Wednesday, June 19, 2024
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When You Move an Animal to a New Place, Don’t Make it Eat New Foods Too

When dining out, especially in a new place, creatures prefer familiar diners and eating with friends.
When dining out, especially in a new place, creatures prefer familiar diners and eating with friends.

One of the challenges your livestock face on a daily basis is picking out something safe to eat without the benefit of food safety labels, or any labels at all for that matter. They’ve solved this dilemma by eating what those around them eat. But when we haul them to a pasture with forages they’ve never seen before, or drop them off at the feedlot to fatten up by eating a strange looking total mixed ration out of strange troughs, things can get a little dicey. In pasture, they may choose the wrong forages, or just quit eating for awhile until they get things figured out. And in feedlots, well we’ve all heard of cattle losing weight or getting sick when they first arrive at the feed yard.

This is a demonstration of lambs trying a new food. It takes them about 6 days before they really start eating the rice. Then, when a new flavor is added, it is no longer the same food to them, so the cut back on how much they eat.
This is a demonstration of lambs trying a new food. It takes them about 6 days before they really start eating the rice. Then, when a new flavor is added, it is no longer the same food to them, so they cut back on how much they eat.

So why don’t animals just use “instinct” to make good food choices? The answer is that though it’s instinctual to WANT to eat, none of us is born with the knowledge of WHAT to eat. We learn from our mothers, peers, and others what to eat and what to avoid, and we only experiment with other foods when we absolutely have to. When all the foods we see are unfamiliar, another instinct kicks in to make us safe: the fear of new things. If you landed in the market in Morocco and saw nothing you’re familiar with, what would you do?  It turns out that cows, and most creatures, in unfamiliar places take a few bites of something new, and then wait to make sure it doesn’t make them sick.  Experimenting through trial and error can take a little while, thus animals lose weight.

In extreme cases cattle have actually chosen to eat a familiar toxic plant over unfamiliar nutritious plants in a new pasture. This was the experience of a western rancher who had to move a portion of his herd because of drought on his home ranch. Mick Holder said that in 30 years of ranching, he’d never had problems with cattle eating the locoweed or lupine on his home base. The cattle that stayed home did fine, but those that were moved 100 miles away ate the familiar, toxic weeds and many died.

Which would you choose if you were far from home and didn't know anything about Tim Horton's?
Which would you choose if you were far from home and didn’t know anything about Tim Horton’s?

Just so you know, cows aren’t the only creatures to do this. I was in Canada on a speaking tour for a week some years back. On the first morning I woke up in a new town needing breakfast, I looked out my hotel window to see what might be available. Across the street was a busy place called Tim Horton’s. I’d never seen a place like that. But I did recognize the Golden Arches of McDonald’s about a 1/4 mile down the road. Even though the food at McDonald’s isn’t my favorite, I at least knew what to expect there, so I bundled up to trudge through the snow and sub-zero weather to get some breakfast. I later learned from one of my hosts, that Tim Horton’s was a much better choice, offering bagels, hot soup and great sandwiches.

If we look back at Mick Holder’s cows, there are likely two reasons the traveling cows poisoned themselves. First, we know that animals will choose the familiar over the unfamiliar. Second, research has shown that when creatures are under stress a lower dose of a toxin can have a much greater impact. Amounts of lupine that the cattle could have safely eaten at home became deadly because the cattle were already stressed by being in unfamiliar surroundings.

So what should you do to make sure your livestock are safe when you move them to a place they’ve never been before? You have a variety of options:

• Bring some food from the new place to their familiar pasture so they can try them there first.
• Bring some hay/forage from their familiar pasture to tide them over while they get used to their new home.
• Have animals that are familiar with the new pasture be the “hosts” for the new arrivals, showing them the ropes and what to eat and where to drink.
• If you know there is something that could be a potential threat, fence it out of the pasture.
• Reduce the initial stress of arriving in a new place by making sure animals are full when they arrive, or have plenty of familiar food to eat when they arrive.

Photo courtesy of LSU Ag Center
Photo courtesy of LSU Ag Center

If the new place is the feed lot, you can prepare your cattle for the new environment ahead of time by introducing them to the Total Mixed Ration and to eating from troughs at home. There is a lot of research out there on this kind of “backgrounding” that shows both success and a lack of real difference.

One last thought, when I was running my big goat herd, I used to take about 10 to 15 minutes to show them around the new pasture they’d be working in. I showed them where the water was, the fence line, and a good spot for bedding down. I found that they settled in more quickly, and were less likely to test the fence. They also didn’t just hang at the gate hoping I’d come back again. Sometimes that little bit of time you take to welcome your livestock to their new homes can make our lives a lot easier.

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Kathy Voth
Kathy Voth
I am the founder, editor and publisher of On Pasture, now retired. My career spanned 40 years of finding creative solutions to problems, and sharing ideas with people that encouraged them to work together and try new things. From figuring out how to teach livestock to eat weeds, to teaching range management to high schoolers, outdoor ed graduation camping trips with fifty 6th graders at a time, building firebreaks with a 130-goat herd, developing the signs and interpretation for the Storm King Fourteen Memorial trail, receiving the Conservation Service Award for my work building the 150-mile mountain bike trail from Grand Junction, Colorado to Moab, Utah...well, the list is long so I'll stop with, I've had a great time and I'm very grateful.


  1. OK, so I’m not comfortable with math.

    But, if you had a large pasture/rangeland, and spend $200 of your time walking part or all of the land with the animals as you did with your goats, well. . . that would cost you–$200. If you didn’t do it, and saved $200 (so to speak) and lost one animal to eating unfamiliar food which turned out to be poisonous, it would be more than the $200.

    If I don’t walk the cows through a paddock (mine are tiny) and show them the perimeter, the loss of time for me would be much greater if one of those adventuresome cows test the fence and find a weak spot–and then I use up a lot more time.

    Sometimes what saves time costs money.

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