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Infant formula An infant being fed from a baby bottle. Infant formula, also called baby formula, simply formula (American English), formula milk, baby milk or infant milk (British English), is a manufactured food designed and marketed for feeding to babies and infants under 12 months of age, usually prepared for bottle-feeding or cup-feeding from powder (mixed with water) or liquid (with or ...
The first commercial formulas. In 1846, Liebig, an acclaimed German chemist, had described all living tissue, including food, as being composed of different proportions of fats, carbohydrates and ...
Human fertilization is the union of an egg and sperm, occurring primarily in the ampulla of the fallopian tube. [1] The result of this union leads to the production of a fertilized egg called a zygote, initiating embryonic development.
Breastfeeding has a number of benefits to both mother and baby that infant formula lacks. [5] [8] Increased breastfeeding to near-universal levels in low and medium income countries could prevent approximately 820,000 deaths of children under the age of five annually. [9]
A female who has never carried a pregnancy beyond 20 weeks is nulliparous and is called a nullipara or para 0. [10] A female who has given birth once is primiparous and is referred to as a primipara or primip. A female who has given birth two, three, or four times is multiparous and is called a multip.
Overall, the sticky, thick, yellow liquid called colostrum has many benefits for a newborn baby which can be only provided to the baby through breastfeeding. [citation needed] Breast milk also contains much more protein than cow's milk. It contains 60% protein whereas cow's milk contains only 40% protein. [10]
A preterm baby is born before the gestational age of 37 weeks. A pregnancy that lasts 41 weeks up to 42 weeks is called late-term and a pregnancy longer than 42 weeks is called post-term . [ 10 ] The general consensus is that a fetus is viable at 24 weeks, however, a live birth may occur earlier in gestation with the assistance from neonatal ...
The other product of meiosis is the second polar body with only chromosomes but no ability to replicate or survive. In the fertilized daughter, DNA is then replicated in the two separate pronuclei derived from the sperm and ovum, making the zygote's chromosome number temporarily 4n diploid .