Best Hay Feeders for Horses: How To Reduce Waste Without Limiting Intake

By Dr Duncan Houston

Hay is often the biggest cost in feeding horses, so watching good forage get trampled into mud, mixed with manure, or blown across the paddock is enough to make any owner quietly question their life choices.

Hay feeders can make a real difference. They can reduce waste, keep hay cleaner, slow intake, and save money. But the best hay feeder is not simply the one with the lowest waste percentage. The right feeder depends on the horse’s body condition, dental health, herd dynamics, respiratory health, feeding schedule, and whether the goal is weight gain, weight maintenance, or weight control.

The important clinical point is this: a feeder that saves hay but stops the horse eating enough is not a good feeder for that horse.

Quick Answer

Hay feeders can reduce waste significantly, but the best design depends on the horse. In a University of Minnesota study using small square bales, hay waste was 13% with no feeder, 5% with a hayrack, 3% with a basket feeder, and 1% with a slat feeder. However, horses using basket and hayrack feeders had higher hay intake and gained small amounts of weight, while horses using the slat feeder and no feeder lost small amounts of weight. (University of Minnesota Extension)

For most horses, the best hay feeder is one that reduces trampling and soiling while still allowing enough forage intake. Horses generally need about 1.5 to 2% of body weight in forage per day on a dry matter basis, so any feeder that reduces intake too much can create weight loss, frustration, or digestive risk. (Merck Veterinary Manual)

Why Hay Feeders Matter

Hay waste is not just a money problem. It can become a nutrition, hygiene, and management problem.

When hay is fed directly onto dirt, mud, sand, or a busy paddock surface, horses can:

• Trample it

• Urinate or defecate on it

• Drag it through mud

• Blow it around in windy weather

• Refuse contaminated portions

• Ingest dirt or sand

• Eat less than expected

• Compete more aggressively around feed

Feeders help by creating a physical barrier between the horse and the forage. University of Minnesota noted that all feeder types in their small square-bale study reduced hay waste compared with ground feeding because they helped contain the hay and limit waste from trampling and soiling. (University of Minnesota Extension)

That is the benefit. The catch is that every feeder also changes how the horse eats. Some make hay easy to access. Some slow intake. Some restrict intake too much. Some work well for one horse and badly for another.

What the University of Minnesota Study Found

The University of Minnesota compared three small square-bale feeders with a no-feeder control. The study used 12 adult horses divided into four groups, with grass hay fed at 2.5% of herd body weight, split into two daily feedings. Waste hay and leftover hay inside the feeders were measured before each feeding. (University of Minnesota Extension)

The results were very useful for owners:

Feeding Method	Hay Waste	Estimated Hay Intake	Herd Body Weight Change
Basket feeder	3%	2.4% body weight	+22 lb
Hayrack feeder	5%	2.4% body weight	+15 lb
Slat feeder	1%	2.2% body weight	-7 lb
No feeder	13%	2.2% body weight	-24 lb

The slat feeder wasted the least hay, but it also created the greatest barrier to eating. The basket and hayrack feeders had higher intake, and horses using those feeders gained small amounts of weight. Horses using the slat feeder and the no-feeder control lost small amounts of weight. (University of Minnesota Extension)

That is the whole lesson in one table: efficiency is not the same as suitability.

Which Hay Feeder Is Best?

There is no single best feeder for every horse.

Basket Feeders

Basket feeders performed well in the University of Minnesota trial, with low waste and good intake. They can be a strong option for horses that need to maintain weight or gain weight, while still reducing hay loss. (University of Minnesota Extension)

Best for:

• Horses in normal body condition

• Hard keepers that still need good access

• Herds where hay waste is high

• Horses that need cleaner hay without major restriction

• Owners wanting lower waste without dramatic intake reduction

Watch for:

• Sharp edges

• Poor drainage

• Trapped old hay

• Dominant horses controlling access

• Mud building around the feeder

Hayrack Feeders

Hayracks also reduced waste and supported higher intake in the study. They may suit horses that need steady access and are not meant to have intake heavily restricted. (University of Minnesota Extension)

Best for:

• Horses that need normal forage access

• Horses that lose weight easily

• Paddocks where hay is being trampled

• Owners wanting a simple, familiar feeder style

Watch for:

• Hay being pulled out and wasted

• Dust falling into the breathing zone if hay is fed too high

• Safety gaps where legs, halters, or shoes could catch

• Feeders being mounted too high or in awkward positions

For horses with respiratory disease or dusty hay, avoid setups that force the horse to eat with its head high and nose pushed into hay. Dust exposure is a real issue in equine respiratory disease, and feeder design can affect the horse’s breathing zone.

