ANATOMY

Detailed explanation-1: -Incubating chicken eggs is a 21-day process and requires an egg incubator to help control temperature, humidity and egg turning.

Detailed explanation-2: -Day 21-for the most part-is hatch day, although some chicks hold on and don’t hatch exactly on time. Chicks will hatch when they’re fully developed, and when the yolk has been absorbed into the chick’s body.

Detailed explanation-3: -Eggs hatched by the hen can take up to 25 days. The sweet spot for an egg to hatch is the same for the incubator, 20 to 21 days. The chicks can pip as early as 18 days old.

Detailed explanation-4: -A chick emerges from a fertile egg after twenty-one days of incubation. The germinal disc is visible on the surface of the yolk. The development of the chick begins in the single cell formed by the union of two parental cells, egg and sperm, in the process known as fertilization.

Detailed explanation-5: -The normal incubation time of most chickens is 21 days to 21 days, 6 hours. Table 3 shows normal incubation times for other birds. Incubation time may vary according to temperature of weather and incubator, size of egg, fertility of egg and vigor of the embryo, and a host of other factors.