Body condition scoring for horses: the 0–5 scale explained

Body condition scoring (BCS) is a simple, hands-on way to judge how much fat your horse is carrying. Agriculture Victoria calls body condition the most reliable indicator of whether a horse's diet suits it (Agriculture Victoria – condition scoring and weight estimation). A scale gives you a number to track instead of a vague impression, and helps you notice slow change you might otherwise miss.

Which scale?

Two scales are common:

• 0 to 5 – used by Agriculture Victoria and Victoria's Code of Practice for the Welfare of Horses, and the standard scale in Australia. It's based on research by Carroll and Huntington published in 1988 (Agriculture Victoria). New Zealand's Code of Welfare for horses and donkeys also uses a 0–5 body condition scale (MPI Code of Welfare).
• 1 to 9 (Henneke) – common in the United States and in much international research (Kentucky Equine Research).

This guide uses the 0–5 scale. If you read overseas material using 1–9, don't mix the two – a "5" means very fat on one scale and moderate on the other.

How to score: the method

Agriculture Victoria's method looks at three areas (Agriculture Victoria):

1. The pelvis and rump
2. The back and ribs
3. The neck

Score each area from 0 (very poor) to 5 (very fat), using half scores if needed. Then:

• Use the pelvis and rump score as your base.
• If the neck or ribs score differs from the pelvis by one point or more, adjust the base score by half a point towards it.

Example: pelvis 3, ribs 2, neck 3. The ribs are a full point lower, so the overall score becomes 2.5.

Look and feel

A winter coat or a rug can hide a lot. Agriculture Victoria notes that a long, heavy coat makes visual scoring harder, so run your hands over the horse (Agriculture Victoria). Use a flat hand and firm pressure:

• Ribs: run your hand along the side of the barrel.
• Back: feel along the spine behind the saddle area. Is there a ridge, or a gutter?
• Rump and pelvis: feel the point of the hip and either side of the tail root.
• Neck: feel along the crest and at the base of the neck.

Stand the horse square on level ground, and score from both sides.

What the scores mean

Here's a plain-English summary of each score, based on Agriculture Victoria's descriptions. See the full table on the Agriculture Victoria website.

0 – Very poor

The horse is emaciated. Bones of the pelvis, spine and ribs stand out sharply with tight skin and deep hollows around the tail. The neck is thin and dips (ewe-necked).

1 – Poor

Ribs are easy to see and the backbone is prominent. The rump is sunken, with a clear hollow under the tail, and the neck is still thin and slack.

2 – Moderate

Ribs are just visible. The backbone is covered but you can feel the bony points. The rump is flat either side of the spine, and the neck is narrow but firm.

3 – Good

Ribs are covered but easy to feel. There's no ridge or gutter along the back. The rump is rounded and the pelvis easy to feel, and the neck is firm without a crest (stallions naturally have more crest).

4 – Fat

Ribs need firm pressure to feel. A gutter runs along the back towards the tail. The pelvis is covered in soft fat and the neck has a slight crest.

5 – Very fat

You can't feel the ribs or pelvis. There's a deep gutter along a broad, flat back, a bulging rump, and a thick, hard crest with folds or lumps of fat.

What score should my horse be?

Most healthy adult horses in light work do well around score 3. Agriculture Victoria says letting condition fall below 2 is likely to compromise welfare (Agriculture Victoria), and recommends keeping horses above 2, preferably at 3, through winter (winter care).

Your vet may suggest a different target for horses in hard work, broodmares, older horses or horses with metabolic disease.

When the score is too low

Poor condition isn't always a feed problem. Agriculture Victoria notes it can be caused by worms, dental problems, chronic injury or illness, or reduced mobility (Agriculture Victoria). Check:

• Feed: is there really enough? See how much to feed a horse.
• Teeth: arrange a dental check. See horse dental care.
• Worms: get a faecal egg count – see horse worming.
• Competition: is the horse being pushed off feed by others?
• Weather: cold, wet, windy conditions burn energy – see horse rugging guide.

Act early. Agriculture Victoria says a horse below score 2 needs twice as much feed to gain 1 kg as it takes to maintain weight (winter care). Victoria's Code also requires horses that lose condition and don't respond to special feeding to be examined by a registered vet (Code of Practice).

When the score is too high

Carrying too much fat isn't harmless. Obese horses are predisposed to pasture-associated laminitis (MSD Veterinary Manual). A hard, cresty neck in particular can be a warning sign of metabolic problems, so talk to your vet. See laminitis and feeding good and poor doers.

Safe ways to reduce weight usually include restricting grazing, cutting back or removing hard feed, using lower-energy hay and increasing exercise. Don't starve a horse or drop forage too far: Victoria's Code says horses need at least 1% of body weight in roughage daily, and that selective feed reduction should only be done by experienced people or under veterinary supervision (Code of Practice).

Estimating weight from condition score

Agriculture Victoria publishes a table to predict weight from height and condition score, and a simple formula using measurements (Agriculture Victoria):

Weight (kg) = girth (cm) × girth (cm) × length (cm) ÷ 12,000

Measure girth around the barrel just behind the withers and elbow, and length from the point of the shoulder to the point of the buttock. For example, a horse with a 185 cm girth and 160 cm length works out at 185 × 185 × 160 ÷ 12,000 ≈ 456 kg.

Weight is needed for feed planning and for dosing wormers and other drugs correctly. See how to measure a horse's height and weight.

Making scoring a habit

• Score every two to four weeks, and more often when the season changes or you change feed.
• Write it down with the date, weight-tape reading and a photo from the same angle.
• Take the rug off. Victoria's Code requires rugs to be removed at least weekly to check condition (Code of Practice).
• Get a second opinion. Owners often under-score their own horses. Ask your vet or an experienced friend to score with you.

Find an equine vet near you on horse.work for a condition and weight check, or find an equine dentist if teeth might be the problem.

FAQ

What is a good body condition score for a horse?

On the 0–5 scale, most healthy adult horses do well at about 3. Agriculture Victoria says condition below 2 is likely to compromise welfare (Agriculture Victoria).

Is a body condition score of 5 good?

On the Australian 0–5 scale, 5 means very fat. On the US 1–9 Henneke scale, 5 is moderate (KER). Always check which scale is being used.

How often should I condition score my horse?

Every few weeks is a good habit, and more often at changes of season, feed or workload. Rugged horses should have the rug off at least weekly (Code of Practice).

Can I condition score a horse in winter coat?

Yes, but you must feel rather than just look. A long coat hides ribs and hollows (Agriculture Victoria).

My horse is thin but eats well – why?

Common causes include worms, dental problems, illness, injury or being bullied off feed (Agriculture Victoria). Talk to your vet.