This checkoff list could be used by a scribe to keep track of which Scouts have earned which merit badges or could be used by an individual Scout.
Animal Science Merit Badge
Cattle, horses, sheep, goats, hogs, poultry, and other domesticated animals are important to people for many reasons. They supply us with food and clothing, we use them for recreational purposes, they work with and for us.
Printable helps for requirements:
A reader asks about how old a Scout should be to work on a merit badge. The Guide to Advancement provides some answers.