Slat Feeders

Slat feeders wasted the least hay in the University of Minnesota trial, but they also restricted intake more than basket and hayrack feeders. That may be useful for some horses, but not all. (University of Minnesota Extension)

Best for:

• Easy keepers

• Overweight horses

• Horses needing slower intake

• Horses wasting a lot of hay

• Situations where controlled access is the goal

Be careful with:

• Thin horses

• Senior horses

• Horses with poor teeth

• Lactating mares

• Growing horses

• Horses in heavy work

• Anxious or frustrated horses

• Herds where timid horses already struggle to access feed

The slat feeder is the “very efficient accountant” of hay feeders. Excellent with numbers, but not always warm and generous.

Slow-Feed Hay Nets

Slow-feed hay nets can help reduce waste and extend eating time, especially for horses that eat quickly or need weight control. They can also help mimic longer forage intake periods.

Best for:

• Easy keepers

• Horses that bolt hay

• Horses needing longer eating time

• Stabled horses with boredom around feeding

• Horses needing controlled calorie intake

Watch for:

• Hoof or shoe entanglement

• Nets hung too low

• Nets hung too high

• Frustration

• Rubbing of lips or gums

• Poor intake in horses with dental disease

• Tiny holes that make eating too difficult

A slow feeder should slow intake, not turn dinner into an escape room.

Ground-Level Feeders or Hay Tubs

Ground-level feeders, tubs, boxes, and low hay systems can reduce waste while allowing a more natural head-down eating position. They are often useful when you want to avoid hay being trampled but do not want the horse eating from a high rack.

Best for:

• Horses with respiratory sensitivity

• Horses that need a more natural eating posture

• Senior horses

• Horses that dislike nets

• Stables or dry lots with clean surfaces

Watch for:

• Sand or dirt contamination

• Mud accumulation

• Feeders being tipped over

• Dominant horses guarding the feeder

• Hay becoming wet and mouldy

Feeding Hay on the Ground: Is It Always Bad?

No. Feeding hay at ground level can be natural for the horse’s posture, and in a clean, dry environment it can be acceptable.

The problem is not “ground level.” The problem is dirty ground, mud, sand, manure, urine, wind, and trampling.

Feeding hay directly onto a clean rubber mat in a stable is very different from throwing hay into a muddy paddock. Feeding small, spread-out piles on clean pasture is different from dumping a whole bale into a high-traffic gateway.

A better rule is:

Feed hay as close to a natural position as practical, but keep it clean, dry, contained, and safe.

How Much Hay Should a Horse Eat?

Before choosing a feeder, you need to know how much forage the horse should actually consume.

Merck Veterinary Manual recommends that horses receive about 1.5 to 2% of body weight in forage per day on a dry matter basis. University of Minnesota also notes that most horses should consume about 2% of body weight in hay daily, although the exact amount depends on the horse’s needs and hay quality. (Merck Veterinary Manual)

For a 500 kg horse, that is roughly:

• 7.5 kg forage dry matter per day at 1.5%

• 10 kg forage dry matter per day at 2%

For a 1,000 lb horse, that is roughly:

• 15 lb forage dry matter per day at 1.5%

• 20 lb forage dry matter per day at 2%

If your feeder reduces waste but your horse is losing weight, the feeder may be too restrictive, the hay may be poor quality, the horse may not be getting enough time to eat, or another medical issue may be present.

The Real Cost of Hay Waste

Hay waste adds up quickly.

If a horse is fed 30 lb of hay per day and 13% is wasted, that is about 3.9 lb wasted daily. Over a year, that is more than 1,400 lb of hay lost for one horse.

