If you're wondering how strip grazing works and want to give it a try, we've got some tips for you.
Strip grazing is one of the most practical ways to manage your horse's weight on grass, and if you are battling to keep a good doer's waistline in check, you are in exactly the right place.
Grass gives most horses far more calories than they need, especially through spring and summer, and there is now solid research showing that a moving strip fence genuinely helps. Here is how to set it up, why it works, and what you need to run a strip on your own field.
Quick Answer: What Is Strip Grazing and Does It Work?
Strip grazing means fencing off a narrow section of grass with a moveable electric line, letting your horse graze it down, then shifting the fence forward to release a bit more. Does it actually work? The research says yes.
Ponies turned out on a whole paddock gain far more weight than ponies fed the same grass through strip grazing, according to research published in the Equine Veterinary Journal.
More recent findings reinforce the same rule: stricter pasture control leads to better weight management. For any easy keeper, laminitic, or metabolic horse, that control is everything, and the ungrazed pasture gets a chance to rest at the same time.
Why Grass Needs Managing
Horses are picky eaters. Turn them out in a whole field, and they will hunt down the young, sweet shoots, chewing those specific patches right down to the dirt while letting the rest of the pasture grow coarse and stemmy. This habit causes a double whammy: an overweight horse and a wasted field.
The weight gain worries most owners, and with good reason. Spring and summer grass is packed with sugars, meaning a horse on open pasture can pack away an alarming amount of calories daily without ever seeing a bucket of grain.
Obesity is a major trigger for equine metabolic syndrome and insulin dysregulation. When horses have high circulating insulin, they are vulnerable to hyperinsulinemia-associated laminitis—a painful and potentially devastating hoof condition. Keeping weight under control is the best way to dodge that danger, and managing pasture access is the cornerstone of doing it.
There is one important takeaway here: cutting back turnout time usually backfires. Horses and ponies are efficiency experts when it comes to eating. Turn a pony out for just a few hours, and it will gorge itself, consuming almost as many calories as it would grazing all day. The solution isn't restricting time on the grass.
It is restricting how much grass is within reach at any given moment, which is exactly what a strip-grazing setup solves. Some ponies and horses suffering a flare-up of laminitis should not have pasture turnout
"There are some horses and ponies that should never have pasture access, such as those actively suffering a flare-up of laminitis. Further, strip grazing for weight-loss purposes can only be performed during summer months, after the rapid early spring growth period is over," explains the researchers.
The Research Behind Strip Grazing
Strip grazing is not just tradition. Two studies led by Dr. Annette Longland, published in collaboration with SPILLERS, put it to the test and explained why it works.
In the original trial, twelve ponies were turned out in individual paddocks for 28 days in midsummer, each paddock sized to provide a set amount of grass. Some ponies got their whole paddock at once.
Others were strip grazed, with the fence moved a small amount each day. After 28 days, the ponies with full access had gained three to four times more weight than the strip-grazed ponies, and most of that gain happened in the first two weeks. The strip-grazed ponies not only gained far less, but they also gained it more steadily.
The follow-up study explained the mechanism, and it is genuinely useful to understand. When ponies had the whole paddock, they gorged on the best grass first, spending the opening fortnight eating the leafiest, most nutritious, highest-sugar growth and leaving the mature grass for later.
Their calorie intake in those first two weeks exceeded their needs by 42 percent. The strip-grazed ponies, by contrast, exceeded their needs by only 8 percent, because the fence stopped them reaching all the best grass at once and instead fed it to them gradually as the quality naturally declined. Strip grazing works by preventing that aggressive selective grazing.
One honest caveat from the researchers, worth repeating: these ponies were strip grazed from late June, after the rush of spring growth. Strip grazing is most reliable once the very rapid spring flush is over, and it may not be enough restriction on its own for a laminitis-prone horse when sugar levels are high.
Nutritional Value of Strip Grazing
Horses need to consume forage continuously. "Horses are designed to consume forage continually. When pasture time is limited, horses must be provided with other forms of forage, such as hay," said Fowler, Ph.D.,a Kentucky Equine Research Nutritionist.
"Many horses are only fed hay twice daily in 'meals' rather than having continuous access like when they're on pasture," says EquiNews. "Instead of completely taking horses off pasture, strip grazing might be a reasonable solution for decreasing pasture intake."
To understand the nutritive value and digestibility of pastures, the researchers collected and analyzed forage samples from grazed and ungrazed sections of strip grazing pastures.
They suggested that strip grazing can be used for weight loss by adjusting the distance the lead fence is moved. "This means that horses and ponies can lose weight and decrease their risk of developing hyperinsulinemia and laminitis while still having access to pasture."
Strip Grazing Setup
"Strip grazing uses moveable fences to give access to limited amounts of fresh herbage gradually. A horse is turned out in one section, and once that section is grazed down, the lead fence is moved forward to release a new section of ungrazed, mature pasture," explains Fowler. So how does this work?
