Conditii standard de gazduire pentru animale de dimensiuni mici obtinute natural sau modificate genetic:

Soareci: NMRI
                BalbC
                C57BL
Sobolani: LW (Lewis)
                  SD (Sprague Dawley)
                  BN (Brown   Norvegian)
                  DA (Dark Agouti)
                  WI (Wistar)
Iepuri New Zealand
La cerere: porci, oi, caini