Aberrant horns. (Rams). Horn phenotype G Aberrant horns can appear so similar to full horns, as to go unnoticed. Some "teacup" style horns carry polled, but many do not. Aberrant horned rams can can produce smooth polled ram lambs.  These rams are still considered "polled", as they carry a poll gene.

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This UK ram was collected, and his semen imported into North America for use in artificial insemination. Some of the F1's by this ram were smooth polled. Holly's line continues to throw polled rams here in North America, as does Roban Dillon, another UK half polled ram who's semen was imported.

Winter Sky Jamison. The aberrant horned ram has thrown polled and scurred ram lambs. Notice the narrow horn base compared to fully horned rams. The right horn has broken off.

Shelteringpines Bombarde and PS23 Craigrothie AI are both aberrant horned rams who carry one copy of the poll gene. These rams have produced polled rams. Bombarde photo courtesy of Sabrina Erickson of Boston Lake Farm in MN, Craigrothie photo courtesy of Laura Matthews of PS23 Farm in WI.

This plate courtesy of S. Dolling's book "Breeding Merinos". Aberrant horns compared to horns.   Observe the shorter length and slightly thinner horn base on the above ram.