The effect of both pre-incubation dipping eggs in vitamin C and cooling eggs during incubation period on embryonic and hatchability parameters in two local chicken strains
Abstract: The present study was carried out to investigate the effect of pre-incubation dipping eggs in different concentrations vitamin C (AA) solution for 2 minutes and cooling eggs at 24ºC for 6 hrs at the 16th day of incubation on embryonic and hatchability parameters in two local strains of chickens. A total number of 4320 fertile hatching eggs were collected from Dokki 4 and Dandarawi local strains at 30 weeks of age Eggs from each strain (2160 egg) were randomly divided into four treatments. The sequence of the four treatments was as follows:-
1 -Control (non dipped eggs).
2 -Eggs dipped into distilled water (0.0g AA/L) for 2 minutes
3 -Eggs dipped into AA solution (5.0g AA/L) for 2 minutes.
4 -Eggs dipped into AA solution (10.0g AA/L) for 2 minutes.
At the 16th day of incubation each treatment of the mentioned above was equally divided in to two groups, the first was left as a control (non cooled) while the second was cooled at 24.C for 6 hours
The obtained results could be summarized as follows :- (1) Improvement in incubation traits were recorded for the eggs of Dokki4 strain dipped in 5.0g AA/L for 2 minutes at 0 day of incubation and those cooled at 24ºC for 6 hrs at the16th day of incubation .(2) Pre-incubation Dipping eggs in 5.0g AA/L for 2 minutes may be alternative method to maximize the hatchability% which decrease embryonic mortality during hatching process in eggs of Dokki4 and Dandarawi strains without adverse effects. (3) Cooling eggs at 24ºC for 6 hrs at the 16th day of incubation significantly increased hatchability% , decreased embryonic mortality and caused delaying in hatching time in eggs of Dokki4 and Dandarawi strains. (4) Vitamin C is a weak acid and has the ability of diluted acids 10 interact with egg shell which may be led to increase egg shell conductance which consequently might be enhanced the movement of water vapor and CO2 across the shell and change the buffering capacity of albumin which resulted in increasing hatchability (5) Dandarawi strain was inferior in incubation traits compared to Dokki4 strain so more breeding selection plans are required for enhancing the performance of Dandarawi strain.
Publication year 2011
Pages 393-405
Availability location معهد بحوث الانتاج الحيوانى- شارع نادى الصيد- الدقى - الجيزة
Availability number
Organization Name
City الاسكندرية
serial title Egypt. Poult. Sci. Vol (31) (II): (393-405)
ISSN 1110-5623
Author(s) from ARC
External authors (outside ARC)
    خيرى عبد الحميد محمد جامعة المنيا
    عطيات حسين البغدادى جامعة المنيا
    مصطفى على حسن سليمان جامعة المنيا
    ناصر مصطفى عبد العليم مدرية الزراعة -بنى سويف
Agris Categories Animal physiology - Reproduction
AGROVOC
TERMS		 Ascorbic acid. Egg hatchability. Eggs.
Proposed Agrovoc pre-incubation dipping;hatchability parameters;embryonic parameters;
Publication Type Journal
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