Which Häst breeds come in Apelkastad?

Club breed standards describe Apelkastad for the Percheron.

Häst pattern

Apelkastad

Rings of darker hair around lighter centers over the body, as in dapple gray horses. The Dachshund's dapple is the merle pattern.

4 Häst breeds list Apelkastad. It is in a club standard for 1 breed.

Breed	SHPF
Percheron	Standard (“gris fortement pommelé”)

How Apelkastad can appear or change over an animal's life.