sydeals
You probably have never seen a Milk farm before. You actually cannot easily mix pigs and cows milk there.
Nobody milks cows by hand anymore, they heard the cows into a milking barn , attach some apparatus to the utters and some machines milks like 10-15 cows at once. Technically its not Chalov Yisrol or Chalov ASkum, Its Chalov Machine.
The milking apparatus only fits a cow utter, it doesnt fit a pigs utters (Or any other animal) . Its all automated today