Abstract
The effect of two vaccine strains of infectious bronchitis virus (IBV - VicS and A3 strains) on internal and external quality of eggs was studied in Isa Brown hens in full lay. Birds were either unvaccinated for IBV or had been vaccinated during rearing. The main effects of exposure to the vaccine viruses were that VicS resulted in paler coloured shells, mainly in the unvaccinated birds and the eggs from the hens challenged with VicS were more elongate than the other groups. These findings are consistent with our earlier findings with field strains of IBV and differ from those reported in the literature for different strains of IBV.
| Original language | English |
|---|---|
| Pages (from-to) | 95-98 |
| Journal | Proceedings of the Australian Poultry Science Symposium |
| Volume | 20 |
| Publication status | Published - 2009 |
| Event | APSS 2009: 20th Annual Australian Poultry Science Symposium - Sydney, Australia Duration: 9 Feb 2009 → 11 Feb 2009 |
UN SDGs
This output contributes to the following UN Sustainable Development Goals (SDGs)
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SDG 3 Good Health and Well-being
Keywords
- Animal Protection (Pests and Pathogens)
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