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:If feed efficiency for egg production is defined as…The least important factor for successful incubation…Batubo sold 6 eggs at the price for which he bought…If all the unsold eggs were later sold on 7th June…The incubation period for turkey is?