KEY FOR QUIZ 2 INCUBATION Topic # 3136 Lucas Gabbard 1. What is the incubation period of a chicken egg? 21 days 2. What is the required temperature for incubation? 100 degrees F 3. What is candling? Why is it used? Checking the inside of the egg with a light to see embryo development (done in a dark area for best results). To see if the egg is fertile (after 3 days) and to see how long embryonic growth is (in eggs that incubation start is unknown) 4. What does incubation mean? Incubation is the process of hatching a fertilized egg by providing the right environment to stimulate and maintain embryo growth. 5. Will every egg hatch that is incubated? And why or why not? No, not every egg will hatch because not every egg is fertilized, it could be broken (minute fractures), too old (usually over 2 weeks), not viable or just not incubated under right conditions.