Which one is the specific type of milk that is produced in a lactating mother and is essential for the development of an immune response in a human newborn?

Colostrum is the first form of breastmilk that is released by the mammary glands after giving birth. It’s nutrient-dense and high in antibodies and antioxidants to build a newborn baby’s immune system. It changes to breast milk within two to four days after your baby is born.