She has not been laying, and I was worried about internal laying too. Luckily, that does not seem to be the case.
Our vet visit started with a 3 hour drive through bilzzard conditions, always a blast! The vet saw us for nearly two hours to try and determine Coho's problem. In her opinion the crop was emptying properly, worms were ruled out through several fecal tests. We did x-rays next (be still, my fluttering wallet) to rule out any foreign objects in her digestive system, blockages, and to get a good look at her reproductive system. Everything looks good except that she's lost weight, and gas is pressing her gizzard more far forward than it 'should' be. She said that Clostridium could be one of the causes as she detected some gram-positive cells in the smear. The vet put her on metronidazole (flagyl) tablets to nuke any gas-producing bacterial problems she might be having.
It has been an exceptionally wet, muddy, miserable winter here so far with very little freezing, and I am wondering if maybe Coho found some old bit of food that had gone bad (been infected with the Clostridium spores) and ate it, which caused this. I am not sure where she could have picked it up otherwise, since I keep a closed flock and am religious about fresh feed and checking for mold.
I did some further research, just in case someone else has a similar problem. I'd like to share my thoughts and experience. My vet visit for Coho was many hundreds of dollars, which I know some folks will laugh at-- but even if she was not a pet, the education it granted me was worth it in case I ever have to deal with this in other chickens!
"Spores may be present in corn and grain products as well as manufactured pellets or extruded food and may develop bacterial growth if conditions are favorable." So it's probably uncommon, but not impossible, for it to exist in the feeds we buy, and why it's so important to keep our feeds dry and fresh. Clostridium bacteria cannot survive in oxygen-rich environments, thus a wet or compacted feed could harbor their growth.
"Symptoms: Symptoms vary depending on the type of Clostridial infection. Disease is generally caused by type-C strains of C. perfringens producing toxin in the small intestines of birds,
resulting in rapped loss of condition and weight loss, lethargic behavior, decreased appetite, and blood stained or
undigested food. The toxin, and its effects may remain in the system for extended periods of time even after the original bacterial infection has been treated."
Emphasis mine, as they match Coho's symptoms very well.
We are going through with her treatment and hopefully she does not suffer lingering effects as the article I read suggested!
Source:
http://www.avianbiotech.com/diseases/Clostridium.htm