title: Metal-free housing units for trace element studies in rats.
abstract: Metal-free housing units fabricated from clear plastic and polystyrene egg crate panels were used to house rats for studies involving trace elements. The cages did not require bedding, were well ventilated and fitted into commercially available cage racks. Modifications of the basic design were made to provide both maternity and metabolism cages.
mesh_terms: D000818:Animals; D005260:Female; D006799:Housing, Animal; D008297:Male; D010969:Plastics; D011247:Pregnancy; D051381:Rats / Q000378:metabolism*; D014131:Trace Elements / Q000378:metabolism*
chemical_list: D010969:Plastics; D014131:Trace Elements