Visit your local county extension agent for information. A local agricultural college or college that has an agricultural program involving dairy and/or beef cattle is also a good place to visit to get breeding info on cattle. The internet is also a good place to go with, but be sure to make sure you are visiting good sites and not ones where you can't find where they got their info from.
Here's some good sites I found for you:
http://www.thebeefsite.com/articles/cat17/breeding-and-genetics
http://www.agric.gov.ab.ca/app21/infopage?cat1=Livestock&cat2=Beef
http://www1.foragebeef.ca/$foragebeef/frgebeef.nsf/all/ccf1007
That's just a start, as there is plenty of info at your disposal if you know what to look for.
No.
Cows used for breeding only, or cows that are already pregnant.
Yes, breeding cows is considered as animal husbandry.
Some farmers may refer to them as Brood Cows.
Artificial Insemination or AI.
Someone that is looking for a free tutorial with cows mating can find the information or video at the website YouTube. Here one can find a variety of instructional videos to help one find how cows mate.
Breeding dairy cows produces calves which subsequently makes them produce more milk in the next production year. Calves are also raised as replacements (if they are heifers) for the other cows, as these calves have been selected, through the process of sire selection, for giving more milk per year when they mature into cows.
Selective breeding, selecting for bulls and cows that have better milking ability, breeding those animals together and culling out the cows that have less than average or inferior milking ability. Bulls with less-than-ideal milking ability are not used on such cows.
Breeding history, food amount, grooming, skills... Loads
Beef.
cows, sheep, horses, hens, chickens,etc.
As far as thousands of years of breeding, evolutionary studies, genetic observations, and common sense are concerned, there is no evidence that cows are of extraterrestrial origin.