A common male homosexual vice in feedlot cattle is an activity where some steers, “bullers”, sexually attract other steers, “riders”. One theory of the cause is that bullers are excessively feminized and give off sexually stimulating pheromones.

Why do cattle mount each other?

Bulling is a behaviour seen in cattle when one mounts another, usually when one or the other is a female in oestrus (on heat); "bulling" is commonly used as a term for a female in oestrus. Female cattle in oestrus may mount any adult cattle, especially a bull (fertile male) if one is present, but they will also mount ...

What does it mean when a cow mount another cow?

Estrus, or standing heat, is defined as a regularly occur- ring state of sexual receptivity during which the female will accept the male. This is indicated in cattle by the cow standing to be mounted by a bull or other cows.