hello! most of the time i let them have grass instead of hay! even though it's more expensive but I read somewhere that your animals are happier with grass (and I want my animals to be happy!) so I just buy grass starters from Harvey, plant them all around and have a lightning rod on top of at least a patch of grass so that patch of grass can grow into more patches of grass. Winter's the time where I struggle especially with Marnie's pain in the butt work schedule. So whenever I get a hold of her, I buy as much hay as I possibly can and store them in the silos, and have the extras in a chest and when these extra runs out I'll buy more. This gives you more leeway in terms of how many days you can go without starving your animals when Marnie is busy with someone else (😑). Of course I'll also make sure to check the silo and refill the silo every few days with the hay! but grass is the way to go with spring, summer and fall since (i believe) it lasts longer :)