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Mike Brook

Mike Brook

Professor and Extension Specialist in Dairy Management at Kansas State University; dairy nutrition, management, and heat stress abatement expert

Aug 23, 2026

13:12
Can you remind people briefly what was found there? Yeah.
13:18
Yeah.
13:18
I mean, one thing is we always had the hypothesis that this was dangerous and that this was hurting people.
13:25
And it was only when Jeff emailed us a few days ago that we heard a firsthand account.
13:30
And this just now is the first time I heard all the details.
13:33
And that's more harrowing than I even imagined.
13:36
So kudos to both of you for still having your heads on straight after that.

25 MINS LATER

38:33
But I would love to hear, you know, Mike and Nicole, what are your kind of, do you have any thoughts after you after kind of hearing this all put together in one place?
23:39
Mike says that supplemental fans and soaker systems are the most effective tools for keeping cows cool.
23:46
Today I'd like to visit with our Kansas dairy producers concerning some issues we have with heat stress as it relates to dry cows and the calves that they will eventually have.
23:57
As we look at some of the recent research that has looked at the performance of calves that are born to heat stress dams, there's some interesting data that may help us as we look at where we need to expend some more money as it comes to heat stress abatement on our dairy farms.
24:16
Some of these studies have shown that heifers born to heat stress dams actually produce less milk in their first lactation, about 2,000 pounds less than those animals born to dams that were not heat stressed.
24:31
As we look at these generations, one of the things that...
24:36
It's also noted is that performance in the second lactation as well as even the third lactation is reduced compared to those calves that were born to dams that were not heat stressed late in gestation.
24:50
As we think about late gestation, what's actually going on in the calf, that is the period where many of the fetal organs are still developing and actually growing at fairly high rates of growth.
23:17
If it's not as effective as they'd like, K-State dairy specialist Mike Brook encourages them to focus less on adult flies and focus more on eliminating the spots where fly larvae tends to build up.
23:29
Today I'd like to visit with our Kansas dairy producers concerning fly control.
23:34
As we approach midsummer, how are you doing with fly control around your dairy? You know, a lot of times when we think about fly control, what we concentrate on is the adult flies, and that's really a lot of times where we focus a lot of our control methods.
23:50
However, what's the real problem? The real problem actually is the buildup of larvae around our dairy and the population that those larvae will produce on our dairy.
24:01
And as you think about what you should do for control, it's really important that you think about some of these questions that are actually concerned with where you might find those larvae.
24:12
So before you reach for the next bottle of insecticide to control the adult flies, let's do something about some of those fly breeding areas that are contributing to that fly population.
24:25
So when you think about stable flies, the biting flies, a lot of times as you get to this time of the year, we see fewer and fewer of those, which is a good thing.
23:20
He says the goal before cutting is for whole plant moisture to be 35 to 38 percent dry matter, and kernel depth should be around 80 percent hard starch and 20 percent milk.
23:31
Today I'd like to visit with our Kansas dairy producers concerning the upcoming corn silage harvest.
23:38
You know, here in central Kansas, most of our corn has been actually tasseled for a few weeks now, so as we think about silage harvest, it's really upon us probably to two to four weeks from now.
23:51
It really depends on just how much rain we continue to get as well as how hot it is.
23:56
And if it turns off hot and dry here in the next few weeks, it'll speed that harvest time up.
24:04
So many of the questions I get this time of year is when should we pull the trigger and when should we actually start chopping our corn for corn silage? There's two things you really need to evaluate.
24:15
One is whole plant moisture.
25:42
The other common question I get this
23:12
As America celebrates 250 years as a nation, K-State dairy specialist, Mike Brook, looks at how the dairy industry has transformed from localized labor-intensive family homesteads with a single dairy cow into a high-tech data-driven sector.
23:28
Today, I'd like to visit with our Kansas dairy producers concerning 250 years of progress in our US dairy industry.
23:37
You know, if you think about, uh, dairy farming, uh, 250 years ago, it really consisted of a lot of families with a single cow, and that animal provided, uh, milk for individual families.
23:49
Now we have, uh, facilities that might house 50,000 or 60,000 head of lactating dairy cows.
23:57
As we think about this, 250 years of progress has come about because of a lot of innovation within our industry.
24:05
As we look at how our industry's grown, we've grown from the single cow family, uh, operations to a global powerhouse of nutrition.
24:15
It's still a lot of hard work.
23:19
K-State dairy specialist Mike Brooks says those without that type of technology should designate at least one employee to check cooling systems daily to make sure they're functioning properly.
23:30
Today I'd like to visit with our Kansas dairy producers concerning heat stress on their dairies and some of the things that we need to be watching for as we start into the summer.
23:41
As we look at these stretches of heat stress that run maybe somewhere between 5 to 10 days in length before we get a chance to recover a little bit, those are really detrimental to the milk production in our dairy herd as well as our repro programs.
23:59
So earlier we had visited about getting ready for heat stress and doing all your maintenance, making sure that your systems are working.
24:07
But today I wanted to visit about how you monitor those systems.
24:11
You know, we've got some really neat technology out there that we utilize in the dairy industry now to continuously monitor the body temperature of our dairy cows.
24:22
And while many farms have it, most do not.
26:07
it?
23:10
As the new world screwworm continues to be a concern, K-State dairy specialist Mike Brook reminds Kansas producers to continue monitoring their herds and calving areas for signs of NWS.
23:23
Today I'd like to update our Kansas dairy producers concerning New World Screw Worm and where we're seeing activity here in the United States.
23:32
As of this morning, there were 15 total cases reported across Texas and one case being in New Mexico.
23:40
So we are seeing some spread and it seems like every few days we learn of a new infection emerging from one of the counties in Texas.
23:48
Keep in mind that there are strict quarantines being put in place around each of these new cases and also additional zone around that where they're doing increased monitoring.
23:59
So we are trying to keep abreast of where the insects might be moving and where we're finding the larvae in animals.
24:07
So as a Kansas producer, what should you be concerned about? Well, number one, if you would be happening to travel into Texas, I'd encourage you to make sure you take a look at the most current screw worm location map to make sure that you're not traveling into an area that's actually under quarantine.
6:07
Do you see these trends of people liking whole milk more right now impacting producers?
6:12
So from a producer standpoint, most of our producers across the United States are actually paid on the basis of components.
6:22
So they actually, their milk rather than total pounds of milk were paid for the pounds of fat, pounds of protein, pounds of other solids that are contained in that milk.
6:35
And that's been the case for most of our producers for probably much of the last 20 years or so.
6:43
And there's some areas of the United States that are still paid based on total pounds and not so much emphasis on components.
6:52
But for most of us, components are important.
6:54
So what we've seen happen is for years, the average butterfat percentage in milk has was 3.3, 3.4, maybe 3.5. That was kind of the flow into the plant.

