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El-Menawey, M. (2025). EFFECT OF HEAT TREATMENTS DURING HATCHING EGGS STORAGE ON HATCHABILITY TRAITS AND CHICK QUALITY. Egyptian Poultry Science Journal, (), -. doi: 10.21608/epsj.2025.18486.1048
Mohamed Abdel-Rahman El-Menawey. "EFFECT OF HEAT TREATMENTS DURING HATCHING EGGS STORAGE ON HATCHABILITY TRAITS AND CHICK QUALITY". Egyptian Poultry Science Journal, , , 2025, -. doi: 10.21608/epsj.2025.18486.1048
El-Menawey, M. (2025). 'EFFECT OF HEAT TREATMENTS DURING HATCHING EGGS STORAGE ON HATCHABILITY TRAITS AND CHICK QUALITY', Egyptian Poultry Science Journal, (), pp. -. doi: 10.21608/epsj.2025.18486.1048
El-Menawey, M. EFFECT OF HEAT TREATMENTS DURING HATCHING EGGS STORAGE ON HATCHABILITY TRAITS AND CHICK QUALITY. Egyptian Poultry Science Journal, 2025; (): -. doi: 10.21608/epsj.2025.18486.1048

EFFECT OF HEAT TREATMENTS DURING HATCHING EGGS STORAGE ON HATCHABILITY TRAITS AND CHICK QUALITY

Articles in Press, Accepted Manuscript, Available Online from 19 May 2025  XML
Document Type: Original Article
DOI: 10.21608/epsj.2025.18486.1048
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Author
Mohamed Abdel-Rahman El-Menawey email
Associate Professor of Poultry Management, Faculty of Agriculture, Cairo University
Abstract
This study aimed to investigate the efficacy of short periods of incubation during egg storage (SPIDES) in the restoration of hatchability, embryonic mortality; incubation time and chick quality of broiler hatching eggs stored for 15 days. A total of 15510 hatching eggs were collected from 49-wk-old flock of Arbor Acres broiler breeder. The eggs were divided into four groups. First group stored for 5 days without heat treatment (fresh egg). Second group stored for 15 days and heated one time at the fifth day of storage (SPIDES1). Third group stored for 15 days and heated two times, at fifth and tenth days of storage (SPIDES2). Whereas, the forth group were stored for 15 days without heat and served as negative control (Control). The heat treatment was at 32oC and 55-60% relative humidity for 6 hours. The results explained that both heat treatments improved early embryonic mortality percentage. Prolonged storage reduced hatchability and visible fertility of untreated eggs from 82.18 to 64.06% and from 90.36 to 83.61 respectively. The improvement in visible fertility was almost the same in both SPIDES group. Incubation time was increased by almost 12 and 10 hours in negative control compared with fresh egg or heat treatment group, respectively. The contamination egg increased with long storage period. The relative yolk sac weight of newly hatched chicks increased with the length of the pre-incubation storage period, but the heat treatment can restore this percentage to that in fresh eggs. The chick quality traits of negative control had the lowest values compared with other groups, but SPIDES could treatment improved those values and occupied intermediate. In conclusion, the present study reveals that SPIDES is an effective method to ameliorate the detrimental effects of long storage period on hatching eggs and chick quality.
Keywords
Keywords: hatching egg; storage; hatchability; embryonic mortality; chick quality
Main Subjects
Chicken
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