A small question. On many occasions, I wondered if it would be possible to buy a third feed mill, a second dairy and another bakery or jam maker . Indeed, despite a large number of boxes unlocked, it is sorely lacking space and time.
Until they get down to doing this, most of us get around it by starting extra farms to help with supply bottlenecks.
If one were to add up the cycle time of all the available farm animals, four mill feeds working 100% actually still wouldn't be able to keep up. It's balanced by slowing down the supply chain, limiting how fast the animal resources get used up.