If hay costs:

• $250 per ton, that is about $178 per year in waste

• $500 per ton, that is about $356 per year in waste

• $800 per ton, that is about $569 per year in waste

And that is for one horse. Multiply that by a herd, and suddenly the feeder starts looking less like an optional purchase and more like a hay-saving staff member that never asks for weekends off.

The University of Minnesota study calculated that the small square-bale feeders paid for themselves in about 9 to 12 months, depending on feeder type and hay value. (University of Minnesota Extension)

Round Bale Feeders: A Bigger Waste Problem

Round bales can be convenient, but waste can be much higher when they are fed without a feeder.

In University of Minnesota round-bale feeder research, waste varied widely by feeder design. A no-feeder control wasted 57%, while some feeder designs reduced waste dramatically, with the lowest-waste designs around 5 to 11%. (lpelc.org)

This matters because round bales are often fed outdoors, where mud, rain, manure, and trampling make waste worse.

If using round bales, consider:

• A feeder that reduces trampling

• A covered or well-drained feeding area

• Enough access points for the number of horses

• Removing old wet hay

• Monitoring for mould

• Keeping the bale away from mud and manure

• Avoiding deep holes where horses bury their noses into dusty hay

Round bales can be brilliant. They can also become a mouldy buffet in a mud pit if managed badly.

How To Choose the Right Hay Feeder

If Your Horse Is Thin or Losing Weight

Choose a feeder that reduces waste without making access too difficult.

Better options may include:

• Basket feeder

• Hayrack with safe design

• Ground-level hay tub

• Low, open feeder

• Larger-hole slow feeder if needed

Avoid overly restrictive feeders unless there is a clear reason.

A thin horse needs enough forage first. Do not celebrate low hay waste if the horse is quietly losing condition.

If Your Horse Is Overweight or an Easy Keeper

Choose a feeder that slows intake while still allowing adequate forage and normal behaviour.

Options may include:

• Slat feeder

• Slow-feed net

• Slow-feed box

• Multiple small hay portions

• Track system feeding

• Tested lower-energy hay

Monitor body condition, manure, mood, and total intake. Weight control should be steady, not starvation dressed up as “management.”

If Your Horse Has Dental Problems

Use a feeder that is easy to access.

Avoid:

• Tiny-hole nets

• Very restrictive slats

• Feeders that require strong pulling

• Designs that make the horse frustrated or unable to chew enough

Senior horses, horses with missing teeth, and horses quidding hay may need chopped forage, soaked hay cubes, hay pellets, or a senior ration rather than just a different feeder.

If Your Horse Has Respiratory Issues

Use clean, low-dust forage and avoid feeders that increase dust exposure.

Consider:

• Low feeders

• Ground-level systems on clean mats

• Steamed or soaked hay where appropriate

• Avoiding dusty round-bale holes

• Better ventilation

• Removing mouldy or dusty hay completely

The feeder is only part of the respiratory plan. Bad hay in a fancy feeder is still bad hay.

If You Feed a Herd

Herd feeding is where feeder design becomes a social problem.

Use:

• Multiple feeders

• More feeding spaces than horses

• Wide spacing between feeders

• Separate feeding for bullied horses

• Separate feeding for thin, senior, or young horses

• Careful observation during feeding

One dominant horse can turn the world’s best feeder into a private dining room.

Severity and Risk Framework

Risk Level	What It Looks Like	What It Likely Means	What To Do
Low risk	Horse is maintaining weight, hay is mostly eaten, waste is low, no fighting	Feeder is likely working well	Keep monitoring weight, manure, and feeder safety
Medium risk	Hay waste is high, hay is trampled, horse is gaining or losing slightly	Feeder or feeding setup needs adjustment	Change feeder type, feeding location, or amount
High risk	Horse is losing weight, frustrated, unable to access hay, bullied off feed, or leaving large amounts	Intake may be inadequate or feeder too restrictive	Reassess feeder, hay quality, dental health, herd dynamics, and ration
Critical	Colic signs, choke, laminitis signs, entanglement injury, severe weight loss, mouldy hay exposure, or sudden refusal to eat	This may be a veterinary or safety emergency	Call your vet promptly

The simple decision point is this:

If the feeder saves hay and the horse stays healthy, it is working. If the feeder saves hay but the horse loses weight, fights, coughs, colics, or becomes stressed, it is the wrong setup.

