The word "Pharming" is a combination made from the words "farming" and "pharmaceuticals." The practice is also a combination of basic agriculture and complex bio-sciences.
The purpose of Pharming is to alter animal DNA so that they can produce chemicals that benefit human health. There are already many livestock that have been altered to produce valuable proteins and drugs for human use.
Kristen Machaelis, n.d, GMOs and Pharmaceuticals, accessed 2 May 2015, http://www.foodrenegade.com/gmos-and-pharmaceuticals/