South Australian Consolidated Acts South Australian Consolidated Acts60A—Earmarks identifying heterozygous sheep
Notwithstanding any other provision of this Act, a person may earmark a sheep
that carries the colour pattern gene w with a mark consisting of three holes
that are not less than six nor more than ten millimetres in diameter placed in
a line from the root to the tip of the animal's left ear (in the case of a
male sheep) or the animal's right ear (in the case of a female sheep).