PORTA-GRAZER by Grazing Feeders, Inc

PORTA-GRAZER by Grazing Feeders, Inc. PORTA-GRAZER ™ Second Only

Searching for the right pasture feeders for your facility?

Reviewed by Ann Pruitt, InfoHorse.com · Updated April 2026

XL Porta-Grazer two-piece slow hay feeder barrel and grazing pan set

PORTA-GRAZER by Grazing Feeders, Inc.
PORTA-GRAZER™ Second Only To Nature- Approved by Equine Veterinarians and Dentists!
Provides head down grazing- when pasture is not an option!

2nd Only to Grazing!
See for yourself why PORTA-GRAZER™ is used all over the world by well-known clinicians, trainers, veterinarians, and everyday horse people. PORTA-GRAZER™ provides grazing when pasture is not an option! It is a system that simulates natural grazing by allowing your horse to eat hay or pellets at a naturally slower pace. It replaces the usual feast and famine system of being fed twice a day and eating too quickly. This durable feeder aids your horse’s digestion by allowing your horse to eat the way nature intended, slowly throughout the day. Celebrating over 14 years of business-- World Wide!

Is It True That Disney World and Disney Land Use Porta-Grazer™ For Their Horses?

Yes! The Happiest Place on Earth- Disney World and Disneyland use Porta-Grazers™ for their horses. In addition, many mounted police departments use Porta-Grazers for their police horses. Clinicians, trainers, race tracks, and every day horse people have found that Porta-Grazer is an asset to their horses lives as well as convenient and a money saver.
Portable and easy to take with you so your horse stays on the same feed routine no matter where they are.

How Does The PORTA-GRAZER Work?

Hay is placed in the feeder. Then the feed pan is placed on top of the hay. This pan has a special arrangement of holes sized according to the horse’s size and type of feed to be consumed. The feed is pulled through the holes and torn off as it is being consumed, simulating natural grazing. As the feed is being pulled through the holes, sand and dirt are removed collecting out of reach in the bottom of the feeder to be discarded later. Each bite is eaten as it is pulled through the holes not allowing the feed to be picked through or dropped to the floor where parasites and sand may be ingested.

The patented rotating pan lifts and holds the bits of hay up to the horse. So, they can size and tear their bite same as if in pasture. The horse is not forced to eat down thru little holes. The pan rests on top of the hay and goes down as the hay is consumed. The tab locking system keeps the hay in the feeder even when rolled around. No hardware to endanger your horse. To take the pan in or out you simply line up the key hole with the arrow on the handle. The feeder can also be secured by one handle if you don’t want your horse playing with it.

So, How Does Porta-Grazer™ Help?
By putting low calorie forage in the Porta-Grazer™ your horse is able to graze in a more natural head down position that allows the jaw to slide into position for proper chewing. The rotating pan lifts the hay up thru the holes and holds it so the horse is able to size and tear each bite same as if in pasture while providing more chewing time which produces more saliva that buffers the stomach acid. Once the horse is self-regulated it will eat what it needs to buffer the acid and walk away, to come back again later when it needs to buffer the acid again. Horses naturally graze 18-20 hours a day...
Using a Porta-Grazer also prevents wasted hay, and keeps the hay off the ground and out of the mud, sand, dirt, snow etc.

Porta-Grazer™ Both Discourages & Helps Many Digestive Ailments  
Thus providing a way for horses to graze when pasture is not an option. Can be used anywhere-inside,outside, at home or on the go. Horses that eat regularly with their Porta-Grazer™ are often much healthier! Porta-Grazer™ was designed to help horses eat better, with small meals continuously, to keep a healthier gut, head position and improved digestion.

Sand Colic
Impaction Colic
Ulcers
Laminitis
Founder 
Parasites
Weight Control
Insulin Resistance
Copd 
TMJ
Choke
Bad Stall Habits,  such as chewing wood, kicking walls, cribbing, weaving 
Helps with Back, Hock, Neck issues
Allows Dunking/Soaking ...and more!

