Pasturizing is easy to do. Although I don't remember exact details, it's something like; a few minutes at 160 deg on the stove top in a pan.
If you have access to the internet it's very easy to get the details, if not I or I'm sure someone can get it for you.
We have been milking our Jersey/Angus/Longhorn cross for about a year now. At first with the calf she came with we were only milking in the morning. When we had the calf processed the milking went to twice a day.
Our cow has a great amount of butterfat, close to 3 inches in the gallon jar when it settles out.
We pasturized at first and we quit once we decided our cow was healthy. The benefits of raw milk are really good. If someone is lactose intolerant they will stand a chance of being able to drink it raw.
We make butter, it has a strong scent but it taste great (can't go back to store bought
) the cream has an excellent after taste and it's great in coffee.
We clean the udder with water and a little vinegar in it prior to milking .
We then filter it into a jug with a funnel and milk filter when we get back in the house. We keep our milking utensils as clean (bacteria free) as possible. We see a difference in our milk lasting for days and our friends who don't keep their's as clean, they're milk starts going bad in a couple of days.
It doesn't take any more effort to have cleaner equipment, it's just a matter of how one views germs.
Our schedule is hectic so we haven't been able to stay with a certain milking time of day. It hasn't affected our cow or the milk. But I'm sure each cow can be different. In a way I guess our varied milking schedule is a schedule in itself. It's what our cow has come to expect.
I would guestimate we get 2 gal in the morning and 1 1/2 gal at night. The only reason we milk at night is to keep her supply going so she won't dry up. She is being serviced by our neighbor's bull now and so when we get her calf we'll go back to once a day milking. She hasn't allowed an orphan calf we have to nurse since we took her calf away.
What we found out is this, if our cow is healthy our milk is healthy so we don't have a problem drinking it raw. We use natural medicines instead of chemical ones to keep them healthy. Also, drinking raw milk is a 'selective squeamish' event, all that say they want to try our milk, once they think about it being raw they rethink it.
We all love our milk, it taste great. We graze her with only a little grain during milking.