1. Some factors affecting downgrading in eggs, especially damage in transit;Anderson;Br. Poult. Sci.,1969
2. Hatchability and early chick growth potential of broiler breeder eggs with hairline cracks;Barnett;J. Appl. Poult. Res.,2004
3. Broiler Production Goals - Important Numbers;Butcher,2018
4. Correlations between cracked eggs in a hatchery and eggshell quality characteristics;Campo;Arch. Geflügelkd.,1992
5. Cobb breeder management guide. 2020. Accessed March 2021. https://www.cobb-vantress.com/resource/management-guides.