How Porta-Grazer™ Can Discouraget and Even Help Heal Ulcers
Don’t let ulcers keep your horse from performing their best-- just do what it takes to help heal them! Horses need access to forage 24/7 to keep their stomach acid buffered to prevent ulcers.

So How Do We Feed Our Horses 24/7 Without The Horse Becoming Fat?

Easy! Use a low calorie grass hay, such as Timothy, Teff or Bermuda. It’s the calories IN the hay that needs regulated not the volume of hay. In order to give your horse, the ability to keep that acid in check it needs a continuous supply of low calorie forage at all times.

►Another option is using straw. Oat, wheat or barley straw. You can mix the straw in with your hay in the Porta-Grazer to add more volume without adding much in the way of calories.

Porta-Grazer™ Helps Discourage Sand Colic
How using a Porta-Grazer™ can prevent sand colic: Hay is pulled through the holes and torn off. The dust, sand and dirt are shaken loose and work its way to the bottom of the barrel. There it is collected in a trough out of the horses reach to be discarded later. Little to no feed is dropped to the ground to be contaminated with foreign materials and ingested.
When feeding on the ground sand and dirt particles can be ingested. Horses do not eat naturally off of the ground, they eat the tops of plants that grow from the ground.

Porta-Grazer™ Eliminates Hay Waste! The $avings Are Notable!
The unique patented design eliminates hay waste by not allowing hay to be picked through or spread to the ground and wasted. The tab locking system keeps the pan in the barrel even when rolled around. The hay stays in the feeder instead of being spread all over the ground. The pan also prevents the horse from searching thru the hay to get the sugar first. Only being able to eat what pops up thru the holes. The pan is designed to lift and hold the bits of hay up to the horse so they can size and tear off each bite same as if in pasture.

What If I Need To Soak My Hay?
Soaking has never been easier and you stay dry! Load dry hay as per directions, place pan in, fill with water. When done soaking simply remove the drain plug to drain the water out. Then give to the horse.
Note: Plug should always be removed when the feeder is in use.

What About When I Am On The Road?

PORTA-GRAZER™ Traveler reduces travel stress for you and your horse by not interrupting your horses feeding regiment while away from home. Just grab it from the stall, fill it with feed, pop on the lid and go. When the lid is removed it then becomes a water trough to hold several gallons of clean water!

What Do Customers Say About The PORTA-GRAZER™?

We’ve only had our grazers about 2 weeks. Our vet suggested them because our horses were getting colic and sand impaction. Our horses are calmer and happier, it seems like it happened overnight. No fighting, no colic, no waste, no sand. These are the best!Karen Plomondon Small

This has saved my horse from browsing on sand. He would wolf down his feeding and be so bored, now he’s occupied, happy and healthier.Marilyn Waidelich

The PORTA-Grazers work great! They took to them right away spending most of their time eating, not wasting hay and messing their stalls. My stall cleaning time has gone from about 45 minutes to just a few minutes a day. Great product. Thanks. Deb Renger, Five time Canadian Champion Barrel Racer

Couldn’t be more pleased with our three feeders. We have a senior horse, who needed the bigger holes, with our other two quarter horses using the regular feeder. This is the Best investment we ever made. You save so much money…there is no more wasted hay that has blown away or been messed on. We test our boys fecal every six months and there has not been sand in it for over a year. Our youngest gets bored really easy, so he loves to play with his. These things Hold up!!! So, I wouldn’t call them “Expensive”, but rather a “Money Saver”. You save money on feed, Sand Clear, and vet bills. Sounds like a win-win to me! Thank you, for delivering an Awesome and Quality product!!! Feeling blessed!!
Lynette Owning
Order Your PORTA-GRAZER™ Today!
The Healthy benefits when using a Porta-Grazer™ helps save you money. No more wasted hay, healthy content horses, less time spent cleaning stalls, allows the horse to eat in a more natural head down position while keeping the back, neck and hock aligned. The Porta-Grazer™ is a solution that you and your horse will love! The savings on hay that was previously scattered and soiled, the slow feeding advantages that help keep your horse's digestive system, make it all worth while. Be Sure to Order Today!

