Noelg, it's not the policy of most areas to require a positive flock to be culled. Find out your state's regulations (particularly for backyard flocks, NOT commercial flocks) and go from there.
On the vaccinations. It is MY understanding that vaccinations for CRD illnesses do NOT prevent the...
jim&julie-- I wouldn't be so sure you have no carriers. Without testing each and every one, or culling ALL and doing taking the appropriate measures to allow the disease to die off in the environment... you absolutely cannot be sure. For instance, most of the CRD diseases take at LEAST 5 days...
Wild birds can be a mode of transmission, but it's a smaller risk than introducing a live bird to your flock. I'd still place bets on it being the newest additions. Did your flock start showing symptoms within the 6-21 days after exposure to the new birds? (or cross contamination carried by...
Tylan 50 is 3/4-cc for large fowl and 1/4-1/2cc for bantam or small pullets. It can be given as injectable or orally, but it's more efficient injected.
I haven't used the other asked about, but have tried Aureomycin, which states it controls MG. I didn't find it very effective honestly. It...
Most of the time, with any of the antibiotics, you're basically treating secondary infections. The eye goop and/or any nasal discharge is often the result of a secondary bacterial infection brought on by the 'main' virus that weakened their symptoms. With mild(er) strains of MG, it's fairly...
The ones you brought in either won't get sick OR if they 'relapse' and show symptoms, they should be much more mild... any 'relapses' due to stresses are usually much more mild. The initial 'acute' stage, when they are first infected, is generally much more severe.
All have definitely been...
Sounds a lot like MG, which quarantine can often fail to discover. Birds that are carriers may show no symptoms at all, but be able to infect healthy ones once put in with the flock.
A lot of meds are pretty worthless for it, IMO.
Tylan 50 does a good job, baytril (but is Rx and costly)...