Umdlwane yinja encane. Eminye imidlwane ingaba nesisindo esingu-1-1,5 kg (1-3 lb), kanti yona emikhulu ingahle ibe nesisindo esingama-7-11 kg (15-23 lb). Yonke imidlwane enempilo ikhula ngokushesha ngemuva kokuzalwa. Umbala wejazi lomdlwane ungashintsha njengoba imveku ikhula, njengoba kuvame ukubonakala ezinhlotsheni ezinjengeJ Yorkshire Terrier. I-Puppy ibhekisisa ngqo ezinjeni ezincane, ngenkathi imidlwane ingahle isetshenziselwe ezinye izilwane ezinjengezimpisi, uphawu, izindlulamthi, izingulube ezisegazini, amagundane noma oshaka. Izalelwe ngemuva kwezinsuku ezingama-63 zokumitha, imidlwane ivela emgodini olunywe bese idliwe yinja yenja. Izingane ziqala ukuncela ngokushesha. Uma udoti udlula imidlwane eyisithupha, ikakhulukazi uma kunamamaki eyodwa noma amaningi asobala, ukungenelela komuntu ekondleni imidlwane enamandla kuyadingeka ukuqinisekisa ukuthi abagijimayo bathola ukondliwa okufanele nokunakwa okuvela kumama. Njengoba zifinyelela inyanga eyodwa yobudala, imidlwane kancane kancane ilunyulwa bese iqala ukudla ukudla okuqinile. Umama angahle akhiphe ukudla okugaywe ngokwengxenye noma akuyeke kudle okuqinile. Umama uvama ukwenqaba ngalesi sikhathi, yize kwesinye isikhathi angavumela ukuba anikeze induduzo. Ekuqaleni, imidlwane isebenzisa isikhathi sayo esiningi sokulala nokuphumula kokudla. Ngokwemvelo bahlanganisa ndawonye babe yinqwaba futhi bakhathazeke uma behlukaniswa nokuxhumana nabantu ababambele nabo, kude nebanga elifushane. Imidlwane izalwa inomqondo osebenza ngokugcwele wephunga. Bahluleka ukuvula amehlo abo.