subpart_subject: "Specifications for the Humane Handling, Care, Treatment, and Transportation of Guinea Pigs and Hamsters"
section_number: "3.33"
section_subject: "Classification and separation."
cfr_reference: "9 CFR 3.33"
title_name: "Title 9"
title_subject: "Animals and Animal Products"
parts_covered: "Parts 1 to 199"
revised_date: "Revised as of January 1, 2019"
publication_date: "As of January 1, 2019"
contains_description: "Containing a codification of documents of general applicability and future effect"
publication_info: "Published by the Office of the Federal Register National Archives and Records Administration as a Special Edition of the Federal Register"
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Animals housed in the same primary enclosure shall be maintained in compatible groups, with the following additional restrictions:
(a)Except where harem breeding is practiced, preweanling guinea pigs shall not be housed in the same primary enclosure with adults other than their parents.
(b)Guinea pigs shall not be housed in the same primary enclosure with hamsters, nor shall guinea pigs or hamsters be housed in the same primary enclosure with any other species of animals.
(c)Guinea pigs or hamsters under quarantine or treatment for a communicable disease shall be separated from other guinea pigs or hamsters and other susceptible species of animals in such a manner as to minimize dissemination of such disease.