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Get Cows Ready: Winter Tips for Better Calves

Robert Malmstrom

If there’s one time of year you absolutely cannot afford to fall behind, it’s the 60–90 days leading up to calving because winter management directly influences calving success and herd health.

Poor cow condition, weak calves, delayed breed-back, scours outbreaks, slow colostrum letdown—it almost always ties back to winter management, not spring calving.

So today, we’re breaking down the big three things that actually matter this time of year:

No fluff. No theory. Just practical tips you can use this week to get ahead before calves hit the ground.

Let’s dig in.

Why Winter Sets the Tone for Calving Success

Here’s something many people don’t think about:

Your calves are already “calving” right now.

Not literally, but nutritionally.

The last 60 days of pregnancy are when a cow:

Suppose she’s running short on any of those. In that case, you’ll see it in February, March, or April—not in December when the problem actually started.

Calving problems don’t show up overnight.

They start now.

1. Start with Cow Condition: The #1 Predictor of Calving Outcomes

If you only focused on one thing this winter, it should be this:

Keep cows in a 5.5–6 BCS going into calving.

Not a four where you can see ribs.

Not a seven where she’s fleshy and sluggish.

A clean, moderate 5.5–6.

Why? Because the condition impacts:

A cow that’s too thin is going to struggle. A cow that’s too fat will burn energy faster than she can take it in once the weather turns bad.

Here’s the part people forget:

You simply can’t put real weight on a cow in January—not when the weather is fighting you every step of the way. Cold temperatures crank up her energy needs, meaning most of what she eats is burned just to stay warm. Add in low-quality hay and a mineral program that started too late, and you’re basically trying to climb a hill that gets steeper every day. By mid-winter, you’re no longer “adding” condition—you’re just trying to keep her from losing more. That’s why the real work of winter body condition starts long before the calendar flips to the new year.

If she’s behind in December, she’s going to stay behind.

Body Condition Rules to Stick To

Heifers need extra cushion because:

And suppose you want a deeper dive on feeding young females. In that case, I cover that in Really Simple Winter Nutrition Guide for First-Calf Heifers, which explains why December is the danger zone for condition loss (this fulfills the internal link).

2. Don’t Skimp on Protein: It Drives Everything

Protein is what fuels:

Without enough protein, cows may look “full”… but you’ll notice:

Many folks underestimate how much protein winter cows actually need.

General Protein Targets

If your hay is:

…you are short on protein. Period.

Cheap, Simple Protein Options

Protein doesn’t just add weight.

It makes every bite of hay work better.

3. Energy Makes the Difference in Cold Weather

Cold stress hits even hardy West Texas cows harder than most folks realize, and winter is when their nutritional needs quietly jump. Once temperatures drop below about 32°F, cows start burning extra calories to stay warm. When you add wind chill into the mix, their energy requirements can spike by 20–30% almost overnight. That means any cow already sitting on the edge of acceptable body condition is at real risk of falling behind fast. This is precisely why supplementing winter forage isn’t just helpful—it’s the difference between maintaining a productive herd and watching performance crash when the cold sets in.

Easy Ways to Add Energy (Without Going Broke)

You don’t have to overhaul your program—just step in with small, strategic boosts during weather events.

Think of it as putting gas in the tank before a long drive.

4. The Colostrum Secret: It Starts Weeks Before Calving

Everyone knows colostrum is essential, but what often gets overlooked is that high-quality colostrum doesn’t just “happen” at calving—it’s built slowly and steadily throughout late gestation. A cow’s nutrition in the weeks leading up to birth directly affects the antibodies, energy, and volume of colostrum she’s able to produce. If she’s short on protein or energy during this window, the calf pays for it on day one with weaker immunity and a rougher start. That’s why smart winter forage supplementation isn’t just about keeping cows in condition—it’s about setting up newborn calves for a healthier, stronger first 24 hours.

It’s directly tied to:

You want a calf hitting the ground and nursing thick, rich, antibody-packed colostrum, not the watered-down stuff that shows up in nutrient-deficient cows.

How to Improve Colostrum Quality

And remember—first-calf heifers produce less colostrum.

Anything you can do to support them nutritionally pays off fast.

5. Trace Minerals: Small But Critical

If there’s one thing in a winter nutrition program that offers a huge payoff with almost zero downside, it’s trace minerals. Copper, zinc, selenium, and manganese might not look like much on a tag. Still, they quietly drive immunity, reproduction, and calf vigor in ways most folks never see until something goes wrong. When cows come up short on these minerals during late gestation, colostrum quality drops, calves hit the ground weaker, and postpartum recovery takes a hit. The good news is that correcting mineral gaps is simple, affordable, and one of the most reliable ways to support cows through winter. A solid mineral program is hands-down one of the smartest investments you can make before calving season.

Copper, zinc, selenium, and manganese are responsible for:

You’ll never see the work minerals do—they’re invisible—but you’ll see the problems when they’re missing.

Easy Mineral Guidelines

This is an area where “good enough” rarely is.

One solid resource worth reviewing is this mineral guide from the University of Nebraska, which does a great job breaking down mineral roles and symptoms.

6. Water in Winter: The Overlooked Heavy Hitter

Cows will drink 25–40% less when water is ice-cold or muddy.

And when water intake drops:

That’s a downward spiral at the worst time of year.

Quick Fixes for Better Winter Water Intake

A cow that drinks well is a cow that eats well.

A cow that eats well is a cow that calves well.

It’s all connected.

7. Keep Stress Low (Especially for First-Calf Heifers)

Stress is one of the biggest hidden thieves in a cow herd—it quietly robs nutrients, drains energy, and chips away at body condition long before you ever notice a visible problem. When stress rises, cows burn calories they should be using for fetal growth and colostrum development, and the hit to colostrum quality can be huge. That’s why managing stress isn’t just a “nice to do,” it’s a critical part of protecting calf health before they ever hit the ground. Young females, especially first-calf heifers, are the most vulnerable because they’re still growing and already stretched thin nutritionally. Keeping stress low pays off in healthier cows, stronger calves, and a smoother calving season all around.

Stress-Reducing Winter Tips

Even small reductions in stress will show up in:

8. Don’t Forget Parasites—Even in Winter

Cold weather doesn’t eliminate parasites; it just slows them down.

Late-gestation cows with parasite loads will:

A simple winter deworming—or a strategic combination product—can have a significant impact. If you need a refresher on parasite basics, I covered it in How To Really Control Summer Parasites Without Chemicals, which pairs well with winter planning.

9. How to Prioritize Your Winter Nutrition Efforts

If you’re trying to stretch your budget, here’s how to prioritize:

Tier 1 (Essential)

Next, Tier 2 (Highly Valuable)

Tier 3 (If You Can Swing It)

Get Tier 1 correct, and you’re already ahead of most operations.

Final Thoughts: Calving Season Success Starts Now

Most of the problems folks deal with at calving—slow calves, weak calves, cold stress, complicated births, scours—don’t start during calving.

They start in winter.

If you:

… you’re not just “getting through” calving season.

You’re setting yourself up for your best one yet.

Healthy cows produce healthy calves.

Healthy calves grow into profitable calves.

And it all starts now—long before the first pair w

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