Epidemiological surveillance of some avian respiratory viral diseases in broiler chickens
المؤلفون المشاركون
al-Nahhas, Abir Fikri
al-Shal, Nahid A.
Sadiq, Mahmud E.
Awad, Ashraf M.
Abd al-Salam, Rahmah A.
المصدر
Alexandria Journal of Veterinary Sciences
العدد
المجلد 61، العدد 1 (30 إبريل/نيسان 2019)، ص ص. 185-194، 10ص.
الناشر
جامعة الإسكندرية كلية الطب البيطري
تاريخ النشر
2019-04-30
دولة النشر
مصر
عدد الصفحات
10
التخصصات الرئيسية
الملخص EN
-The present study aimed to specify the most important respiratory viral diseases affecting broiler chickens under Egyptian conditions.
Forty four broiler chicken flocks were investigated in three governorates (Alexandria, El-Behera and Kafr El-sheikh) that showed high mortality rate with respiratory manifestations and/or diarrhea.
The collected samples (trachea and lungs homogenates) were examined for Avian Influenza viruses (AIv) (H5&H9), Newcastle Disease virus (NDv) and Infectious Bronchitis virus (IBv) through isolation in specific pathogen free (SPF) eggs and identification by slide hemagglutination test and Real time reverse transcriptase polymerase chain reaction (RRT-PCR).
The results revealed that the highest detection rate was NDv (20/44) with positivity percent (45.46%), 7 flocks out of 44 were positive for AI H9 (15.90%), while 3 flocks (3/44) were positive for AI H5 (6.82%), on the other hand 4 flocks (4/44) were positive for IBv (9.10%).
Sequencing and phylogenetic analysis of F gene of selected 8 NDv isolates, they were related to genotype VII, also sequencing for haemagglutinin (HA) gene of AIv isolates showed that two isolates belonged to H5N8 highly pathogenic avian influenza (HPAI) (clade 2.3.4.4.b) and one isolate belonged to H5N1 HPAI clade 2.2.1.2, while two selected H9 isolates were related to H9N2 low pathogenic avian influenza (LPAI) group B.
On the other hand, sequencing of S1 gene for one selected IBv isolate was related to EGY variant II.
So, continuous surveillance of different respiratory diseases that represent a large economic threat for poultry industry should be maintained to facilitate the possible protocols to prevent and control these diseases.
نمط استشهاد جمعية علماء النفس الأمريكية (APA)
al-Nahhas, Abir Fikri& al-Shal, Nahid A.& Sadiq, Mahmud E.& Awad, Ashraf M.& Abd al-Salam, Rahmah A.. 2019. Epidemiological surveillance of some avian respiratory viral diseases in broiler chickens. Alexandria Journal of Veterinary Sciences،Vol. 61, no. 1, pp.185-194.
https://search.emarefa.net/detail/BIM-1347949
نمط استشهاد الجمعية الأمريكية للغات الحديثة (MLA)
al-Shal, Nahid A.…[et al.]. Epidemiological surveillance of some avian respiratory viral diseases in broiler chickens. Alexandria Journal of Veterinary Sciences Vol. 61, no. 1 (Apr. 2019), pp.185-194.
https://search.emarefa.net/detail/BIM-1347949
نمط استشهاد الجمعية الطبية الأمريكية (AMA)
al-Nahhas, Abir Fikri& al-Shal, Nahid A.& Sadiq, Mahmud E.& Awad, Ashraf M.& Abd al-Salam, Rahmah A.. Epidemiological surveillance of some avian respiratory viral diseases in broiler chickens. Alexandria Journal of Veterinary Sciences. 2019. Vol. 61, no. 1, pp.185-194.
https://search.emarefa.net/detail/BIM-1347949
نوع البيانات
مقالات
لغة النص
الإنجليزية
الملاحظات
رقم السجل
BIM-1347949
قاعدة معامل التأثير والاستشهادات المرجعية العربي "ارسيف Arcif"
أضخم قاعدة بيانات عربية للاستشهادات المرجعية للمجلات العلمية المحكمة الصادرة في العالم العربي
تقوم هذه الخدمة بالتحقق من التشابه أو الانتحال في الأبحاث والمقالات العلمية والأطروحات الجامعية والكتب والأبحاث باللغة العربية، وتحديد درجة التشابه أو أصالة الأعمال البحثية وحماية ملكيتها الفكرية. تعرف اكثر