background and aims: infectious laryngotracheitis virus (iltv) infection causes a highly contagious respiratory disease in poultry leads to significant economic losses in the poultry industry. the genomic and antigenic characteristics between virulent and vaccine strains of iltv are very similar. the ability of embryonated chicken neural stem (cns) cell for differential diagnosis of iltv strain...

In this study, the pathogenicity of A/Ch/It/5093/1999 H7N1 which had been isolated from chicken during the outbreak in Italy was assessed in chicken by experimental infection virus. Ten SPF chickens of four week-old were inoculated with this virus, and five chickens were inoculated with uninfected allantoic fluid. For determination of virus shedding, oropharyngeal and cloacal swabs were taken f...

A rapid and sensitive dot-ELISA test was developed for the simultaneous detection of antibodies against infectious bursal disease (IBD), hydropericardium syndrome (HPS) and chicken anaemia (CAV) viruses in a single serum sample. The developed dot-ELISA was compared with the virus neutralization test (VNT). For IBD and HPS, viruses isolated and purified from field outbreak materials were used wh...

in this study, the pathogenicity of a/ch/it/5093/1999 h7n1 which had been isolated from chicken during the outbreak in italy was assessed in chicken by experimental infection virus. ten spf chickens of four week-old were inoculated with this virus, and five chickens were inoculated with uninfected allantoic fluid. for determination of virus shedding, oropharyngeal and cloacal swabs were taken f...

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...

Chicken anemia virus was detected by PCR in tissue samples collected from poultry flocks in Gujarat,India. The VP1, VP2 and VP3 gene sequences of CAV from Anand, Gujarat were obtained after cloning thePCR products in pDrive cloning vector. Nucleotide sequence alignment with other CAV sequencesdemonstrated overall identity of 95-98.8%, 98.8-99.8% and 98.8-100% for VP1, VP2 and VP3 regions,respec...

Immunosuppression can increase the susceptibility of chickens to other disease-causing pathogens and interfere with efficacy vaccination against those pathogens. Chicken anaemia virus (CAV) infectious bursal disease (IBDV) are common causes immunosuppression in chickens. was induced by experimental infection either CAV or IBDV assess effect on Mycoplasma gallisepticum strain ts-304 virulent M. ...