Infectious bronchitis, Newcastle disease, infectious laryngotracheitis, avian influenza, and pneumovirus are the viruses that more frequently affect the respiratory tract of chickens, because of their tendency to change its antigenic properties Infectious laryngotracheitis has appeared in the broiler industry as a serious disease. Newcastle is a highly contagious, disease in which all birds in ...

to detect the presence of infectious bronchitis virus (ibv) in infected allantoic fluid (af) of spf embryonated eggs rapid hemagglutination (ha) activity after treatment with neuraminidase enzyme was used. twenty ibv suspected materials were inoculated in spf embryonated eggs via chorioallantoic cavity. harvested afs were treated with neuraminidase enzyme and the presence of ibv was detected by...

background: avian infectious bronchitis (ib), with avianinfectious bronchitis virus (ibv) as the causing agent, is a ubiquitous endemicdisease of the chicken with devastating effects on its industry. a viralmembrane surface protein called s  notonly induces neutralizing antibodies but also plays an important role in virusbinding and entry to host cells. technically, s1 protein gene sequencing a...

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 pla...

The recent finding that the E1 glycoproteins of murine coronaviruses contain only O-linked oligosaccharides suggested that this unusual modification might be a distinguishing feature of coronaviruses and might play an essential role in the life cycle of this family of viruses. To examine these possibilities, we analyzed the oligosaccharide moieties of the membrane proteins of the avian coronavi...

The majority of the bioactives under investigation were predicted to target TNF receptor-associated factor 5 in Janus kinase/signal transducers and activators transcription pathway. Similarly, druglikeness prediction identified vitexilactone possess highest score, i.e., 0.88. Furthermore, proteins targeted pathway also regulate multiple pathways, ErbB, AGE-RAGE, NF-kappa B, Measles, insulin, mT...

An indirect enzyme–linked immunosorbent assay (ELISA) was developed for screening of antibody to avian infectious bronchitis virus (IBV). Antigen was prepared from whole-purified IBV Massachusetts serotype (BR 801 strain). Optimum dilution with minimum background for antigen concentration, rabbit anti-chicken conjugate and sera in developed ELISA was determined 0.1μg/ml, 1:3000 and 1:100, respe...