necropsy

https://doi.org/10.1351/goldbook.10996
Postmortem examination of the organs and body tissue of a non-human animal to determine cause of death or pathological condition.
Compare: autopsy
Source:
PAC, 2016, 88, 713. (Glossary of terms used in developmental and reproductive toxicology (IUPAC Recommendations 2016)) on page 783 [Terms] [Paper]