FS22 JMF Dairy Barn v18.104.22.168
Look for the help icons to show where you buy animals, feed the animals, load the milk, and load the slurry.
Manure heaps work different in FS22, included is the Patz barn cleaner that will store you manure, and you fill a spreader or trailer under the end of the chute.
Other features in the ability to hide the slurry pipe, the trigger is near the pump. go back to the same spot to unhide.