10 MINS LATER

17:14
When we're thinking about dairy from each of your perspectives, what's next or what are you excited about?
23:23
However, K-State dairy specialist Mike Brook says the slight increase in milk prices during that same period is probably not keeping up with the increases in other on-farm expenses.
23:34
Today, I'd like to visit with our Kansas dairy producers concerning the variability that we have seen in commodity prices of various ag products and how that relates to what's happening in our dairy industry.
23:46
If we kinda take a look back over, uh, the, uh, last ten years, for most years, we've seen an actual decrease in the Class One or fluid milk receipts across the United States.
23:59
In general, some of our milk is being diverted from Class One to, uh, other products.
24:06
That is to be expected with the demands that we have from our consumers in looking for, uh, other, uh, types of dairy products besides Class One milk or milk in the jug.
24:17
And while we see, uh, growth areas in these other products, we, uh, tend to, uh, generally see a decrease in the amount of milk that's being consumed as a beverage.
24:27
However, more recently, we've seen some of that actually increase slightly, so moving forward maybe that'll be a help for us.
23:14
As a precaution, K-State dairy specialist Mike Brook says the continual and regular monitoring and evaluation of all livestock are important for herd and flock biosecurity and health considerations.
23:27
Today I'd like to visit with our Kansas dairy producers concerning the issues that we're currently having with screwworm here in the United States.
23:34
Number one, what I want to assure everyone is that our food supply is safe.
23:39
So we have inspection programs in place both on the meat side as well as on the milk side that keep our food supply safe.
23:47
So there's no danger to the safety of the food that you're buying in the grocery store or other places.
23:53
Since early June, we've had now, as of this recording, four total cases identified and confirmed in the U.S. Two of those involved calves, one dog, and also one goat.
24:05
All of these are confined at this point to...

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