What Else Can Cause Hay Waste?

Not all hay waste is a feeder problem.

Important rule-outs include:

Poor Hay Quality

Horses may reject stemmy, mouldy, dusty, mature, weedy, or unpalatable hay. University of Minnesota notes that hay quality is best assessed through laboratory testing. (University of Minnesota Extension)

Overfeeding

If you feed more hay than the horse needs, some waste is expected. This is especially true in easy keepers.

Mud and Weather

Rain, wind, mud, and snow can turn usable hay into bedding. Feeding location matters.

Herd Competition

A nervous horse may grab hay, drag it away, drop it, and return repeatedly. This looks like waste but is really social pressure.

Dental Disease

A horse with painful teeth may pull hay out, chew poorly, quid, or leave stems behind.

Feeding Boredom

Some horses play with hay, especially if they are confined, underworked, or fed large amounts in one spot.

Feeder Design Mismatch

A feeder that is too restrictive, too high, too low, too unstable, too narrow, or too crowded can create waste or reduce intake.

When Is This an Emergency?

Hay feeder problems are usually management issues, not emergencies. But some signs need prompt veterinary care.

Call your vet if your horse has:

• Colic signs

• Repeated lying down or rolling

• Pawing, flank watching, or sweating

• Choke signs

• Feed or saliva coming from the nose

• Sudden refusal to eat hay

• Rapid weight loss

• Severe coughing or breathing difficulty

• Laminitis signs

• Strong digital pulses or rocked-back stance

• Wounds from feeder edges

• Hoof, leg, or halter entanglement

• Suspected mouldy hay ingestion with illness

• A senior horse suddenly unable to chew hay

Also act quickly if a horse is clearly not getting enough forage. Low forage intake can increase the risk of gastric irritation, behavioural stress, weight loss, and digestive disturbance.

What Should You Do Next?

1. Measure Hay Fed and Hay Wasted

For 3 to 7 days, weigh or estimate:

• Hay offered

• Hay left inside the feeder

• Hay wasted outside the feeder

• Number of horses eating

• Body condition changes

• Manure output

• Feeding behaviour

Without numbers, it is easy to confuse “my horse eats everything” with “my horse is not being fed enough.”

2. Match the Feeder to the Horse

Use the horse’s condition as the guide.

• Thin horse: choose easier access

• Overweight horse: choose slower access

• Senior horse: choose softer, easier access

• Herd horse: provide multiple access points

• Respiratory horse: prioritise clean, low-dust hay and head position

• Wasteful horse: use containment before restriction

3. Introduce Restrictive Feeders Gradually

A sudden change from free hay to a tiny-hole slow feeder can frustrate some horses and reduce intake too much.

Merck notes that dietary changes should be made slowly over about 10 to 14 days to reduce digestive disruption. A feeder change is not exactly the same as a feed change, but if it changes intake speed or total intake, the same principle applies: introduce it sensibly and monitor closely. (Merck Veterinary Manual)

4. Monitor Body Weight

Use:

• Weight tape

• Body condition score

• Photos

• Topline assessment

• Rib cover

• Manure output

• Behaviour at feeding

Check at least every 2 to 4 weeks, and more often when changing feeders.

5. Watch for Bullying

Do not assume every horse gets equal access.

Look for:

• One horse guarding the feeder

• Bite marks or kick marks

• A timid horse waiting nearby

• Hay dragged away

• Horses losing weight despite enough hay being offered

• Increased aggression at feeding

The solution is often more feeding stations, more space, or separating horses by need.

6. Keep Feeders Clean

Old wet hay, mouldy corners, manure contamination, and compacted leftovers should be removed.

Clean feeders regularly and check:

• Drainage

• Rust

• Sharp edges

• Broken welds

• Loose screws

• Net holes

• Trapped legs or halter risks

• Mud around the feeder

7. Avoid Feeding Hay in Mud or Sand

If ground feeding is used, feed on clean grass, rubber mats, tubs, or a clean dry surface. Avoid high-traffic mud areas and sandy patches where horses may ingest dirt.

8. Recheck Hay Quality

If horses are wasting more than expected, the feeder may not be the problem. Test the hay, smell it, inspect it, and compare batches.

