Influence of spraying different solutions at different incubation periods on hatchability parameters of local Iraqi's eggs.

This study was carried out on 26/5/2019 until 17/6/2019 At local hatchery (College of Agriculture / University of Karbala), to investigate of Different spraying protocols on the eggs of local chicken with the eggs of local chicken with different solutions at variant periods on embryonic mortality during incubation period and on the hatchability of setting eggs. 600 eggs (55 g weight ) used in this study from local chicken divided into three groups each group sub divided into 5 groups spraying by distilled water, olive oil, ethanol alcohol 70%, egg albumen and not treated groups that represented as GW, GO,GE,GC. first group G1 (n = 120) was sprayed at the first day of incubation period, the second group G2 was spraying at beginning of the 2nd week of incubation at aged 7 days, the third group G3 in which the eggs was sprayed at the beginning of 3rd week of incubation at aged 14 days. The results recorded significant reduction of early embryonic mortality in G1 and GC The statistical analysis of the in all groups spraying by ethanol alcohol GE, water group GW and control groups GC. At 14 days of the incubation period, there were no significant differences. At 15-21 days of incubation period, late Embryonic mortality was not recorded in groups treated olive oil, water and albumen when compared with groups treated with alcohol or control. Conclusion, that spraying Iraqi local eggs with water and olive oil at 14 days of incubation period caused high percentages of hatchability of setting and fertilized eggs recorded 100% compared with different materials that used in current research.