Effect of associated vaccines on the interference between Newcastle disease virus and infectious bronchitis virus in broilers

Infectious Bronchitis virus interference with Growth of Newcastles disease virus. 1 - Study of interference in chicken embryos

The effect of mixed live vaccines of Newcastle disease and infectious bronchitis on systemic and local antibody responses in chickens

In the present study, 360 male day-old broiler chicks were used to determine the effect of mixed livevaccines of Newcastle disease (ND) and infectious bronchitis (IB) on serum and local antibody responses toIB. Chicks were randomly divided into 12 treatment groups of 3 replicates and reared for 40 days on floorpens. Groups 1 to 5 received mixed ND and IB vaccine. Groups 7 to 11 received IB vacc...

Effect of the Commercial Mixed Live Newcastle Disease and Infectious Bronchitis Vaccines and the Use of Two Separate Vaccines Given Simultaneously on Systemic Antibody Responses

Background and Aims: The objective of this study was to investigate the effects of Newcastle Disease and Infectious Bronchitis vaccination programs in chickens. Materials and Methods and Results: In the present study, 225 day-old broiler chicks divided into 5 groups. The groups were submitted to vaccinations, except for the non-vaccinated control group. The chickens in the groups 1 were kept as...

infectious bronchitis virus interference with growth of newcastles disease virus. 1 - study of interference in chicken embryos

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Effect of Zataria multiflora essential oil on immune responses and faecal virus shedding period in broilers immunized with live Newcastle disease vaccines

Zataria multiflora essential oil possesses immunomodulatory effects and the present study investigatesits effect on immune responses to live Newcastle disease (ND) vaccines and faecal shedding period ofvaccine strain virus in chickens. One hundred and eighty chickens from both sexes were divided into 6 equalgroups: group 1: unvaccinated, group 2: vaccinated (B1 vaccine followed by La Sota 10 da...