What makes the PORTA-GRAZER different from a hay net?

The PORTA-GRAZER™ is a patented slow-feeder system (PAT. 10,149,455 B2) that lets a stalled or confined horse graze head-down at a natural, slower pace, just as it would on pasture. A grazing pan locks into a barrel over the hay; the horse pulls forage up through the holes a few bites at a time, so the contents are never picked through, flung on the ground, or contaminated with sand or parasites. Unlike hay nets, there are no knots to tie, no teeth to catch, and reloading "Takes Just Seconds TO Load."

XL Porta-Grazer with grazing pan loaded for head-down slow feeding

Who makes the PORTA-GRAZER?

The PORTA-GRAZER is invented and made in the USA by Grazing Feeders, Inc., a family operation celebrating over 16 years in business. You can reach the company directly at (208) 315-0373 or, with order and support hours of Mon - Fri: 8:00 AM - 3:30 PM (MST). The feeder is used worldwide by clinicians, trainers, veterinarians, and everyday horse people, with official dealers in Australia and Switzerland.

XL Porta-Grazer slow feeder front view food-grade polyethylene barrel

What is the PORTA-GRAZER built from?

Each unit is molded from rugged food-grade (not recycled) polyethylene plastic that is UV protected and rated to 30 degrees below zero, so it holds up to barn, paddock, and trailer life year after year. A 3/4" threaded drain plug makes it easy to rinse out or to soak hay for horses that need dust-free or lower-sugar forage. The construction is so durable that many units in the field are still in daily service after more than ten years.

XXL Corner Porta-Grazer free-standing slow hay feeder with 8-hole pan

Which model and hole size fits your horse?

The XL Porta-Grazer ($319.00) is a 2-piece set measuring 22" x 22" x 25" tall, holding roughly 3 average flakes for twice-a-day feeding, while the XXL Corner Grazer ($379.00) holds up to 6 flakes and lasts most horses a full 24 hours. A Mini Porta-Grazer™ ($299.00) suits miniatures and there is even a Goat & Sheep Feeder ($299.00). You choose the pan hole size at checkout: MXP-10 for pellets only, MXP-8 for fine grass hay, or MXP-6 for alfalfa, timothy, teff, coarse hay, soaked hay, and draft horses.

How does slow feeding protect equine health?

By stretching forage out over hours and keeping the head down, the PORTA-GRAZER mimics the trickle-feeding that horses evolved to do and helps guard against ulcers, colic, laminitis, and other digestive problems tied to gulped meals and empty stomachs. The slower pace supports weight control and metabolic management, while the steady "busy" of grazing reduces cribbing and other bad stall habits. The system is approved by equine veterinarians and dentists and has been used by Texas Tech University School of Veterinary Medicine.

How do you order a PORTA-GRAZER?

Single feeders and money-saving combo specials ship directly from porta-grazer.com, including the XL Combo Special ($608.00) and XXL Corner Feeder Special ($718.00), plus Traveler sets with a roughly 9-gallon water trough/lid for hauling and shows. Budget-minded owners can choose the Porta-Grazer DIY kit ($249.00) to build their own and save. Replacement pans and lids are also sold separately, so a feeder can be kept in service for years.

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The Solution Section (FAQ)

What is the PORTA-GRAZER™ and how does it work?

The PORTA-GRAZER™ by Grazing Feeders, Inc. is a slow-feed system that simulates natural grazing when pasture is not an option. Hay is placed in the feeder and a feed pan with a special arrangement of holes rests on top; the horse pulls and tears off each bite as it pops up through the holes, eating at a naturally slower pace instead of the usual feast-and-famine of being fed twice a day.

Does my horse have to eat down through little holes?

No. The patented rotating pan lifts and holds the bits of hay up to the horse, so it can size and tear each bite the same as if it were grazing in pasture. The pan rests on top of the hay and lowers as the hay is consumed, rather than forcing the horse to reach down through the holes.

How does the PORTA-GRAZER™ help with sand colic?

