Bursa of Fabricius containing virus-like particles. An electron microscopic observation.
نویسندگان
چکیده
منابع مشابه
Histological and Histochemical Studies of Harderian Gland, Lacrimal Gland and Bursa of Fabricius in Mulard Ducks (anas Sterilis) with Chlamydial Infection
Specimens from the Harderian gland, the lacrimal gland and bursa of Fabricius in ducks with chlamydiosis were processed by the classical histological methods and permanent preparations were obtained. On single and serial histological cross-sections from material fixed in non-aqueous fixator, histochemical tests for PAS reactivity, staining with alcian blue at pH 1.0 and 2.5 as well as staining ...
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Electron microscopic studies of the bursa of Fabricius during the 15th and 16th day of embryonic development in the chick have shown the following findings in the submicroscopic structure of the cellular elements of the lympho-epithelial follicles. In the medulla, basal endodermal epithelial cells undergo mitosis and differentiation into lymphoblasts. During this transformation, there is a redu...
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Virulent Newcastle disease has threatened the Mexican poultry industry since 1946. Two Mexican virulent strains belonging to the Chimalhuacan (Quail2006) and Torreon (Chicken2000) lineages of genetic group V, as well as the ancient Mexican strain named Queretaro and a Beaudette C-like US strain (genotype II) were tested by pathogenesis analysis in commercial 5 weeks old broiler chickens, compar...
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Today, the use of oak as a replacement feed in poultry diets is well documented. However, oak contains polyphenol compounds (tannins) as antinutrient factors resulted in limited usage in the poultry rations. Generally, consumption of feeds containing tannin could affect gene expression level of immune system. Therefore, the aim of this study was to investigate the effect of different levels of ...
متن کاملHistologic Lesions of Thymus and Bursa of Fabricius in Commercial Broiler Chickens Inoculated with H9N2 Avian Influenza Virus
Low pathogenic avian influenza (H9N2) is of major concern for the poultry industry especially in Iran, as the virus can spread rapidly in and between flocks, causing high mortality and severe economic losses. The aim of this study was to determine the pathogenicity of H9N2 avian influenza virus in thymus and bursa of Fabricius of commercial broiler chickens, so we studied the histologic lesions...
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ورودعنوان ژورنال:
- The Japanese journal of veterinary research
دوره 18 1 شماره
صفحات -
تاریخ انتشار 1970