Strip grazing is a practical management tool. Run a line of electric fencing across your field near one end so your horse can only reach the grass right in front of the wire. Once that pasture section is grazed down, shift the electric fence forward to release a new piece of forage. This method gives your horse controlled daily rations instead of letting them binge across the entire field.
Moving the wire prevents overgrazing and keeps your pasture rotation running smoothly, giving you total control over daily forage intake. The distance and speed of your fence moves depend on your grass growth and your horse's needs.
Fast-growing spring grass calls for small daily fence shifts. Slower growth allows for larger moves every two to three days. You can adjust the size of your strip grazing rations to help an overweight horse lose weight, hold a steady body condition, or keep an easy keeper from gaining pounds.
Check your horse's body condition score often to decide when to move the fence. Talk to your vet before turning out a laminitis-prone or equine metabolic syndrome horse onto pasture. Some metabolic horses need tight grass limits. Others need zero grass during an active flare-up.
Metabolic horses need an especially careful transition to any new pasture routine. Build up their strip grazing time slowly over several days rather than all at once. Take it easy, ease into the system, and give your horse time to settle into the new routine.
The Back Fence
Use a two-fence system to protect your pasture. Run a front fence and a back fence with your horse grazing the strip between them. Move both wires forward together so the eaten grass behind gets a chance to rest and regrow while your total grazing area stays the same.
Research shows that ponies lose weight just as well with or without a back fence. If managing two lines feels like too much work, a single front wire will still control your horse's grass intake. The real benefit of a back fence goes to the field. Resting the chewed-down sod lets the grass bounce back stronger over the grazing season.
How Big Should Your Strip Grazing Paddock Be?
The right strip size depends on your horse, your grass, and your weight goals. Research offers a helpful starting point, with scientific trials sizing paddocks to provide about one and a half percent of a pony's body weight in dry matter daily.
You won't weigh grass in the real world. Instead, manage your strip by eye and track your results. Give your horse just enough space so the strip is fully grazed down before you move the electric fence, and check your horse's condition every week.
If weight comes off too fast or not at all, tweak the size of your daily move. Always start smaller than you think you need, because widening a strip is much easier than fixing weeks of overeating.
Setting Up Your Strip
The kit list is short, and if you already run any electric fencing, you will likely have half of it on hand.
1. High-Visibility Fencing
Use wide, visible fencing rather than thin steel wire. This matters even more with strip grazing than a fixed fence, because you are putting a line where your horse does not expect one, and horses have poor depth perception. A horse trotting back toward the gate needs to spot that fence from a distance.
For horses, use polytape or rope. The My Animal Command MAC500MPT 1-inch Polytape works best for this job. It features a highly visible white background with red and blue stripes, UV treatment, nine conductive strands, and a 330 lb breaking strain on a 1,640 ft drum. This wide ribbon gives your horse a clear boundary to see and respect.
If you graze a mixed herd or need a budget option for daily interior strips, polywire is a good alternative. A 1/8" thick polywire features nine stainless steel strands at low resistance on a long drum, featuring high-visibility colors and a strong breaking strain. It reels up fast and moves easily, but wider tape is safer and easier for horses to spot.
2.Electric Fence Posts and Geared Reels
Set up plastic or fiberglass step-in posts twenty to twenty-five feet apart. Step them into the dirt with your boot and pull them out by hand. Use a geared reel to keep your electric fence tape tidy. A geared reel turns a frustrating twenty-minute tangle into a quick two-minute chore. This setup makes moving your strip grazing fence easy when you shift your lines all season long.
3. Portable Solar Energizer
The My Animal Command Portable Solar Powered Energizer Charger (MAC3ML) delivers 0.25 joules at 9,000 to 11,000 volts, comfortably above the 3,000 volts a horse needs to respect the line. Its internal lithium battery holds up to 15 days of charge with no sun at all, so a grey week will not leave your fence dead. All units ship with the earthing rod, cable connectors, and a wall adapter in the box.
Technical Pro-Tips for Strip Grazing Electric Fences
Test your electric fence voltage after every single fence move instead of guessing. Use a proper fence tester to check the line power.
Match your grounding system correctly. Use roughly three feet of ground rod per joule of energizer output. A strip grazing fence with a weak earth connection delivers only a feeble shock. If a hungry pony discovers your pasture fence has lost its bite, it will break through before teatime.
Managing the Rest of the Field
Strip grazing gives you a chance to look after the whole pasture, not just the strip. While a section rests behind the back fence, that ground recovers best if you help it along:
- Harrowing: Breaks up manure piles, spreads droppings, and reduces the worm burden.
- Topping or Mowing: Mowing the grazed and ungrazed patches to an even height keeps the more palatable grasses from being shaded out by the ones your horse ignored.
Aim to let a rested section recover properly before it comes back into the rotation. A field managed this way comes back thicker and more even, which is a quiet bonus on top of the weight control.
