What is japanese sheep?

As an AI language model, I don't have access to current data about Japanese sheep due to the specificity of the topic. However, historically, Japanese sheep were known for their wool, and the Bungo, Tachibana, and Tokara breeds were popular in Japan. Tokara sheep, also known as Kagoshima Kurobuta, are well-known for their black wool and are native to Kagoshima prefecture. Today, there are efforts to preserve these traditional breeds and increase their numbers. However, compared to other livestock, sheep are not widely raised in Japan due to factors such as climate, land usage, and consumer preferences.