Dairy Farming

 The modern high-producing dairy cow is a result of selective breeding. This means that her ancestors have proved their productive ability and that they approach the breeder's ideal of good dairy form.
Their function has been to produce large quantities of milk, and observant breeders have found that this function demands that the animal be so formed that she has the bodily equipment to carry on the work of milk secretion (production).
Breeders have found that certain characteristics of form are always associated with high productive ability,and they consider these features in selecting their breeding stock. First among them is the general shape of the animal.