9. Adjust for Weather

Rain, wind, snow, and humidity change waste. Covered feeders, wind breaks, hay huts, or better drainage may save more hay than changing the feeder design alone.

10. Reassess if the Horse Changes

A feeder that worked last year may not suit a horse that is now older, has dental disease, is pregnant, lactating, retired, laminitis-prone, or recovering from illness.

Common Mistakes Owners Make

Choosing the Lowest-Waste Feeder for Every Horse

The slat feeder wasted the least hay in the study, but horses using it lost small amounts of weight. That may be useful for some horses, but wrong for others. (University of Minnesota Extension)

Ignoring Body Condition

A feeder should be judged by both hay savings and horse health. Watch the horse, not just the hay bill.

Using One Feeder for a Whole Herd

One feeder can create competition, bullying, and uneven intake. More horses usually means more feeding spaces.

Making Slow Feeding Too Slow

Tiny holes, tight slats, or awkward access can reduce intake too much. Slow feeding should not become underfeeding.

Feeding on Dirty Ground

Hay on mud, sand, manure, or urine-contaminated ground is wasteful and unhealthy.

Forgetting Senior Horses

Older horses may not tolerate restrictive feeders. If they are quidding, dropping hay, or losing weight, check teeth and consider forage alternatives.

Not Checking Feeder Safety

Sharp edges, broken bars, loose mesh, poorly hung nets, or unstable feeders can injure horses.

Prevention: A Better Hay Feeding System

A strong hay feeding setup includes:

• Good-quality hay

• Hay testing when needed

• A feeder matched to the horse’s body condition

• Enough feeding spaces for the herd

• Clean, dry feeding areas

• Low mud and good drainage

• Regular feeder cleaning

• Routine safety checks

• Weight and body condition monitoring

• Dental checks for horses wasting hay or losing weight

• Separate feeding for bullied or thin horses

• Slow feeding only when intake remains adequate

• Clean water available near forage

The best setup is not fancy. It is practical, clean, safe, and matched to the horse.

FAQ

What type of hay feeder wastes the least hay?

In the University of Minnesota small square-bale study, the slat feeder wasted the least hay at 1%, compared with 3% for the basket feeder, 5% for the hayrack, and 13% for no feeder. However, horses using the slat feeder also had lower intake and lost small amounts of weight, so it is not automatically the best choice for every horse. (University of Minnesota Extension)

Is it bad to feed hay on the ground?

Not always. Feeding at ground level can be natural, but feeding hay directly on mud, sand, manure, or wet dirty ground increases waste and contamination. A clean mat, tub, low feeder, or well-drained feeding area is usually better.

Are slow feeders good for horses?

Slow feeders can be very useful for reducing waste, extending eating time, and managing easy keepers. They are not ideal for every horse. Thin horses, senior horses, horses with dental disease, and horses that become frustrated or lose weight may need easier access.

How much hay should a horse eat each day?

Most horses need around 1.5 to 2% of body weight in forage per day on a dry matter basis. Many horses do well around 2% of body weight daily, but age, workload, metabolism, pregnancy, lactation, hay quality, and health status all change the requirement. (Merck Veterinary Manual)

Why is my horse wasting so much hay?

Common causes include feeding on dirty ground, poor hay quality, overfeeding, herd competition, dental disease, boredom, bad weather, or a feeder that does not suit the horse. If the horse is wasting hay and losing weight, arrange a veterinary or dental check.

Final Thoughts

Hay feeders are one of the simplest ways to save money and reduce forage waste, but they need to be chosen carefully.

The best feeder is not always the one that wastes the least hay. It is the one that keeps hay clean, reduces trampling, allows safe access, supports the horse’s body condition, and fits the way your horses actually eat.

For easy keepers, a more restrictive feeder may help. For thin horses, seniors, lactating mares, growing horses, or horses with dental problems, too much restriction can backfire quickly.

Hay belongs in the horse, not in the mud. But the horse still has to be able to eat enough of it.

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If your horse is wasting hay, losing weight, gaining too much weight, coughing around feed, or struggling with a slow feeder, ASK A VET™ can help you work through the feeding setup and decide when veterinary or dental assessment is needed.