Which Leghorn variety adaptation helps combat freezing susceptibility in cold climates?

The Rose Comb variety

When managing Leghorns in regions characterized by severe winters, keepers are advised to consider breed variations specifically adapted to reduce cold-related risks. The primary physiological structure at risk is the large, single comb, which is prone to frostbite due to its surface area exposure. The Rose Comb variety directly addresses this issue because its comb structure is significantly smaller and more compact than the single comb. This reduced size and different conformation mean the Rose Comb is far less susceptible to freezing and subsequent frost damage when exposed to freezing conditions. Choosing this variation is a direct, simple adaptation recommended for maintaining the birds' health and comfort during periods of harsh cold.