SUPPRESSION OF AVIAN INFECTIOUS BRONCHITIS VIRUS REPRODUCTION BY SOME PLANT EXTRACTS
نویسندگان
چکیده
A variety of variants the avian infectious bronchitis virus creates certain difficulties in vaccination. Therefore, search for new methods suppressing reproduction is an important problem poultry industry. Avian acute highly contagious viral disease, mainly chickens, accompanied by damage to respiratory organs young animals and loss productivity adult laying hens. The exploitation medicinal plants topic both pharmaceuticals medicine general. Many viruses have developed resistance existing drugs, so it makes sense study that contain biologically active compounds are able suppress activity. purpose research show possibility using extracts some inhibit virus. It has been shown at a dose 3 4 μg/ml, plant Alnus incana, Hedysarum neglectum, Polygonum aviculare, Alhagi pseudalhagi 50% reproductive activity
منابع مشابه
Avian infectious bronchitis virus.
Infectious bronchitis virus (IBV) is prevalent in all countries with an intensive poultry industry, with the incidence of infection approaching 100% in most locations. Vaccination is only partially successful due to the continual emergence of antigenic variants. At many sites, multiple antigenic types are simultaneously present, requiring the application of multiple vaccines. Although many coun...
متن کاملEmergence of variant avian infectious bronchitis virus in India
Background: Infectious bronchitis virus (IBV) is the etiological agent of an acute and highly contagious disease. Infectious bronchitis (IB) affects chicken of all ages and poses major economic loses to the poultry industry worldwide. The continuous evolution of the spike protein (S1) of IBV is responsible for the prevalence of many serotypes/genotypes around the world. Multipl...
متن کاملCoronavirus avian infectious bronchitis virus.
Infectious bronchitis virus (IBV), the coronavirus of the chicken (Gallus gallus), is one of the foremost causes of economic loss within the poultry industry, affecting the performance of both meat-type and egg-laying birds. The virus replicates not only in the epithelium of upper and lower respiratory tract tissues, but also in many tissues along the alimentary tract and elsewhere e.g. kidney,...
متن کاملRibonucleoprotein of avian infectious bronchitis virus.
The ribonucleoprotein (RNP) of avian infectious bronchitis virus (IBV) was examined by electron microscopy after shadowing with carbon/platinum. Linear RNP strands up to 6.7 microns in length, from three IVB strains, were sensitive to both pancreatic RNase and to proteases. These strands were obtained from spontaneously disrupted complete particles but not from disrupted incomplete particles th...
متن کاملPathogenicity study of Iranian genotype of avian infectious bronchitis virus (IR-1)
Avian infectious bronchitis (IB) is a major cause of economic losses in poultry industry. The IB virus primarily affects respiratory tract, but various strains differ in their tropism for other target organs such as kidney and alimentary tract. The objective of this study was to estimate the pathogenicity of Iranian IBV variant (IR-1), which is limited exclusively to Iran. Specific pathogen fre...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: ?ylym ža?ne bìlìm
سال: 2023
ISSN: ['2305-9397']
DOI: https://doi.org/10.52578/2305-9397-2023-2-2-84-91