Why Feeding by Weight Matters More Than You Think
It's one of the most common habits in yards across the country — reaching for the feed scoop, filling it to the brim, and tipping it into the bucket. It feels routine, it feels normal, and most of us have done it without a second thought.
But here's the problem: a scoop of one feed is not the same as a scoop of another feed. And even two scoops of the same feed can vary significantly in weight depending on how tightly they're packed, how full the scoop is, and even the shape of the pellets or mix.
Feeding your horse by weight rather than by volume is one of the simplest, most impactful changes you can make to improve your horse's nutrition. It costs almost nothing — just a set of kitchen or luggage scales — but the difference it makes to accuracy, consistency, and your horse's health can be enormous.
The Problem With Scoops
A standard "Stubbs" scoop is often treated as a universal measure. Many horse owners assume a scoop is a scoop, regardless of what's in it. But scoops measure volume, not weight — and the density of different feeds varies wildly.
Consider these examples:
- A level Stubbs scoop of a competition mix might weigh around 1.2 kg
- The same scoop filled with a high-fibre cube could weigh around 1.5 kg
- A scoop of chaff might weigh as little as 0.3 kg
- A scoop of sugar beet pellets (dry) could weigh approximately 1.4 kg
- A scoop of balancer pellets might weigh around 0.8 kg
Those are significant differences. If a feed manufacturer recommends feeding 500g of a balancer per day and you're casually scooping what looks like the right amount, you could easily be feeding 30-50% more or less than intended.
Why Does This Matter So Much?
Feed manufacturers formulate their products to deliver specific levels of vitamins, minerals, protein, energy, and other nutrients at a recommended feeding rate — stated in kilograms, not scoops. When you deviate from that rate, the carefully designed nutritional profile of the feed is thrown off.
Underfeed, and your horse may not receive adequate levels of essential micronutrients like selenium, copper, zinc, or vitamin E. Overfeed, and you risk providing excess calories, unbalancing mineral ratios, or even pushing certain nutrients into potentially harmful territory.
Real-World Consequences of Inaccurate Feeding
Feeding by scoop rather than weight doesn't just cause minor discrepancies — it can contribute to real health and performance problems over time.
Weight Gain and Obesity
Overestimating feed quantities is incredibly common, particularly with calorie-dense mixes and cubes. Even an extra 200g per feed, twice a day, adds up over weeks and months. For good doers or horses in light work, this can tip the balance from maintaining a healthy weight to creeping obesity — which brings its own cascade of risks including laminitis, insulin dysregulation, and joint strain.
Nutritional Deficiencies
On the other end of the spectrum, underfeeding is just as problematic. Many horse owners use a balancer or supplement but feed less than the recommended rate. If the product is designed to deliver 100% of daily micronutrient needs at 500g per day, and you're only feeding 300g, your horse is only receiving about 60% of those key nutrients. Over time, subclinical deficiencies can manifest as poor hoof quality, a dull coat, a weakened immune system, or reduced muscle recovery.
Inconsistent Energy Supply
Horses thrive on routine and consistency. When feed quantities vary from day to day — as they inevitably do when estimated by eye — the energy supply fluctuates too. This can contribute to behavioural changes, inconsistent performance, and digestive disturbances.
Digestive Upset
The equine digestive system is sensitive to sudden changes in feed volume and composition. If one person at the yard fills the scoop loosely and another packs it down, the horse could receive meaningfully different amounts of starch and sugar from one meal to the next. This inconsistency increases the risk of hindgut disturbance, which can range from mild discomfort to colic.
How to Start Feeding by Weight
The good news is that switching to feeding by weight is straightforward and takes very little extra time once you've set it up.
Step 1: Get a Scale
You don't need anything fancy. A basic set of kitchen scales (capable of weighing up to 5 kg) works well for concentrates and supplements. For larger quantities of chaff or forage, a luggage scale or hanging spring balance is ideal. You can pick either up for under £15.
Step 2: Weigh Every Component
Weigh each element of your horse's bucket feed individually:
- Concentrate feed (cubes, mix, balancer)
- Chaff (this is often massively overestimated by volume)
- Supplements (many are measured in grams, so accuracy matters)
- Sugar beet (weigh it dry before soaking, as feeding instructions refer to dry weight)
- Oil (can be measured by volume as oil has a consistent density)
Step 3: Mark Your Scoops
Once you've weighed each feed, mark the correct level on your scoop with a permanent marker or piece of tape. This way, you don't need to weigh every single meal going forward — you just fill to the line. However, it's good practice to re-weigh every few weeks, especially if you've switched to a new batch of feed, as pellet size and density can vary slightly between production runs.
