penner and his team at the University of Saskatchewan researched the feasibility of using home grown, steam-flaked barley versus pelleted barley for guided-flow AMS barns.
Listen in this month to learn what the potential impact of this management choice on your lactating herd. The title of the @JournalofDairyScience article in press is: Comparing steam-flaked and pelleted barley grain in a feed-first guided-flow automated milking system for Holstein cows. In press in volume 104.
The improved audio on this recording is thanks to a generous supporter of the Dairy Science Digest podcast. If you would like to sponsor a future podcast, please reach out at: reagan@modairy.org.
 
#2xAg2030

DSD 2.9 | Educating Consumers

This month we’re going to navigate a bit away from production practices and talk about consumers understanding of our products. By better understanding HOW consumers view the image of our industry, we can become better advocates and perhaps sell more products. Dr. Laurel Redding joins us today from the University of Pennsylvania, school of Veterinary medicine. Her Journal of dairy Science article, currently in press, is titled: Educational interventions to address misconceptions about antibiotic residues in milk can alter consumer perceptions and may affect purchasing habits.
She studied the effect of 3 different educational materials on consumer's opinion of dairy. The three used are: 1. Control - https://www.myplate.gov/eat-healthy/dairy2. Brochure: https://figshare.com/articles/figure/Untitled_item/151667133. Video: https://vimeo.com/518895384 
Listen in to see how just 3 minutes change change the minds of your future dairy consumers!
#2xAg2030 #JournalofDairyscience

DSD 2.8 | Consider Cobalt

Essential trace elements are “essential” because the diet is the only source. However, sometimes because they are trace, we tend to forget about the importance.
Listen in this month to learn from Dr. David Casper about the importance of cobalt in energy metabolism of your lactating herd. This specific research project is discussing the difference between sources of cobalt, carbonate vs lactate.  
The title of the @JournalofDairyScience: Supplementing additional cobalt as cobalt lactate in a high forage total mixed ration fed to late lactation dairy cows, is currently in press in volume 104.
The improved audio on this recording is thanks to a generous supporter of the Dairy Science Digest podcast. If you would like to donate, please reach out at: reagan@modairy.org.
 
#2xAg2030

DSD 2.7 | Timing of Prefresh Vaccination matters

Timing is everything - by shifting your prepartum vaccination program by one week, can make big difference in the success of your transition program. Dr. Schuenemann, Ohio State’s Extension state dairy veterinarian, investigated the difference between giving prepartum vaccines at day -28 vs -21. Listen in to hear why the industry should consider the shift to 4 weeks out to improve uptake of IgG in the mammary, the site we need it.
This continues our theme of: “Doesn’t cost a thing” – management changes we can make that make a difference. This podcast highlights the two part papers in press in the Journal of Dairy Science titled:
Effects of prepartum vaccination timing relative to pen change with an acidogenic diet on serum and colostrum immunoglobulins in Holstein dairy cows and The effect of Prepartum Vaccination relative to pen change with an acidogenic diet on lying time and metabolic profile in Holstein dairy cows.
Both are currently in press at the @JournalofDairyScience, 104.  
#2xAg2030

DSD 2.6 Doesn't cost a thing

Heifer development, one of the most expensive enterprises on the farm, all expense with delayed return. This month, Dr. Jolet Van Niekerk summarizes a comprehensive review of heifer development in the Journal of Dairy Science, titled: New frontiers in calf and heifer nutrition—From conception to puberty.
This article in press is the ADSA Foundation Scholar award recipient for its comprehensive review. While there are many things we can manage that does have cost, surprisingly the most important message Dr. Van Niekerk wanted dairy producers to know, DOESN'T COST A THING!
We hope you'll listen in - 
 
 
 
#2xAg2030, #Journalofdairyscience, #MODAIRY, #dairyheiferdevelopment 

DSD 2.4 | Reproductive Success for late calving grazers

In this edition of Dairy Science digest Dr. Matt Lucy, Editor in chief of the Journal of Dairy Science Communication and Reproduction physiologist from the University of Missouri, discusses work he and team published this month about successfully synchronizing late calvers in a seasonal calving system.
Grazers represent a large portion of Missouri's dairy industry. Ensuring a tight calving window helps match cows with ideal forage growth pattern.
Tune in to learn how to effectively "reset" those late calving cows. 
 
Dairy Science digest covers the most current topics being published in the Journal of Dairy Science.
Designed to never exceed 20 minutes, this podcast provides the “need to know” information for dairy producers with boots on the ground.
Here's direct (open) access to the journal article in press titled:"Reproductive performance of early- and late-calving dairy cows artificially inseminated after ovulation synchronization and estrous resynchronization orartificially inseminated after observed estrus"
@JournalofDairyScience #2xAg2030

DSD 2.3 | Fresh Cow Ration - Protein Matters

In this edition of Dairy Science digest Dr. Bill Weiss, from The Ohio State University, discusses work he and his co-author Alex Tebbes recently completed on determining the ideal amount of crude protein for your fresh cow pen. Additionally, they determined the sweet spot for forage for the recently fresh cow to ensure the highest intake  - and therefore energy corrected milk.
The INVESTMENT in the first 24 days, showed carryover effects for 11 weeks in lactation - easily supporting the elevated cost. 
Here's direct access to the journal article in press titled: "Concurrent and carryover effects of feeding blends of protein and amino acids in high-protein diets with different concentrations of forage fiber to fresh cows. 1. Production and blood metabolites"
 
#2xAg2030
#JournalofDairyScience

DSD 2.2 - The Future of Milk testing | pregnancy, disease and efficiency

In this edition of Dairy Science digest Professor Mike Coffey, a researcher from the Scotland, describes the advancements with inline milk sampling. He explains how improvements in technology allows us to analyze subtle changes in the milk. These subtle changes occur with pregnancy, disease, metabolic disruptions and even to differentiate efficient cattle from the less efficient.
This non-invasive data collection opportunity could radically transform the information we could use to manage our herd.
Dairy Science digest covers the most current topics being published in the Journal of dairy science. Designed to never exceed :20, this podcast provides the “need to know” information for dairy producers with boots on the ground.
This episode highlights: “Predicting pregnancy status from mid-infrared spectroscopy in dairy cow milk using deep learning” is in press in the #journalofdairyscience and can be accessed here: https://doi.org/10.3168/jds.2020-18367
#2xAg2030
 

DSD S2E1 Solar Panels in your dairy system

This episode we learn from Dr. Bradley Heins, from the University of Minnesota, all about integrating solar into your dairy grazing operation. He has learned about construction considerations, cow cleanliness and the shading effect of solar panels added to a rotational system.
His research titled "Evaluation of solar photovoltic systems to shade cows in a pasture-based dairy herd", is in press in the Journal of Dairy Science volume 104.
@journaldairyscience  #2xAg2030
Keywords: Dairy, Solar, grazing, heat stress