1. Poor. Animal is extremely emaciated. Spinous
processes (portion of the vertebra of the backbone
which project upward), ribs, tailhead, and bony
protrusions of the pelvic girdle (hooks and pins) are
prominent. Bone structure of withers, shoulders,
and neck are easily noticeable. No fatty tissues can
be felt.
2. Very Thin. Animal is emaciated. Slight fat covering
over base of the spinous processes. Transverse
processes (portion of vertebrae which project
outward) of lumbar (loin area) vertebrae feel
rounded. Spinous processes, ribs, shoulders, and
neck structures are faintly discernible.
3. Thin. Fat is built up about halfway on spinous
processes. Transverse processes cannot be felt.
Slight fat cover over ribs. Spinous processes and
ribs are easily discernible. Tailhead is prominent,
but individual vertebrae cannot be visually identified.
Hook bones (protrusion of pelvic girdle appearing
in upper, forward part of the hip) appear
rounded, but are easily discernible. Pin bones
(bony projections of pelvic girdle located toward
rear, mid-section of the hip) are not distinguishable.
Withers, shoulders, and neck are accentuated.
4. Moderately Thin. Negative crease along back
(spinous processes of vertebrae protrude slightly
above surrounding tissue). Faint outline of ribs is
discernible. Fat can be felt around tailhead (prominence
depends on conformation). Hook bones are
not discernible. Withers, shoulders, and neck are
not obviously thin.
5. Moderate. Back is level. Ribs cannot be visually
distinguished, but can be easily felt. Fat around
tailhead begins to feel spongy. Withers appear
rounded over spinous processes. Shoulders and
neck blend smoothly into body.
6. Moderate to Fleshy. May have slight crease down
back. Fat over ribs feels spongy. Fat around
tailhead feels soft. Fat begins to be deposited
along the sides of the withers, behind the shoulders,
and along sides of neck.
7. Fleshy. May have crease down back. Individual
ribs can be felt, but with noticeable filling of fat
between ribs. Fat around tailhead is soft. Fat is
deposited along withers, behind shoulders, and
along neck.
8. Fat. Crease down back. Difficult to feel ribs. Fat
around tailhead is very soft. Area along withers is
filled with fat. Area behind shoulder is filled in flush
with rest of the body. Noticeable thickening of
neck. Fat is deposited along inner buttocks.
9. Extremely fat. Obvious crease down back. Patchy
fat appears over ribs. Bulging fat around tailhead,
along withers, behind shoulders, and along neck.
Fat along inner buttocks may rub together. Flank
is filled in flush with rest of the body.
This is the exact chart that was developed by Henneke, et.al. at Texas A&M University. The chart has become widely used by all equine professionals across the United States. This is possibly one of the only measurements in the equine industry that has not resulted in complete controversy and has become a standard to be followed. This chart will not necessarily work for ponies and donkeys as they lay their fat in abnormal areas, but is appropriate for all horse breeds.