نتایج جستجو برای: gumboro disease

تعداد نتایج: 1490133  

Journal: :Journal of the Hellenic Veterinary Medical Society 2017

Journal: :Revue scientifique et technique 2000
T P van den Berg N Eterradossi D Toquin G Meulemans

Infectious bursal disease (IBD) (Gumboro disease) has been described throughout the world, and the socio-economic significance of the disease is considerable world-wide. Various forms of the disease have been described, but typing remains unclear, since antigenic and pathotypic criteria are used indiscriminately, and the true incidence of different types is difficult to determine. Moreover, the...

Journal: :Archives of Veterinary Medicine 2008

2016

Infectious bursal disease (also known as IBD, Gumboro Disease, Infectious Bursitis and Infectious Avian Nephrosis) is a highly contagious disease of young chickens caused by infectious bursal disease virus (IBDV), characterized by immunosuppression and mortality generally at 3 to 6 weeks of age. The disease was first discovered in the USA, near the town of Gumboro, Delaware in 1962. It is econo...

Journal: :Poultry 2022

Infectious bursal disease (IBD), caused by an Avibirnavirus, belonging to the family Birnaviridae, is immunosuppressive that affects 3–6-week-old chickens, resulting in clinical or subclinical infection. Although occurs turkeys, ducks, guinea fowl, and ostriches can be also infected. IBD virus (IBDV) causes lymphoid depletion of bursa, which responsible for severe depression humoral antibody re...

Journal: :تحقیقات دامپزشکی 0
منصور میاحی گروه علوم درمانگاهی، دانشکده دامپزشکی دانشگاه شهید چمران اهواز، اهواز، ایران فروغ طلازاده گروه علوم درمانگاهی، دانشکده دامپزشکی دانشگاه شهید چمران اهواز، اهواز، ایران حسن اله دادی ورزنه دانش آموخته دانشکده دامپزشکی، دانشگاه شهید چمران اهواز، اهواز، ایران

background: comparison between infectious bursal disease vaccines. objectives: comparison between foreign and iranian intermediate uncloned gumboro vaccines on feed conversion ratio. methods: three hundred and thirty day-old chicks were purchased and for determination of vaccination time by deventer formula, thirty chicks were randomly bled and the remaining chicks divided into 3 equal groups, ...

2004
J Ignjatovic

The primary feature of vvIBDV is the ability to induce high mortality. Mortality ranges from 5% – 25% in broilers and 30% – 70% in layers. Surviving birds are severely affected with a high condemnation rate. vvIBDV induces clinical signs similar to Gumboro disease, which is induced by classical virulent strains of IBDV, except that the disease is more pronounced and acute in individual birds an...

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