Anna Kobza, Ph.D.

Anna Kobza, Ph.D.

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06/03/2026

Our synching protocol is somewhat of a blend of fixed time AI and heat detection. We will heat detect for the first 72 hours and AI accordingly. After that anything that has not responded or not presented standing heat, will get AI’d anyway. This helps us reduce the amount of time we need to commit to heat detection but also helps us AI more heifers that we’re certain are in heat. It works for us! This year we’re breeding heifers to True North. We only breed heifers all the cows will be bred natural service by our herd bulls. I’m happy to chat breeding programs but I have to give a disclaimer that this is not my area of expertise, I rely heavily on our AI technicians advice and knowledge.

Photos from Anna Kobza, Ph.D.'s post 05/31/2026

There’s almost 60 years between these two photos.

This is my grandpa, Robert Gillespie. “Big Bob”.
He got into the cattle feeding business in the early 1960s. In the 1960s, large commercial feedlots were emerging across the plains, and Nebraska was becoming a premier feeding state. He and his partners, the Augustin brothers were one of the early adopters of large scale cattle feeding near Shelby, Nebraska.
1967 is when I believe this photo was taken. And a lot has changed since then.
In my bookcase sit a short book he wrote detailing him and my grandmother’s lives. Of course he tells stories of the feedlot which are my particular favorite. Like when an Alabama salesman came to the yard selling oyster shell flake as a roughage source, and how they ended up feeding it.

He wrote about the end too. The hardships of the 1980’s farm crisis, when 24% interest rates made it impossible to keep going. “…there was no way we could make the payments. It would eat us up.”

In 1967, the Omaha Stockyards were already seeing a decline in livestock receipts as the industry began shifting toward direct buying by packing plants and away from the traditional central market system.

In 1967, Nebraska finished about 3.1 million head of cattle.
Today we lead the nation finishing over 5 million head every year.

Beef was king of the meat trade then, and today’s it’s still king among consumers.

A lot has changed.
We feed cattle longer.
We feed them heavier.
We produce higher quality carcasses.
We read bunks with a laptop at our side instead of just a pen and paper.
We use micro machines and technology that would have been unimaginable sixty years ago.

Our tools are different, our cattle are different, and our industry as a whole is different. But despite being separated by nearly sixty years, here we are, standing in the same place.

05/28/2026

So we call it branding day… but that’s only part of it! Yes we put our brand on these calves as a permanent mark of ownership, but we are also vaccinating and on our operation we’re implanting those calves.

What we’re vaccinating against is respiratory disease. Specifically with a modified live vaccine targeting IBR, BRSV, PI, Mannheimia Haemolytica as well as pasturella multocida.

Secondly we’re giving a 7 way clostridial. Which is a killed vaccine or a toxoid

It is important who you give these vaccine guns to and that they are mixed and handled correctly, as well as administered in separate injection sights subcutaneously.

On our operation we implant the bull calves that are being castrated and turned into steer Calf implants give an average weaning weight advantage of 23 lbs. Pounds always pay, but in today’s market especially it pays to have a heavier calf crop.

Now this is also an important job because there’s real dollar value that it returns to us, and improperly administered implants are much less effective.

We will not implant any heifer calves because come fall time we will pick replacement heifers to keep in the breeding herd. Giving her an implant could disrupt her reproductive tract development and future fertility and therefore her longevity in the cow herd.

So yes, we put our brand on these calves today, but more importantly, we invested in their health, performance, and future long after they leave this ranch.

Photos from Anna Kobza, Ph.D.'s post 05/18/2026

April recap before May runs away on me!

Photos from Anna Kobza, Ph.D.'s post 04/27/2026

attempting a profile pic update… thoughts? 1 or 2? 3 or 4? 5?? help.

04/21/2026

Ionophores are one of the tools we use to improve feed efficiency. In other words, it increases the amount of gain for each pound of feed consumed.

