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# The problem of borders in the Arab world
# Political border problems in the Arabian Peninsula
# The problem of defining literary genres
# Arab border problems
# The problem of borders in the land of the Maghreb between the Romans and the Byzantines
# Border problems in the Arabian Peninsula
# Political border problems
# The problem of the border between Qatar and Bahrain
# The Moroccan-Algerian border problem
# The problem of the border between the UAE and Saudi Arabia
# Border problems in the Arab Gulf region
# Lebanese maritime border problems
# Problems that prevent pregnancy
# The problem of borders in the Arab Mashreq
# Problems setting exchange rate and currency valuation
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# specific shape of molecules
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Source: wikipedia.org
شكل حاد (Info)
تسببه عترة ضارية جدا وتكون فيه الطيور:
- منبطحة.
- فاقدة للشهية (ينخفض استهلاك الطعام إلى النصف).
- إسهال.
- تضاعف استهلاك الماء ثلاث مرات.
- خلال يومين أو ثلاثة، نفوق 20 إلى 50% من الطيور بالحظيرة.
- تختفي الاضطرابات فجأتا في خلال ثمانية أيام.
- التلقيحات لا تجدي نفعا والأسراب الموالية تصاب بالعدوى حتى بعد تطهير الحظائر.
