Icelandic Horse mares, like any other breed of horse or pony, need to have their
teats cleaned at times.
My pinto mare can go for months without needing to be cleaned. On the other hand,
my palomino filly needs her teats cleaned every week or so. She has dark smegma
and the pinto has white smegma.
"Smegma is a natural lubricating residue made up of shedded skin cells,
skin oil secretions, and moisture, including sweat. Its cheesy like
appearance can vary in color from almost white to a darker shade,
depending on a horse's skin tone. Smegma gathers in the nooks and crannies
of the body's skin folds including teats.
Smegma consists of surplus oil, dead skin cells, stale urine, and miscellaneous
dirt which have collected under the teat. Smegma is a 'waste product' and serves
no useful purpose. If not cleaned away regularly it becomes hard and smelly.
It is also a breeding ground for bacteria, which can lead to mastitis."
Here are a couple of pictures showing use of KY Jelly as a cleaner. The
first picture shows a blob of jelly squeezed onto a paper towel.
The next picture shows some of the smegma.
Jeffers has a gallon of a cleaner / lubricant, called J-Jelly, for $10.