Zagazig University Digital Repository
Home
Thesis & Publications
All Contents
Publications
Thesis
Graduation Projects
Research Area
Research Area Reports
Search by Research Area
Universities Thesis
ACADEMIC Links
ACADEMIC RESEARCH
Zagazig University Authors
Africa Research Statistics
Google Scholar
Research Gate
Researcher ID
CrossRef
Respiratory and Reproductive Impairment of Commercial Layer Chickens After Experimental Infection with Gallibacterium anatis Biovar haemolytica
Faculty
Veterinary Medicine
Year:
2020
Type of Publication:
ZU Hosted
Pages:
536-541
Authors:
Amal Anis Mahdi Eid
Staff Zu Site
Abstract In Staff Site
Journal:
Avian diseases aaap
Volume:
64
Keywords :
Respiratory , Reproductive Impairment , Commercial Layer Chickens
Abstract:
The prevalence of Gallibacterium anatis in poultry production has increased over the last two decades. However, only a few studies have explored the pathogenicity of this bacterium in commercial layer chickens. This trial studied the aspects of the pathogenicity of a Gallibacterium anatis biovar haemolytica local Egyptian isolate (previously registered as strain B14 with GenBank accession no. KJ026147). We used 500 base pairs of a 16S ribosomal RNA gene and the 16S-23S ribosomal RNA intergenic spacer, partial sequence in an experimental infection trial in commercial White Shaver layer chickens aged 19 wk. The hens were divided into three groups of 40 birds each. The hens in Groups 1 and 2 were experimentally infected through the intranasal (IN) and intravenous (IV) routes, respectively, with a dose of 0.2 ml/bird containing 1.2 × 109 colony-forming units/ml. In contrast, Group 3 was kept as a noninfected control group. Both IN and IV infections resulted in a delayed egg laying for 1 wk and a significant (P ≤ 0.05) drop in egg production by 7.81% and 10.28% compared with the control group over 7 wk. Severe lesions in the form of hemorrhagic pneumonia, catarrhal tracheitis, ovarian follicle and oviductal regression, and septicemia were evident on necropsy, demonstrating the pathogenicity of G. anatis as a primary pathogen.
Author Related Publications
Amal Anis Mahdi Eid, "Avian paramyxovirus type 1 in Egypt: Epidemiolog, Evolutionary, Perspective, and Vaccine Approach", Frontiers, 2021
More
Amal Anis Mahdi Eid, "Introduction and enzootic of A/H5N1 in Egypt: Virus evolution, pathogenicity and vaccine efficacy ten years on", Elseiver, 2016
More
Amal Anis Mahdi Eid, "Occurrence of Duck virus enteritis in Sharkia (Egypt). Zag. Vet. J.", لايوجد, 1900
More
Amal Anis Mahdi Eid, "): Infectious bronchitis virus infection in Egypt International Symposium on infectious bronchitis and pneumovirus ", لايوجد, 1900
More
Amal Anis Mahdi Eid, "): Pox virus infection among some avian species in Sharkia Province. 4th ", لايوجد, 1900
More
Department Related Publications
Amal Anis Mahdi Eid, "Outbreaks of infectious laryngotracheitis in native hybrid", لايوجد, 1900
More
Ibrahiem Abdelrahman Ibrahiem Ghanem, "التقييم المعملي للقاحات مرض التهاب غدة فابريش ضد فيروس المرض الضاري", لايوجد, 1900
More
Ibrahiem Abdelrahman Ibrahiem Ghanem, "دراسات عن عترات الباستيريلا مالتوسيدا في مزارع البط جدارة التحصين الذاتي", لايوجد, 1900
More
Ahmed Mohamed Alsadek Masoud Hegazyi, "The picture of immune response in chickens vaccinated with ND vaccines ", لايوجد, 1900
More
Ahmed Mohamed Alsadek Masoud Hegazyi, "Viral agents associated with rertarded growth in broiler chickens. AM. Hegaz", لايوجد, 1900
More
جامعة المنصورة
جامعة الاسكندرية
جامعة القاهرة
جامعة سوهاج
جامعة الفيوم
جامعة بنها
جامعة دمياط
جامعة بورسعيد
جامعة حلوان
جامعة السويس
شراقوة
جامعة المنيا
جامعة دمنهور
جامعة المنوفية
جامعة أسوان
جامعة جنوب الوادى
جامعة قناة السويس
جامعة عين شمس
جامعة أسيوط
جامعة كفر الشيخ
جامعة السادات
جامعة طنطا
جامعة بنى سويف