Step 4: Weigh Your Forage
This is the part most people overlook. Forage makes up the vast majority of most horses' diets — typically 70-100% of total intake — so inaccurate forage quantities have the biggest impact of all.
Hay nets and sections of a bale vary enormously in weight. One "section" pulled from a tightly packed bale might weigh 4 kg; from a loosely baled batch, the same-looking section might weigh 2 kg. The only way to know is to weigh it.
Use a luggage scale to weigh your hay nets after filling them. Again, once you know how much a typical net from your current batch weighs, you'll develop a feel for it — but keep checking regularly.
Step 5: Record and Review
Keep a note of exactly what your horse receives each day, by weight. This becomes invaluable when discussing your horse's diet with a nutritionist, your vet, or when analysing your horse's diet with a tool like MyEquiBalance. Without accurate weights, any dietary analysis is essentially guesswork.
Common Excuses (and Why They Don't Hold Up)
"I've always done it this way and my horse is fine."
Your horse may appear fine, but subclinical deficiencies and minor imbalances don't always produce obvious symptoms — at least not immediately. Poor hoof growth, a slightly dull coat, slower-than-expected recovery from exercise, or susceptibility to illness can all be linked to nutritional gaps that go unnoticed for months or years.
"It takes too long to weigh everything."
Once your scoops are marked, daily feed preparation takes no extra time at all. The initial weighing session takes perhaps 10-15 minutes. That's a tiny investment compared to the time and money you'd spend addressing health issues caused by poor nutrition.
"My horse just gets a handful of this and a bit of that."
Even casual supplementation needs accuracy. A "handful" of a supplement could be 50g or 150g depending on your hand size, the product's density, and how generous you're feeling that day. Many supplements contain nutrients like iron, manganese, or iodine where excess is just as problematic as deficiency. Accuracy protects your horse.
"The feed merchant told me to use two scoops."
Feed company helplines and merchant staff typically give advice based on weight. If someone says "two scoops," they're likely using that as an approximation — and it may not apply to your scoop, your horse, or your situation. Always refer back to the weight-based feeding guidelines on the bag and measure accordingly.
Special Considerations
Horses on Restricted Diets
For horses prone to laminitis, those with Equine Metabolic Syndrome (EMS), or those with Pituitary Pars Intermedia Dysfunction (PPID/Cushing's), precise feeding is not just good practice — it's a medical necessity. These horses often need their total daily dry matter intake carefully controlled, sugar and starch levels minimised, and calorie intake tightly managed. None of that is achievable without weighing feed.
Multiple Caregivers
On busy yards where several people might be responsible for feeding at different times, consistency is a major challenge. Marked scoops and written feed charts (with weights clearly stated) ensure that every person feeding your horse provides the same amount, every time.
Travelling and Competitions
When you take your horse away from home, it's easy to lose track of feed quantities. Bring your marked scoops or pre-weigh feeds into labelled bags. Maintaining nutritional consistency during the added stress of travel and competition is especially important for digestive health and performance.
Don't Forget the Bigger Picture
Weighing your feed accurately is an essential foundation, but it's only one part of good nutritional management. To truly understand whether your horse's diet is meeting their needs, you need to look at the whole picture — the forage, the concentrates, the supplements, and how they all work together.
This is where a proper dietary analysis becomes invaluable. By analysing your horse's diet, you can identify gaps, excesses, and imbalances that you'd never spot just by reading feed bag labels. But that analysis is only as good as the data you put in — and that starts with accurate weights.
Summary: Small Change, Big Impact
Feeding by weight rather than by scoop is one of the easiest, cheapest, and most effective improvements any horse owner can make. To recap:
- Scoops measure volume, not weight — and different feeds have very different densities
- Manufacturer feeding rates are given in kilograms for a reason
- Inaccurate feeding can lead to obesity, deficiencies, digestive upset, and poor performance
- Weighing takes minutes to set up and no extra time once scoops are marked
- Forage should be weighed too — it's the biggest part of most horses' diets
- Accurate weights are essential for meaningful dietary analysis
Invest in a cheap set of scales, spend fifteen minutes weighing and marking your scoops, and you'll have taken a significant step towards giving your horse the nutrition they actually need — not just what fits in a scoop.