Final answer:
During the first few days after giving birth, the new mother's breasts produce colostrum rather than milk.
Step-by-step explanation:
The breasts of a new mother produce colostrum during the first few days after giving birth, rather than milk. Colostrum is a thick, yellowish substance that is high in protein and contains immunoglobulins that help boost the newborn's immune defenses. It provides hydration and essential nutrients to the newborn in the initial days of life. Only a small volume of colostrum is produced, but it is sufficient for the newborn's needs.