Originally Posted by mightymax
@casportpony...You say that you have a rooster with the visceral form of MD? If I may ask, how could you tell if he's still alive? I was under the (possibly incorrect)
impression that the visceral form could really only be determined through a necropsy since the evidence of it are tumors located on the internal organs of the bird.
I'm not trying to be insensitive or a smart-*** or anything , this question is merely for the sake of my own edification.
Sorry, I know this is a few days old, but it's also important to remember that the visceral form can also involve paralysis. In Marek's birds, the paralysis is a secondary problem to visceral tumors, caused my neural lesions. Thus, if I have a bird demonstrating paralysis, and I have good reason to believe it is Marek's induced, I could say that I have a bird suffering from the visceral form.
Same thing if they get a purple comb or are gasping... that is from tumor growth on/near the heart and/or lungs. I can't see the internal tumors, but I can see what they are doing to the bird. I hope that makes sense.
Only a necropsy can 100% confirm it, but when we are playing the educated guessing game, sometimes we get it pretty darn close.