The Clinical Measurement Ontology (CMO), Measurement Methods Ontology (MMO), and Experimental Condition Ontology (XCO) are currently being developed at the Rat Genome Database. For more information about these vocabularies please see Shimoyama et al. Three ontologies to define phenotype measurement data. Front Genet. 2012;3:87. Epub 2012 May 28 or contact us (http://rgd.mcw.edu/contact/index.shtml).
A dietary regimen in which access to food is limited, e.g. to a specified number of hours per day or to a specified part of the light-dark cycle, with or without restrictions in the amount or type of food available when feeding is allowed.