Our 4H group drove down the street to a Dairy Farm that supplies hundreds of gallons of milk to the local cheese factory. The owners were twin brothers and they definately knew their cows. They can track their cows with their smart phones, so they know just when it is time to breed them or when it is about time to give birth just by the cows wearing a $40 bracelet around their ankle. Technology has definately changed the way things are done in present day.
Now the smell.......Naaa, that would ruin it all. I won't talk about the smell.