"Narrow pinned" is a term used across all livestock, both breeding and market. It refers to an animal that has a narrower width between its pin bones, which are located in the hip area. This is best evaluated from behind, looking at the upper hip.

Being narrow pinned is generally considered a negative trait. Animals with a wider, or stouter, pin width usually have more muscle in their hindquarters. So, a narrow pinned animal might not be as muscular or strong in this area, which could affect both its market value and its breeding potential.
Questions that use this term.
Who is the narrow pinned hog who is the plainest through his lower hip and ham?
Species Distribution of Term
Distribution of the types of classes in our database this term is used in.