The vaccine should not be expected to solve the mycoplasma problem if biosecurity measures are not implemented. Cultivation of various age categories in the industry is not possible and such will never give a satisfactorily healthy flock.
1) you should control MG and MS with the same strategy. (freedom, vaccination, or antibiotics)
2) you should source replacement that is mycoplasma free
3) if your farm is multiage then you should rear stock remotely (2 km away from other poultry) and vaccinate them for the challenges they will get when they are moved to the multiage site.
4) Use live MG and MS vaccine - one dose. Don't use killed vaccines - don't worry about serology after vaccination and don't give the birds antibiotics unless they have clinical signs and if they do have clinical signs, get a diagnosis - DIVA PCR
What is your opinion about F strain vaccination in layers?
Dear Dr Morrow,
Thanks
Do you think Using live Ms vaccine fails in areas where biosecurity is poorly practiced, impossibility to finding Ms and Mg free day old chick layers, over vaccination for Newcastle disease that leads to severe vaccination reaction followed by using antibiotics, multiple rearing of layer Pullets and producing layers in the same area?
Best regards
Oumed
Hello Dr. Chris
Is Ms live vaccinated flock getting PCR positive during rearing and production? If yes, that would be problematic in my country as we do not have laboratory equipped with sequencer to differentiate vaccinated from vaccinated infected flocks !!
Also it is so difficult to not to use antibiotics in Ms vaccinated flocks due to post vaccination reaction to other respiratory vaccines!
Your comments are highly appreciated!
Oumed
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