Rumensin contains the active ingredient monensin. And monensin is classified as an Ionophore antibiotic. BUT, we don’t feed rumensin to cure a disease or clear an infection in the feedlot. In beef cattle, Rumensin is labeled for 2 things in beef cattle:
1. To improve feed efficiency
2. Preventing and controlling coccidiosis
In the feedlot, we’re feeding it to improve feed efficiency.

Now maybe you’re wondering if it’s classified as an antibitoic, why isn’t it used like one?

Because it doesn’t work like the theraputic macrolide antibitoics you’re thinking of. The mode of action is different.

Monensin works by transporting ions across microbial cell membranes causing a disruption in ion gradients or their internal balance. This is what gives it antimicrobial activity.

Rumensin specifically targets gram positive bacteria. And as a result there are changes in the microbial population which shifts volatile fatty acid production. More specifically, there is a shift towards more propionate and less aceate and butyrate.

And this matters because propionate is a more efficient energy source for the animal. The animal is able to capture more energy from the feed when more propionate is produced. As a result we see a decrease in dry matter intake and overall a reduction in variation in intake, and we end up with improved feed efficiency.

So, again, we’re not feeding rumensin to treat an illness, we use it to manipulate rumen fermentation in a way that improves feed efficiency. Which is exactly what it’s labeled to do.

Rumensin specifically is dosed at a rate of 50-480mg/hd/day but industry commonly feed on the upper end of that range.

Photos from Anna Kobza's post 11/16/2025

Shipping calves and making home reno progress this weekend.

Photos from Anna Kobza's post 10/30/2025

When the board dipped last week, it caught the beef industry’s attention in a way that felt overdue. Many came online expressing shock, frustration, anger, dissapointment. Completely valid feedlings. He stood on Air Force One, said he planned to import more Argentinian beef and the next day told us he “loves” us, but we’re incapable of understanding our own business. So as I’ve watched the reactions this last week, I have felt the same dissapointment and anger, but I certainly wasn’t shell shocked. This didn’t feel sudden. It felt like the predictable result of patterns that have been there for a while.

I say this plainly, not critically: this isn’t the first red flag.

In truth, I think the price of beef for what it takes to produce it is fair. And importing more beef from Argentina is unlikely to meaningfully lower prices. And now, very quickly, we’ve been handed a “comprehensive plan” to solve everything. A 13 page document that looks like I could have whipped it up in canva. I know some people feel hopeful about it. If it gives you hope, I won’t take that from you. But you’re more optimistic than I am. To me, this reads more like a temporary way to quiet the noise than a long-term strategy. I would be genuinely glad to be proven wrong.
The people I know in the beef industry are proud of what they do, myself included. Feeding people matters. That pride in producing food for our country is sincere.

But I think we need to talk honestly about something harder.
If we are proud to feed the nation, then we should care deeply that millions of Americans are struggling to eat.

Earlier this year, the Trump administration cut $1 Billion dollars in federal funding for schools and foodbanks to buy fresh food from local farms. This affected children, families, and small producers. It didn’t draw the same outrage, but it should have.

Right now, 47 million adults and children experience food insecurity. Nearly 42 million rely on the SNAP benefits expiring tomorrow. And instead of creating policy that focuses on reducing hunger, the proposal on the table is to place tighter restrictions on what people using SNAP are allowed to buy. Conditional access to food isn’t policy. It’s control.

From what I understand, the USDA currently has $5 billion in reserve funds that could be used to extend food assistance during the shutdown. But this administration is refusing to release it.

Meanwhile, we have $40 billion to bail out Argentina and more to tear down the people’s house to construct a ballroom.

In a healthy governemnt a shutdown ends quickly. Because leaders on both sides prioritize the well being of the people they represent.

Most of us in agriculture are far closer to needing food assistance someday than we are to being billionaires. I think it’s important that we remember that.

We don’t owe politicians loyalty. They owe us representation. And accountability when they withhold it.

Also, we still haven’t seen the Epstein files.

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