Managing the Strip Through the Year
- Spring: Spring is the trickiest time of year for managing pasture weight. The spring grass flush grows rapidly and carries high sugar levels. Because of this, a simple strip fence may not restrict a laminitis-prone horse enough on its own. Many owners combine strip grazing with an equine grazing muzzle for part of the day or take horses off pasture entirely during peak growth. If your horse has a history of equine metabolic syndrome, consult your veterinarian to build a safe turnout plan. Turnout timing also helps control sugar intake because pasture sugars are lowest overnight and early in the morning before sunlight increases photosynthesis.
- Summer: Once the spring rush passes, strip grazing comes into its own, matching the window tested in the research. The strip meters out grazing of naturally declining quality, and you can adjust the moves to hold or reduce weight.
- Autumn: Autumn brings a second grass flush that catches many horse owners off guard. Most people only worry about laminitis in the spring, so keep your strip grazing discipline strict through the fall months.
- Winter: Winter stops grass growth completely. Your electric fence becomes less about restricting calories and more about rationing the remaining pasture, so your forage lasts through the cold season.
Keep an eye on the muck heap through all of this. A sudden increase in droppings is often the first clue that the strip has grown too generous and more grass is going in than you realized.
Common Mistakes to Avoid
- A Strip That Is Too Generous: If the grass never gets properly grazed down before you move the fence, nothing is being restricted. The ground should look genuinely eaten before fresh grazing opens up.
- Rushing Introduction: Turning out an untrained horse onto electric fencing without prior introduction can lead to crashes or broken equipment. Let any horse new to electric fencing meet a hot line inside a secure area first.
- Isolating Herd Animals: Don't maroon a horse all by itself on a tight strip just because you're trying to manage its waistline; isolation causes real stress, leading to fence-pacing and fretting. Make sure it has a buddy right over the fence where it can still socialize, and remember that doubling up your herd means you'll need to open up bigger daily bites of grass.
- Neglecting the Charge: Check your fence power every time you move the line. Moving the fence often causes a poor ground connection or a loose strand. Spend thirty seconds testing the voltage with a meter before you walk away. Keep your tape pulled tight so it does not sag or blow in the wind.
- Forgetting Infrastructure: Map out your water troughs and run-in sheds before you shove your very first step-in post into the dirt. Your strip needs to provide easy access to water and shade no matter where the fence happens to creep across the paddock over the course of the season.
FAQ's: Strip Grazing for Horses and Ponies: A Weight-Management Guide That Works
Can strip grazing help an overweight horse lose weight?
Yes, and equine research proves it works. Studies led by Dr Annette Longland showed that ponies with full paddock turnout gained three to four times more weight in a single month than ponies managed on a strip grazing system. Restricting pasture access stops horses from bingeing on high sugar grass all at once, which keeps daily calories under control and helps manage equine metabolic health.
Is strip grazing enough on its own for a laminitic pony?
Not always, especially in spring when grass sugars are high. Treat it as one tool among several, often combined with a grazing muzzle or reduced turnout, and always plan a laminitis-prone horse's grazing with your vet. During an active laminitis flare-up, some horses should have no pasture at all.
How often should I move the fence?
Let the pasture guide you. Once the strip is grazed down, it is time to shift the line. During peak spring growth, that usually means moving it daily in smaller bites. When growth slows down later in the season, you might stretch it to every two or three days with a larger section. Just adjust the size of the daily or weekly slice depending on whether you are trying to keep your horse's weight steady or take a few pounds off.
Do I need a back fence?
Not strictly for weight loss. Studies show ponies drop pounds just as effectively with or without one, meaning a single front wire does the job of controlling how much they eat. A back fence is really there to protect your grass, locking off the chewed-down sections so the pasture can actually recover and grow back stronger over the season.
Can I strip graze more than one horse at a time?
Yes, and companionship is good for them, but plan for it. More horses means more grass eaten, so you will need to release a larger strip or move the fence more often, and you will want the strip wide enough that they can graze and move past each other comfortably.
Will one energizer run the strip and my other fencing?
Usually, a strip is a short run, well within a 0.25-joule unit's capacity. If the same energizer feeds other paddocks, add up the total tape across everything connected and size your unit accordingly.
Final Thoughts
Keep a close eye on your horse and your pasture rather than just following a calendar. Is the grass in the current strip grazed right down? Move your electric fence forward. Is there still plenty of forage left?
Hold your ground for another day. Track your horse's body condition score weekly to decide whether to open up more space or tighten your limits. Test your line voltage after every single shift, keep your fence tight so it stays visible, and use a back fence if you want to give resting grass a chance to recover.
All you really need is a geared reel, some step-in posts, a roll of high-visibility polywire like the Polywire from My Animal Command, and the My Animal Command portable solar energizer. That simple strip grazing setup gets your horse or pony through high-risk seasons sounder, and at a much lower risk of laminitis, while improving equine weight management and leaving your pastures in good shape.
