Doaa A. Z., S., M. A., A., A. R, A., Amira E., E. (2024). IMPACT OF CHROMATIC LIGHT ON DEVELOPMENT AND HATCHING OF ALEXANDRIA CHICKEN`S EMBRYOS. Egyptian Poultry Science Journal, 44(4), 517-526. doi: 10.21608/epsj.2024.406550
Soliman, Doaa A. Z.; Abaza, M. A.; Ali, A. R; Eldlebshany, Amira E.. "IMPACT OF CHROMATIC LIGHT ON DEVELOPMENT AND HATCHING OF ALEXANDRIA CHICKEN`S EMBRYOS". Egyptian Poultry Science Journal, 44, 4, 2024, 517-526. doi: 10.21608/epsj.2024.406550
Doaa A. Z., S., M. A., A., A. R, A., Amira E., E. (2024). 'IMPACT OF CHROMATIC LIGHT ON DEVELOPMENT AND HATCHING OF ALEXANDRIA CHICKEN`S EMBRYOS', Egyptian Poultry Science Journal, 44(4), pp. 517-526. doi: 10.21608/epsj.2024.406550
Doaa A. Z., S., M. A., A., A. R, A., Amira E., E. IMPACT OF CHROMATIC LIGHT ON DEVELOPMENT AND HATCHING OF ALEXANDRIA CHICKEN`S EMBRYOS. Egyptian Poultry Science Journal, 2024; 44(4): 517-526. doi: 10.21608/epsj.2024.406550
IMPACT OF CHROMATIC LIGHT ON DEVELOPMENT AND HATCHING OF ALEXANDRIA CHICKEN`S EMBRYOS
1Poult. Prod. Dep., Fac. of agric., Alexandria Uni., Egypt
2zool.Dep., Fac.of Sci., Assiut Uni., Egypt
Abstract
Numerous studies have shown the effects of light wave length on the performance of birds in experimental assays; however, we chose to assess the effects of various color lights using light-emitting diodes (LED) on Alexandria chicks during the incubation period to investigate their effects on the morphological, developmental, and hatching traits in addition to the concentration of growth hormone during the hatching period. The experiment was conducted in three groups, totaling 1800 eggs, with the eggs being distributed equally among the groups: the first group of eggs was incubated under white light for 12 hours followed by 12 hours of LED lighting, the second group of eggs was exposed to green light (G2) for 12 hours followed by 12 hours of darkness, and the third group of eggs was incubated for 24 hours of complete darkness. From the obtained results, white and green light had significant increase in morphological traits during incubation period especially at 12th and 18thdays. On the other hand, at hatch (21th day) green group showed highly significant difference for values of Wing length (4.78a cm) and Hind limblength (7.74a cm) compared with white and dark groups. Moreover, Compared to the green and dark groups, the white group's head height (2.14 cm) was the highest. additionally, as compared to chicks exposed to darkness during incubation, Alexandria chicks showed a notable improvement in their scientific hatchability. The findings also showed that the unhatched egg characteristic was significantly lower in the green group (2.7%) than in the dark group (6.3%), and that there were no unhatched eggs in the white group. Additionally, the early embryonic mortality percentages of Alexandrian eggs are decreased by green and white light. Growth hormone levels during the development of embryos were discovered to be highly significant; on the 12th day, embryos exposed to green light were reported to have the highest level (0.796 ng/ml); on the 18th day, however, the highest level was observed in embryos exposed to white light (0.520 ng/ml). Previous findings indicate that white or green.
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