During incubation of chicken eggs; the first candling is usually carried out after by Sunday | Apr 14 | Animal Husbandry WAEC | 0 comments A. twenty-one days B. eighteen days C. ten days D. six days Correct Answer: Option D – six days Users Also Read These:SS2 First Term Food and Nutrition Lesson Note – Food…During the incubation of fertilized poultry egg,…The incubation period of a chicken egg is?A certain savanna grasshopper changes colour from…The experiment that showed that atoms have tiny…