As hay is pulled through the holes and torn off, dust, sand and dirt are shaken loose and collect in a trough at the bottom of the barrel, out of the horse's reach, to be discarded later. Because little to no feed drops to the ground, the horse isn't ingesting sand and dirt the way it can when feeding off the floor.

What digestive and behavioral problems can a PORTA-GRAZER™ help with?

The PORTA-GRAZER™ is designed to support small, continuous meals for a healthier gut, better head position, and improved digestion. The company notes it both discourages and helps with many ailments, including sand colic, impaction colic, ulcers, laminitis, founder, parasites, weight control, insulin resistance, COPD, TMJ, and choke, as well as bad stall habits like wood chewing, wall kicking, cribbing, and weaving.

How do I feed forage longer without my horse getting fat?

The company advises using a low-calorie grass hay such as Timothy, Teff or Bermuda, since it's the calories in the hay that need to be regulated, not the volume. You can also mix in oat, wheat or barley straw to add more volume in the Porta-Grazer™ without adding many calories, giving the horse continuous forage to keep stomach acid buffered.

Can I soak my hay in the PORTA-GRAZER™?

Yes. Load dry hay per the directions, place the pan in, and fill with water; when soaking is done, simply pull the drain plug to drain the water before giving it to the horse. Note that the plug should always be removed when the feeder is in use.

Is there a version for hauling and travel?

Yes. The PORTA-GRAZER™ TRAVELER is made to reduce travel stress by keeping your horse on the same feeding routine away from home. Grab it from the stall, fill it with feed, pop on the lid and go; when the lid is removed it becomes a water trough that holds several gallons of clean water.

How do I order a PORTA-GRAZER™ or get the right hole size for my horse?

The feed pan's holes are sized according to the horse's size and the type of feed being consumed, so it's worth confirming the right fit before ordering. You can reach the friendly staff at Grazing Feeders, Inc. by phone at 208-315-0373 or visit https://porta-grazer.com to order and learn more.

What is the PORTA-GRAZER?

The PORTA-GRAZER™ is a patented slow hay feeder for horses and other equines, made by Grazing Feeders, Inc. It uses a barrel and a locking grazing pan so a horse must pull hay up through holes a few bites at a time, recreating natural head-down pasture grazing for stalled or confined horses. The company markets it as 'Second Only To NATURE.'

How does the PORTA-GRAZER actually work?

You stand hay flakes against the inside wall of the barrel, fold them into an arch at the bottom, then drop the grazing pan in over the hay and rotate it to lock with the patented interlocking tab system. The horse then noses the forage up through the pan holes, eating slowly with its head down. The pan keeps hay from being picked through, dropped, or contaminated with sand and parasites.

Why is slow feeding better for my horse?

Horses evolved to trickle-feed for most of the day, and long gaps between meals plus fast gulping are linked to ulcers, colic, and digestive upset. By stretching forage over hours, the PORTA-GRAZER keeps the stomach buffered and the digestive system working as nature intended. The maker reports it can help with ulcers, colic, laminitis, and other digestive ailments, and it is approved by equine veterinarians and dentists.

What sizes and models does the PORTA-GRAZER come in?

The main lineup includes the XL Porta-Grazer ($319.00) holding about 3 flakes for twice-a-day feeding, the XXL Corner Grazer ($379.00) holding up to 6 flakes for 24-hour feeding, and the Mini Porta-Grazer™ ($299.00) for miniatures. There is also a Goat & Sheep Feeder ($299.00), Traveler sets with a water trough, and a Porta-Grazer DIY kit. Combo specials bundle a feeder with accessories at a discount.

How much does a PORTA-GRAZER cost?

Individual feeders start around the Mini Porta-Grazer™ at $299.00, with the XL Porta-Grazer at $319.00 and the XXL Corner Grazer at $379.00. The budget Porta-Grazer DIY kit is $249.00, and bundled combo specials run from the Mini Combo Special at $578.00 up to the XXL Corner Feeder Special at $718.00. Replacement pans and lids are sold separately, with the Mini & XL Feed Pan (Tabs) at $99.00.

What is the PORTA-GRAZER made of?

