Quote:
My guess is that a chicken with this infection would smell pretty bad too.
Here is what the Merck Vet. Manual (http://www.merckvetmanual.com/mvm/index.jsp?cfile=htm/bc/201400.htm) says about it (and when they say caseous, think "cheesy"):
I find an awful lot of partially grown doves in my yard. Wonder if they're dying of trichamonas.
My guess is that a chicken with this infection would smell pretty bad too.
Here is what the Merck Vet. Manual (http://www.merckvetmanual.com/mvm/index.jsp?cfile=htm/bc/201400.htm) says about it (and when they say caseous, think "cheesy"):
The bird may be riddled with caseous, necrotic foci. The mouth and esophagus contain a mass of necrotic material that may extend into the skull and sometimes through the surrounding tissues of the neck to involve the skin. In the esophagus and crop, the lesions may be yellow, rounded, raised areas, with a central conical caseous spur, often referred to as yellow buttons. The crop may be covered by a yellowish, diphtheritic membrane that may extend to the proventriculus. The gizzard and intestine are not involved. Lesions of internal organs are most frequent in the liver; they vary from a few small, yellow areas of necrosis to almost complete replacement of liver tissue by caseous necrotic debris. Adhesions and involvement of other internal organs appear to be contact extensions of the liver lesions.
I don't have any experience with either of these diseases, only with what I've read. But, it sounds like one distinguishing feature is the age at which the birds are likely to exhibit the diseases; Trichomonas gallinae is more likely to be seen in younger birds and infectious coryza is more likely to be seen in older birds. Also, it sounds like it would be good to have a look at the liver. That might be the best distinguishing feature a BYC'er could use.
Given our urban environment, the large numbers of doves and sparrows (which also carry it) and the extremely high frequency of infection in the wild birds, I would have to wonder if they might be the culprits. Also, Trichomonas gallinae is typically transmitted to poultry from wild birds after sharing a water source. The parasite doesn't live long at all in a dry environment (I think it's measured in minutes), but can live quite well in a watering dish. Do you use poultry nipples? That might help limit transmission.
I don't know if any of this will help and I certainly hope I didn't muddle things for you. And please, if anyone else has something to correct or add here, please do. I'm not an expert by any means, just a guy that likes to read obscure crap and worry himself.
I don't have any experience with either of these diseases, only with what I've read. But, it sounds like one distinguishing feature is the age at which the birds are likely to exhibit the diseases; Trichomonas gallinae is more likely to be seen in younger birds and infectious coryza is more likely to be seen in older birds. Also, it sounds like it would be good to have a look at the liver. That might be the best distinguishing feature a BYC'er could use.
Given our urban environment, the large numbers of doves and sparrows (which also carry it) and the extremely high frequency of infection in the wild birds, I would have to wonder if they might be the culprits. Also, Trichomonas gallinae is typically transmitted to poultry from wild birds after sharing a water source. The parasite doesn't live long at all in a dry environment (I think it's measured in minutes), but can live quite well in a watering dish. Do you use poultry nipples? That might help limit transmission.
I don't know if any of this will help and I certainly hope I didn't muddle things for you. And please, if anyone else has something to correct or add here, please do. I'm not an expert by any means, just a guy that likes to read obscure crap and worry himself.
I find an awful lot of partially grown doves in my yard. Wonder if they're dying of trichamonas.
