What is the loudest between a cow chicken pig horse?

Among cows, chickens, pigs, and horses, pigs are generally considered the loudest. They can produce a range of vocalizations, including grunts and squeals, that can reach up to 110 decibels. While horses and cows can also be loud, their vocalizations typically do not reach the same intensity. Chickens are the quietest of the group, with clucks and crows being relatively softer.