Effect of a live Mycoplasma synoviae vaccine on the production of eggshell apex abnormalities induced by a M. synoviae infection preceded by an infection with infectious bronchitis virus D1466

An experimental study was conducted to assess the effect of a live Mycoplasma synoviae vaccine (Vaxsafe MS; Bioproperties Pty Ltd, Ringwood, Victoria, Australia) on M. synoviae-induced eggshell apex abnormalities (EAA). Four experimental groups of specified-pathogen-free white laying hens were made....

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Bibliographic Details
Published in:Avian pathology 2009-10, Vol.38 (5), p.333-340
Main Authors: Feberwee, A, Morrow, C.J, Ghorashi, S.A, Noormohammadi, A.H, Landman, W.J.M
Format: Article
Language:English
Subjects:
abnormal development
Animal Husbandry
Animal vaccines
Animals
Bacteria
Bacterial Vaccines
Bronchitis
Chickens
Coronavirus Infections - complications
Coronavirus Infections - immunology
Coronavirus Infections - veterinary
Effects
egg production
egg shell
Egg Shell - abnormalities
Egg Shell - drug effects
Egg Shell - immunology
egg shell quality
Eggs
Female
Immunization
Infectious bronchitis virus
laying hens
live vaccines
microbial genetics
molecular sequence data
Mycoplasma Infections - etiology
Mycoplasma Infections - immunology
Mycoplasma Infections - prevention & control
Mycoplasma Infections - veterinary
Mycoplasma synoviae
Mycoplasma synoviae - immunology
nucleotide sequences
Poultry
poultry diseases
Poultry Diseases - immunology
Poultry Diseases - prevention & control
Vaccines, Attenuated
Viruses
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Summary:An experimental study was conducted to assess the effect of a live Mycoplasma synoviae vaccine (Vaxsafe MS; Bioproperties Pty Ltd, Ringwood, Victoria, Australia) on M. synoviae-induced eggshell apex abnormalities (EAA). Four experimental groups of specified-pathogen-free white laying hens were made. All groups were inoculated with infectious bronchitis virus D1466 at 18 weeks of age. One group did not receive further treatment (non-vaccinated non-challenged (NVNC)). Two groups were vaccinated at 14 weeks of age against M. synoviae, and one of these groups was also challenged with an EAA-inducing M. synoviae strain 5 days after infectious bronchitis virus challenge (vaccinated non-challenged (VNC) and vaccinated challenged group (VC), respectively). The fourth group was not vaccinated but was challenged with M. synoviae (non-vaccinated challenged (NVC)). Eggs with EAA eggs were produced only in the NVC and VC groups. However, the proportion of eggs with EAA and the mean daily production of eggs with EAA per chicken was significantly lower (P
ISSN:0307-9457
1465-3338
DOI:10.1080/03079450903183652