When You Feed Bought Calves, the Wreck Is Coming. Get Ahead of It.

You back a load of sale-barn calves off the trailer, and for a week they look fine. Then about day ten you walk out to the bunk and there is one standing off by himself, head down, a little snotty, not interested in feed. You know exactly what it is, and you know he is not going to be the only one. Shipping fever. Every farmer who has ever fed bought cattle knows that knot in the stomach, because you know what is coming down the pen.

Here is the thing about those calves. They came off a sale barn with an unknown history, commingled with cattle from who knows where, hauled, sorted, and stressed, and their immune systems are on their heels right when they hit the biggest challenge of their lives. Shipping fever, the respiratory wreck, tends to come on hard about seven to ten days after they arrive. That timing is not bad luck. It is the stress catching up with them.

Doctoring is an uphill fight, and the losses are there either way

Here is the part that makes it so hard on a farmer-feeder. The old cattlemen have a saying: the time to treat pneumonia is two days before you see symptoms. By the time that calf is standing off with his head down, you are already behind. And you, more than anybody, are set up to get behind, because you are not standing at the bunk all day. You are in the field, or fixing something, or hauling, and you catch the sick one that evening or the next morning instead of the hour he broke. On a big yard there is a crew riding pens whose whole job is catching them early. On your place, that crew is you, between everything else.

So you doctor your way through it, because you have to. You pull the one you caught, hit him with the big gun, and you get most of them back on their feet. But here is the thing nobody likes to say out loud: it is an uphill fight, and the losses are there even in the ones you save. A calf you pull and treat and get back on track is not the same calf he would have been. He fell behind, he gains slower, he closes out lighter, and he cost you the medicine, the time, and the days he did not put on. You can win the fight for his life and still lose ground you never get back. That is on top of the ones you do not save at all.

And the shelf you used to reach for is gone

It got harder in 2023. The over-the-counter antibiotics a lot of us kept on the shelf, the ones you used to grab when a calf broke, now need a veterinarian’s prescription. If you do your own doctoring and you do not have a tight relationship with a vet, you felt that. The tools for fighting the wreck after it starts got harder to get, right when cattle got worth more than they have ever been in our lifetimes.

Which points at the real answer, the one the old-timers were getting at. If you cannot win the race to treat, do not race. Get ahead of it. Build the calf so fewer of them break in the first place.

Feed the calf, do not just fight the bug

This is why we built PreVent. It is not an antibiotic, and it is not something you fight the wreck with after it starts. It is a patented immune modulator you feed to those calves on arrival, and it works on the one thing that actually decides how a load of high-risk cattle does: the immune system. PreVent primes that immune system, so the cattle respond better to the vaccines you are already giving them, and the ones that do get sick do not get as sick. The result you are after is simple, and it is the result we stand behind: fewer pulls.

Notice what that does for a man who cannot be everywhere. Fewer pulls means fewer sick ones to catch in the first place, which is the part you were losing at. It means fewer times you reach for the big gun. And because it is not an antibiotic, there is no prescription to chase, you feed it. It works the way the best cattlemen have always worked, they build a healthy animal instead of waiting to doctor a sick one.

None of this replaces good receiving. Clean water in front of them the minute they are off the truck, getting them found on the bunk, a low-stress start, and the vaccination and receiving protocol you and your vet settle on. PreVent works alongside all of that, and it helps the vaccines you are already paying for work better. It is the piece that has been missing from a receiving program a small outfit can actually run.

Does it pencil

At today’s calf prices, that question about answers itself. When a calf is worth what these are, keeping one more alive and gaining, and pulling fewer of the rest, does not take much to pay for itself. PreVent has a documented return built on Oklahoma State and USDA cost-of-a-pull data, and the honest way to look at it is not our number, it is yours. Figure what a pull costs you, in medicine and in your time and in lost gain, and figure what even a few fewer of them is worth on a load. Run it against your own pen.

The wreck you get ahead of is the one that does not blow your closeout. On cattle worth more than they have ever been, on a place where you are the whole crew, that is the difference between a good set and a rough year.

Not sure how PreVent fits your receiving program? Call Doc. We will talk through your cattle and your setup, no sales pitch.

Common questions about keeping bought calves healthy

Is PreVent an antibiotic? Do I need a vet prescription?
No. PreVent is a non-antibiotic immune modulator. There is no prescription to chase, you feed it. That is the whole point for the operator who does his own work and got stranded when the over-the-counter antibiotics went behind a script in 2023.

Does it replace my vaccines or my blanket treatment?
No, it works alongside them. PreVent primes the immune system so the cattle respond better to the vaccines you are already giving. Keep your receiving and vaccination protocol with your vet. PreVent helps it work better.

When do I start it?
On arrival, as part of your receiving. You are trying to get ahead of the stress and the wreck, so you start it before they break, not after.

Will it keep them from getting sick?
It supports the immune system for fewer pulls, and the ones that do get sick do not get as sick. It is not a cure and it is not a guarantee. You still run your receiving basics, and you still call your vet on a calf that needs one. What it does is tilt the whole load in your favor.

How is this different from just feeding a good receiving ration?
A good ration feeds the calf. PreVent is built to prime the immune system on top of that, with a patented ingredient (PRFC) proven across more than 12 million head. It is the immune piece, not the whole meal.