Oh, but chickens are close cousins of lizards. When comb tips and toes are damaged and the tissue begins to die, the chicken's body walls off the injured part, cutting off blood supply. This also cuts off any danger of infection. Neat, huh? There is some swelling as the dead part separates from...
That pictured poop itself looks normal. Coccidia poop is usually loose, trending toward diarrhea. And blood in poop can be caused by a broken blood vessel. Absent changes in behavior with noticeable lethargy, a single poop with blood should just be watched for more appearing.
Since you are new...
Intestinal shed appears as strands of orange tissue. Blood in the poop appears ruby red and is often a clot, not strands of tissue. But not all strains of coccdia results in bloody stools.
Chickens raised from chicks on local soil become resistant to coccida in that soil. But if you import soil...
Do not worry about a single isolated poop. But do take it as a signal that you need to watch the behavior and poop of the flock for the next five to seven days. If you see ruby red clots of blood in the poop and individual chickens begin to slow down and show signs of being off in their...
https://www.backyardchickens.com/articles/stuck-egg-collapsed-egg-hanging-from-vent-prolapse-oh-my-what-to-do.76124/ Have you read my article on treating prolapse? Scroll down to the end and I talk about the condition your hen is in right now. If it's been going on for several days, the outcome...
Being small, Trixie may be running on low energy reserves. Give her one cup of water with one teaspoon sugar and a pinch of salt and baking soda mixed in. This will raise her glucose levels and balance her electrolytes. It could prevent her death before she recovers from egg binding.
The lesions on that foot appear to be very early stage bumble. Soak in Dawn detergent for ten or fifteen minutes, then scrape the scabs off with your finger nail. No cutting needed. Apply antibiotic ointment, and check again in a few days. If the foot hasn't formed thin, new, light colored...
Sounds like it could be an upper respiratory illness. There's also a possibility these chickens are suffering from heat sickness.
Treat the respiratory sympotms with this antibiotic. https://jedds.com/products/amoxy-tyl?_pos=3&_sid=cb74b4579&_ss=r
Treat heat sickness by providing a cooling...
Your hen likely has more than one issue. And, yes, it could be Marek's in spite of the vaccination. It only prevent tumors, not the inflammation of the sciatic nerve that can cause paralysis. If this chicken also dies, have her body tested so you will know. Managing a Marek's flock, you need to...
Calcium supplements, whether citrate or carbonate forms, are concentrated, unlike oyster shell and egg shells. Hens are reacting to individual cravings for calcium and they consume the oyster shell or egg shells and quit when they feel satisfied. They can't do that when we stuff a supplement...
I think you and I have both covered all the bases we can think of. One other thing that affects shell quality is molt. It may seem that it's early yet for chickens to begin molting, but the days are growing shorter and it's triggered two of my hens so far to molt.
I think holding the line and...