عنوان المقالة:التغيرات في الصفات الخارجية لبيض الدجاج خلال فترة ما قبل و بعد القلش Changes in External Egg Traits of Chickens during Pre- and Post-Molting Periods
احمد سامي شاكر | Ahmed Sami Shaker | 6735
- نوع النشر
- مقال علمي
- المؤلفون بالعربي
- شنكةبيري رؤوف عزيز، احمد سامي شاكر، شهلة محمد سعيد كركووكي
- المؤلفون بالإنجليزي
- Aziz SR, Shaker AS & Kirkuki SMS
- الملخص الانجليزي
- 481 fresh fertilized eggs of three Kurdish local chickens (Black with brown neck, White with shank feathering, and White with non-feathering shank) were collected at pre-molting (355 eggs) and post-molting (126 eggs) stages to evaluate external egg traits. A venine caliper was used to determine the length and breadth of eggs to calculate Shape index. Results indicated that egg weight increased in all genetic groups (P < 0.05) at post-molting stage compared with pre-molting stage. There was a significant difference in egg length between pre- and post-molting periods from the black chicken with brown neck and white chicken with shank feather, but not from the white chicken with non-feathering shank. Also, egg breadth was similar between pre- and post-molting periods from black with brown neck and white with shank feather, but was different from white with non-feathering shank. Shape index was also similar between pre- and post-molting periods for white with shank feather, but were significantly different (P < 0.05) for black with brown neck and white with non-feathering shank. The results of this study indicate that egg external traits improved during post-molting period than pre-molting, and variations between egg layers for external traits could be due to the genetic makeup.
- تاريخ النشر
- 23/06/2017
- الناشر
- Poultry Science Journal
- رقم المجلد
- 5
- رقم العدد
- 2
- ISSN/ISBN
- 2345-6604
- رابط DOI
- DOI: 10.22069/psj.2017.12373.1234
- الصفحات
- 9-13
- رابط الملف
- تحميل (70 مرات التحميل)
- الكلمات المفتاحية
- Local chicken, Natural molting, Egg external trait