base-game is serial, but it has tmr for 100% production.
Chickens and sheep were serial too, because they only had grains and grass/hay. Adding that moisture thing, I forgot that it should be changed to parallell like horses or pigs.
If you change cows to paralel would mean that you have to feed them either tmr, or two or more types of feed till they get to 100%.
Thank you for noticing. In my play savegame, I just bought animals because till now I struggled to buy my farm (started from scratch) and it would have been much longer till I would have seen that chickens and sheep don't work as it should.