Chris Morrow talks about mycoplasma vaccination in layers

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January 19, 2021
If you want more details about vaccination

http://www.bioproperties.com.au/!Pages/Publications/Documents/DOC-Bulletin-2020-01.pdf

If you want information on the Antibiotic sensitivity survey in Asia in MG and MS

Morrow CJ, Kreizinger Z, Achari RR, Beko K, Yvon C, Gyuranecz M. Antimicrobial susceptibility of pathogenic mycoplasmas in chickens in Asia. Vet Microbiol. 2020 Nov;250:108840. doi: 10.1016/j.vetmic.2020.108840. Epub 2020 Sep 19. PMID: 33068825.
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Muhammad Kashif Muhammad Kashif
Veterinary Doctor
January 19, 2021
Chris Morrow i need this article and please respond to my comment about vaccination of layers dudring rearing
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Muhammad Kashif Muhammad Kashif
Veterinary Doctor
January 19, 2021
How many shots of Live vaccine or killed in layers and at what age and which vaccine you will prefer Dr. Morrow specially for MG control as it is a problem in Pakistan
If you remember you chaired session in WVPAC 2007 Beijing Where i presented on gentamicin toxicity it was my first international presentation
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January 20, 2021

Muhammad Kashif The live vaccines colonise the birds for life - you only need one vaccination. You should also vaccinate for MG and MS. MS can mimic anything MG can do.
ts-11 and MSH can be used from 3 weeks of age. Immunity may take 5 weeks to develop and you need to not use antibiotics after vaccination.

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Muhammad Kashif Muhammad Kashif
Veterinary Doctor
January 22, 2021
Chris Morrow Thanks
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David Burch David Burch
Doctor of Veterinary Medicine
January 24, 2021
I could not agree more Chris, that laying flocks should be vaccinated, especially in high risk areas. We normally consider MS to be less of a clinical problem but this has led it to be quite widely spread. The Dutch have made major efforts to reduce its incidence of infection in poultry in general but also in layers, which has proven more difficult. In conjunction with virus infections, such as IB and low path AI, we have seen some significant impacts on mortality and production with MS.
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Muhammad Kashif Muhammad Kashif
Veterinary Doctor
January 19, 2021

What is your opinion about F strain vaccination in layers?

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Nimer Natsheh Nimer Natsheh
Veterinary Doctor
January 23, 2021

it is an excellent vaccine for protection against MG with a good titer.

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January 24, 2021

Chris Morrow due to commercial reasons if all the commercial layer farmers in an area can't adopt the M.g control strategy with M.g vaccine. A few farmers using M.g vaccine should adopt live M.g vaccine or killed M.g vaccine is the safest solution then?

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Dr Kibiike David Dr Kibiike David
Bachlor. Veterinary Medicine
January 25, 2021

Thanks for all the responses, on my farm I experienced some infections a year ago. I depleted made did a though clean up disinfected and then took a 3 month without stocking.
After that i stocked and my birds were doing very well. In the sixth week, I did vaccination using a live Mycoplasma MS. I did a repeat at 9th week.
A week ago I got an attack of the infection at age of 14 weeks. I have been treating and they have cleared. I first used Tiamulin for 3 days there was no effect at all the infection was just progressing. I have now controlled it . my problem why did I get this attack even after vaccinating .
.

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January 25, 2021

What should be the Multi-age commercial layer (M.g) control strategy?

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January 26, 2021

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

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January 26, 2021
Chris Morrow if we have the same place for rearing and production then killed M.g vaccine can be a option?
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