Because it was (and still is) a source of income, food, clothing and other edible and non-edible things for humans.
Artificial Selection. :)
Artificial selection
artificial selection artificial selection
1) Livestock is important because they produce food. 2) livestock is important because they provide key inputs to crop agriculture. 3) livestock is important because you can have your own income.
Livestock
Kentucky's most important livestock are Thoroughbred horses and cattle.
Beef cattle and hogs are important livestock products in North Dakota.
to keep your dog in!
The process is called artificial selection.
You can buy a livestock trailer in a16' length which should be more than ample for 4 head of cattle. Take a look at http://www.fthr.com/gooseneck_livestock-trailer to see a selection of available livestock trailers.
When going to a livestock auction it is important to find a reputable location, good auctioneers and nice cattle for sale. Many times the location of the auction is the most important aspect because nearby raisers are the ones who provide the livestock.
I think its cattles