How many days does is used for incubation of an egg to release chick? by Sunday | Sep 3 | Biology JAMB | 0 comments A. 21 B. 22 C. 20 D. 23 Correct Answer: Option A – 21 Users Also Read These:The incubation period for turkey is?The count rate of radioactive material is 800…During the incubation of fertilized poultry egg,…A radioactive element has a half life of 4 days. The…The half life of a radioactive substance is 14 days.…