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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 (

Term:litter size
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Accession:CMO:0000642 term browser browse the term
Definition:The number, i.e., the quantity determined by count, of animals in a group of neonates, products of one gestation produced at one birth by a multiparous mammal.
Synonyms:exact_synonym: total litter size

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Related Phenotype Data for Term "litter size" (CMO:0000642)

Rat Strains:
Clinical Measurements:
Experimental Conditions:
Measurement Methods:

Term paths to the root
Path 1
Term Annotations click to browse term
  clinical measurement 2369
    reproduction measurement 2
      offspring measurement 1
        number of offspring 0
          litter size 0
            calculated litter size measurement + 0
            number of live offspring per litter 0
            number of male offspring per litter + 0
            number of viable embryos per gestation 0
            percent of live offspring per litter 0
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