Microlivestock: Little-Known Small Animals with a Promising Economic Future - National Research Council, Policy and Global Affairs, Office of International Affairs, Panel on Microlivestock - Google Books

http://books.google.de/books?id=MINldfJIjBYC&pg=PA282&dq=Proechimys+guyannensis&lr=&cd=62#v=onepage&q=Proechimys%20guyannensis&f

Microlivestock is a term coined for species that are inherently small as well as for breeds of cattle, sheep, goats, and pigs that are less than about half the size of the most common breeds. These miniature animals are seldom considered in the broad…