| Titles |
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English :
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Ultra structure of eggshell, egg weight loss and hatching traits of Japanese quail varying in eggshell color and pattern using image analysis
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Arabic :
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التركيب الدقيق لقشرة البيضة الفقد في وزن البيضة ، و صفات الفقس للسمان اليابانى المختلف في لون و نمط قشرة البيضة مستخدما تحليل الصور
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| Abstract |
This study was carried out to investigate the ultra structure of eggshell, egg weight loss% and hatching traits of Japanese quail varying in eggshell color and pattern analyzed by image analysis. A total of 2900 eggs were selected from the four groups of eggshell color and pattern (1st group [light eggs (none or rarely of very small spots)], 2nd group [dotted eggs (small and much spots)], yd group (spotted eggs (large and many spots)] and 4th group [dark eggs (very large and few spots)] to perform two consecutive hatches of eggs collected for 12 days consecutive each. Eggs of the first hatch were stored for 11 days at room temperature (ranged from 21-25°C and relative humidity 50-60 %) and the eggs of the second hatch were stored for 11 days in a refrigerated room (17°C and 70 % relative humidity). The results of the present study are as follows:
- The palisade and mammillary layers were not clear in light eggshell group compared to the other types of eggshell and this light eggshell color was the worst group - Light color eggs group had the highest values of red, green, blue, hue and lightness, egg weight loss % at different periods of storage and embryonic mortality % (mid and late) and it had the lowest values of hatchability %, hatchability/fertile eggs % (H/F %), chick weight and chick weight %.
- Dark color eggs group had the highest values of hatchability % and H/F %. It had the lowest values of red, green, blue, hue and lightness, egg weight loss % at different periods of storage and early embryonic mortality %.
- Egg weight loss% increased with increasing time and temperature of pre-incubation storage - Hue of Japanese quail eggshell positively correlated with each of egg weight loss % and embryonic mortality (mid and late) but it negatively correlated with each of hatchability % and H/F%. Saturation of quail eggshell positively correlated with late embryonic mortality % and negatively with H/F %. The lightness of quail eggshell positively correlated with each of egg weight loss %, fertility % and early embryonic mortality and negatively with H/F %. It can be concluded that, should be exclude the females producing light color eggs which had inferior eggshell and lowest hatchability %. Selection for dark eggshell color eggs using image analysis.
Key Words: Quail, eggshell ultra structure, eggshell color, image analysis, hatching traits.
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| Publication year |
2013
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| Pages |
1-17
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| Availability location |
معهد بحوث الانتاج الحيوانى-شارع نادى الصيد- الدقى- الجيزة
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| Availability number |
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| Organization Name |
Animal Production Research Institute (APRI)
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| serial title |
Egyptian Poultry Science Journal
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| ISSN |
1110-5623
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| Author(s) from ARC |
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| External authors (outside ARC) |
حنان عبد الله حسن
جامعة الفيوم
شعبان سعد النسر
جامعة الفيوم
جلال امين عرام
جامعة الفيوم
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| Agris Categories |
Animal physiology - Nutrition
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AGROVOC
TERMS |
Image analysis.
Quails.
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| Proposed Agrovoc |
hatching traits;eggshell color;eggshell ultra structure;
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| Publication Type |
Journal
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