Umhlobo onemilenze emine udla ngokufikelela kumphakamo kwi-25 ukuya kuma-45 cm. Ngoko ke yenye yeenja ezincinci ukuya kweziphakathi. Umhlobo onemilenze emine ufikelela kubunzima be-4 ukuya kwi-15 kilos. Ubukhulu obahlukeneyo inja enokufikelela kuyo bukwabizwa ngokuba yinto yokudlala (izinja ezincinci), i-miniature, kunye nemigangatho (abameli abakhulu bohlobo).
#1 Noko ke, kwahluke ngokupheleleyo kubantu ongabaziyo. I-Rat Terrier idla ngokukrokra kwaye igcinwe.
Yiyo loo nto efanelekile njengenja encinci yokulinda.
#2 Njengenja yokuqala yokuzingela iimpuku, kufuneka ulindele ukuba i-Rat Terrier ibe nethuku elinamandla lokuzingela.
#3 Umhlobo onemilenze emine ufanelekile ukugcinwa kwindlu yedolophu.
Kodwa ngokuqinisekileyo kuphela ukuba ufumana umthambo owaneleyo emoyeni omtsha - ngokukhethekileyo kwiipaki ezinkulu. Ukuhamba rhoqo ukuya ehlathini kufuneka kufakwe kwakhona.