It is molded from rugged food-grade (not recycled) polyethylene plastic that is UV protected and rated to 30 degrees below zero. This makes it safe for forage contact and tough enough for stalls, paddocks, and trailers in any climate. Many units are reported to still be in daily use after more than ten years.

How big and heavy is the XL Porta-Grazer?

The XL Porta-Grazer measures 22" x 22" x 25" tall and weighs roughly 20 lbs empty. It holds approximately 3 average-sized hay flakes (about 5,655 cubic inches of capacity), making it a practical twice-a-day feeder filled morning and night. The two-piece set includes the barrel and one grazing pan.

What do the MXP-10, MXP-8, and MXP-6 pan options mean?

These are the three hole-size choices you select at checkout to match your horse and forage. MXP-10 is for pellets only, MXP-8 is for fine grass hay, and MXP-6 is for alfalfa, timothy, teff, coarse hay, soaked hay, and draft horses. Choosing the right hole size controls how quickly your horse can pull the forage.

Can I soak hay in the PORTA-GRAZER?

Yes. Each feeder includes a 3/4" threaded drain plug, so you can fill it with water to soak hay for horses needing dust-free forage or lower water-soluble sugar, then unplug it to drain. The company also offers dedicated XL Porta-Grazer™ Soaker / Rinser models for owners who soak regularly. The drain plug doubles as an easy way to rinse the unit clean.

Is the PORTA-GRAZER good for horses with metabolic issues or that need to lose weight?

Yes, slowing intake is one of its core benefits. By extending how long it takes to finish a ration, the feeder supports weight control and metabolic management without leaving the horse with an empty stomach for long stretches. Pairing it with the MXP-6 pan and soaked hay further reduces how fast forage is consumed.

Does the PORTA-GRAZER help with cribbing and stall vices?

The maker reports that keeping a horse busy grazing throughout the day reduces cribbing and other bad stall habits. Because the horse spends far more time working at its hay rather than bolting it, boredom-driven behaviors tend to decrease. Trainer Steve Lantvit Horsemanship has said the results he sees with the Porta-Grazer at his facility are 'amazing.'

Who makes the PORTA-GRAZER and where is it made?

It is invented and made in the USA by Grazing Feeders, Inc., a company celebrating over 16 years in business. The product is patented under PAT. 10,149,455 B2. You can contact them at (208) 315-0373 or [email protected] during hours of Mon - Fri: 8:00 AM - 3:30 PM (MST).

How do I order a PORTA-GRAZER?

Feeders, combo specials, Traveler sets, and replacement parts ship directly from porta-grazer.com, or you can call (208) 315-0373 to order by phone. Select your model and pan hole size at checkout. International buyers can use authorized dealers in Australia and Switzerland.

What is the Porta-Grazer DIY kit?

The Porta-Grazer DIY ($249.00) is a build-your-own option that lets cost-conscious owners assemble their own feeder and save money compared with a fully finished unit. It delivers the same head-down grazing concept at a lower entry price. It is a good route for owners comfortable supplying their own barrel.

What is the Porta-Grazer Traveler set?

The Traveler sets are made for the road and shows, pairing a feeder with a lid that doubles as a water trough holding approximately 9 gallons. The XL Porta-Grazer™ Traveler is $359.00 and the Mini Porta-Grazer™ Traveler is $339.00. This lets you keep a horse grazing and watered while hauling, at the trailer, or at an event.

Has the PORTA-GRAZER been validated by professionals?

Yes. It is approved by equine veterinarians and dentists and has been used by the Texas Tech University School of Veterinary Medicine. It is also relied on by well-known clinicians, trainers, racing and endurance operations, zoos and sanctuaries, the Houston Police Department mounted unit, and everyday horse owners worldwide. Customer reviews credit it with resolving recurring post-meal colic.

How long will a PORTA-GRAZER last?

Because it is built from UV-protected, cold-rated food-grade polyethylene, the feeder is designed for years of hard use, and the company notes many units are still functioning after more than ten years. There is no assembly required and nothing to wear out the way hay nets do. Should a pan or lid eventually need replacing, those parts can be purchased individually rather than buying a whole new unit.