Measurement notes
Use a predefined scoring scale and score at the same time of day. When the scale is ordinal, avoid treating score intervals as equal unless the analysis plan justifies it.
Endpoint methods library
Home-cage welfare and species-typical behavior endpoint
Nest quality score
Ordinal rating of nest construction quality after a defined nesting-material exposure period.
Unit
ordinal score
Readout
Ordinal nest construction score after a defined exposure period
Assays
Home-cage nesting, welfare monitoring, sickness behavior, neurodegeneration, pain, recovery studies
Decision summary
Use nest quality score when the study needs a low-burden home-cage readout of species-typical behavior, welfare, sickness, or neurologic dysfunction. Report the score with material type, cage conditions, scoring time, and untorn material when possible.
| Primary value | Ordinal nest construction score after a defined exposure period |
|---|---|
| Common units | 0-5 or 1-5 ordinal score, untorn material weight, shredded material percent |
| Compatible assays | Home-cage nesting, welfare monitoring, sickness behavior, neurodegeneration, pain, recovery studies |
| Required boundary | Nesting material, scoring scale, exposure duration, and cage condition |
| Do not infer alone | Welfare, cognition, pain, thermoregulation, or sickness without clinical context |
Interpretation limit
Low nest quality can reflect impaired species-typical behavior, pain, sickness, neurologic dysfunction, stress, cold exposure, lack of material preference, or social disruption. High scores do not rule out subtle welfare problems.
Data capture
Store animal or cage ID, housing condition, material type, material weight, exposure duration, score, untorn residue, scorer ID, time of scoring, room temperature, treatment timing, and clinical observations.
Confound checks
- Nesting material type, amount, or placement differs between cages.
- Group housing makes individual attribution difficult.
- Room temperature, cage change timing, bedding, or enrichment changes nesting drive.
- Scorer expectations influence ordinal ratings.
- Pain, sickness, sedation, neurologic deficits, or social hierarchy changes material use.
Reporting checklist
- Scoring scale, material type, material amount, exposure duration, and scoring time.
- Housing condition, cage-change timing, bedding, enrichment, temperature, and light cycle.
- Nest score, untorn material weight, shredded percentage, and clinical observations.
- Whether the unit is animal, cage, pair, or group and how group nests were handled.
- Scorer blinding, inter-rater reliability, exclusion criteria, and ordinal analysis plan.
- Companion endpoints such as body weight, burrowing, locomotion, pain measures, or clinical score.
References
Evidence notes
Endpoint pages should cite the method literature behind the scored value and keep high-specificity protocol claims qualified unless the source supports them.
Related workflow paths
Endpoint articles link to adjacent products, software workflows, and sibling endpoints where the connection is useful and already routable.
