The present invention relates to an apparatus comprising a baby bottle (2) and a bottle top attachment (4) coupled to the baby bottle (2) and having a connector (6) for a breast pump. The apparatus is characterized in that the bottle top attachment (4) comprises a measuring head (8) with a reservoir (10) for breast milk and in that the measuring head (8) comprises a sensor unit that is associated with the volume of the reservoir (10) and that enables determining a parameter of the milk expressed into the baby bottle.本發明關於一種設備，其包含嬰兒奶瓶(2)及連接到該嬰兒奶瓶(2)並具有用於吸乳器的連接器(6)之瓶頂接合件(4)。該設備的特徵在於，該瓶頂接合件(4)包含具有用於母乳的貯存器(10)之測量頭(8)，並且該測量頭(8)包含與該貯存器(10)的容積相關聯並能測定被擠入該嬰兒奶瓶中的乳汁的參數之感測器單元。
