Procedure using dung flies of the order Diptera where a test substance is mixed with bovine feces to which eggs of the fly are added; number, sex, and morphology are determined when the last adult has emerged.
Source: PAC, 2016, 88, 713. 'Glossary of terms used in developmental and reproductive toxicology (IUPAC Recommendations 2016)' on page 745 (https://doi.org/10.1515/pac-2015-1202)