You can keep animals such as cows and chickens on your farm and collect byproducts such as milk and eggs from them.
Livestock can be purchased from animal shops in Westown and Tsuyukusa. However, you need space in a barn or coop to buy animals. Barns and coops can be ordered from the jack of all trades shop in Lulukoko.
Feed your animals once a day and increase their affection for you by brushing them, giving them treats, and putting them out to pasture. You don't need to brush chickens, though. That would be "fowl" play.
There are several types of cows that all produce milk when fully grown.
You can shear sheep to collect wool. There are two different breeds!
Chickens and other fowl will lay eggs for you.
Alpacas are a source of high-quality wool. They can be tough to wrangle!
Angora rabbits produce an especially soft fur, which they periodically shed.