Engormix/Poultry Industry/Technical articles

Avian Mycoplasma Control - Central for antibiotic independent production

Published on: 11/17/2015
Author/s : Chris Morrow / Bioproperties, 36 Charter St, Ringwood, Vic. 3134 Australia.
Antibiotics.
Will affect mycoplasma vaccine. 
  • Enrofloxacin
  • Tetracyclines
  • Macrolides
  • Lincomycin
  • Tylosin
  • Tiamulin
  • Timiclocin
  • Sulpha etc (a little)
  • Chloramphenicol
May not affect local field strains; Acquired resistance.
Won’t affect vaccine.
  • Ampicillin
  • Amoxycillin
  • Penicillin
  • Fosfomycin (Phosphomycin)
  • Cephalosporins
  • Not absorbed orally
                      –      Spectinomycin
                      –      Neomycin
  • Colistin and antibiotics at growth promoter levels
Effects of avian mycoplasma infections.
  • Overt disease.
                         –      Primary effects.
                         –      Synergistic effects.
                                             Chronicity.
                                             Especially with respiratory agents (but not with mycoplasmas?).
  • Production inefficiencies.
                         –      Egg production.
                         –      FCR eggs and meat.
  • Dependence on antibiotics.
                         –      Prophylactic medication programmes.
Avian Mycoplasma Control - Central for antibiotic independent production - Image 1
Avian Mycoplasma Control - Central for antibiotic independent production - Image 2
Airsacculitis.
Avian Mycoplasma Control - Central for antibiotic independent production - Image 3
Synergy.
Avian Mycoplasma Control - Central for antibiotic independent production - Image 4
Factors.
Avian Mycoplasma Control - Central for antibiotic independent production - Image 5
Chronic Respiratory Disease Three way is the most severe.
Avian Mycoplasma Control - Central for antibiotic independent production - Image 6
Mycoplasma control strategies.
Avian Mycoplasma Control - Central for antibiotic independent production - Image 7
Routine prophylactic programmes.
Meat.
  • Antibiotics at 20-22 days
Breeders and Layers.
  • Antibiotics in lay every 4 to 8 weeks
These are against mycoplasma Especially MS
Antibiotic reduction: Case studies with MSH.
Avian Mycoplasma Control - Central for antibiotic independent production - Image 8
Indonesian case study Broiler breeders.
Avian Mycoplasma Control - Central for antibiotic independent production - Image 9
Cost-benefit analysis (USD).
Avian Mycoplasma Control - Central for antibiotic independent production - Image 10
Estimate of antibiotic use against MS in Europe (2011).
Avian Mycoplasma Control - Central for antibiotic independent production - Image 11
Estimate of antibiotic use against MS in Europe (2011).
Avian Mycoplasma Control - Central for antibiotic independent production - Image 12
Avian Mycoplasma Control - Central for antibiotic independent production - Image 13
Case report: flock 2011.
Avian Mycoplasma Control - Central for antibiotic independent production - Image 14
Mycoplasma freedom.
  • Achilles heel
                        –      Totally susceptible populations
                                          Unprotected except by biosecurity
                                          Surrounding reservoirs are not always also trying to control (Type of compartmentalization).
  • Vaccination
                        –      Increase resistance to getting infected
                                          Need update of OIE/NPIP etc
Non vaccinated flock with 2 egg production drops responsive to Tylosin.
 
Avian Mycoplasma Control - Central for antibiotic independent production - Image 15
Vaxsafe® MSH and MG ts-11 vaccinated responding to amoxicillin.
  
Avian Mycoplasma Control - Central for antibiotic independent production - Image 16
 
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