twelve-day-old mutant brindled mice that exhibited signs of copper deficiency were compared to their normal brothers as well as to age-matched suckling mice that were copper deficient ( -cu ) because their dams were consuming a copper-deficient diet throughout gestation and lactation , and a fourth group of copper-supplemented ( + cu ) suckling mice that served as dietary controls .
C0009968
copper
C0032961
gestation