Those who handle livestock such as pet goats and mini pigs for pets

Goats, mini pigs and ponies for pets fall under "livestock" in the Livestock Commercial Code.
A livestock business license is required to run a livestock transaction business such as buying and selling and exchanging livestock.
Procedures for Yokohama citizens obtain a livestock business license will be the Yokohama Kawasaki District Agricultural Administration Office.
For more information, please visit the website of Kanagawa Prefecture.

https://www.pref.kanagawa.jp/docs/w5c/cnt/f70185/p5716.html (external site)

※Five types of cattle, horses, pigs, sheep and goats are defined as livestock.