Iowa State University Veterinarian Records, RS 22/6/0/9, University Archives, Special Collections Department, Iowa State University, http://www.add.lib.iastate.edu/spcl/arch/rgrp/22-6-0-9.html
The modern dairy cow has become a refined "biological machine." Hers is a background of production-oriented breeding and management practices that seek to maximize lactation capabilities. Such emphasis on these capabilities is not without consequence, however, and the dairy cow has acquired maladies that are uncommon in other members of the bovine species. This paper will review a problem that is more or less unique to dairy cows.
McArthur, Morgan J. and Thompson, James R.
"A Treatise on Left Abomasal Displacement in Dairy Cattle,"
Iowa State University Veterinarian: Vol. 45
, Article 6.
Available at: http://lib.dr.iastate.edu/iowastate_veterinarian/vol45/iss2/6