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 raising of foxes under controlled conditions is a permanent agricultural development. Profits compare favorably with those derived from other similar enterprises and can be obtained if the same business-like methods are applied. The newness and rapidity of development of this industry have left many points of specific information wanting. Foxes in captivity present, not only the usual problems of animal care and management as do domestic live stock, but coupled with these are difficulties met with in maintaining wild animals in captivity. Hygiene in fox farming involves the establishment of conditions most· conducive to good health with attention centered, not so much on curing disease, as on removing some of its causes.
Lee, C. D.
"Sanitation-Diseases and Parasites of Foxes,"
Iowa State University Veterinarian: Vol. 2
, Article 8.
Available at: https://lib.dr.iastate.edu/iowastate_veterinarian/vol2/iss2/8