Dairy Farming in Italy?

I'm sure this isn't representative of Italian dairies. The story about driving cows 100 miles between winter and summer pastures is interesting, though it leaves many questions unanswered. (Since the lead character is a cheesemaker, I'm assuming these are dairy cows, though the wikipedia entry is less clear. )  My big question: when and where are they milked? Milking during the drive seems unfeasible, which would seem to imply milking only at one end of the drive or the other. So these surely aren't milked for the 300 days standard for Holsteins in my youth.  And where are the calves--do they make the drive as well?


I vaguely remember in my youth reading about herds in Switzerland going from one pasture to the other. I suppose the same issues arise.