Breast blisters or keel abscesses can occur basically like a pressure sore on people. She may be lying down a lot on bedding that is wet or soiled, or she might have a rough roost. If she is lying around a lot due to not feeling well, that may be the case. You can apply povidone iodine/Betadine...
I really hope that it is not ILT. ILT is a virus, and antibiotics cannot cure it. Some cases are milder than others, but it is contagious. Could the blood be from injury or pecking? University of Guelph has a necropsy lab and testing available.
https://www.uoguelph.ca/ahl/services/necropsy
Yours has no long tail feathers or saddle feathers yet, so I think hen as well. Here is a guide on telling a rooster from a hen:
https://grubblyfarms.com/blogs/the-flyer/how-to-identify-a-rooster-vs-hen?srsltid=AfmBOoqYxcliHZVMeK1hdeRmv2zLldu-caTbR91AUpYc4_nyRrhmYjmf
Is he able to eat and drink? I would offer food and water. Here is another good link to read:
https://extension.psu.edu/infectious-laryngotracheitis-ilt-in-poultry
If you need to get a diagnosis if he dies, here is a list of state vets to contact...
You can bring home a chicken that looks perfectly normal, but could have been exposed to a sick bird and be a carrier. That is why most people quarantine new birds for up to a month to watch for any symptoms. Symptoms of ILT may occur 1-2 weeks after exposure. How long since you got a new bird...
Are you giving the E and BComplex supplements to the first pullet? She looks very weak and rubber legged. I hope it is not a sign of Mareks. The second one has a cough or sneeze. Is that also what the first one did? Have you added any new birds recently or has anyone with their own flock been...
Has she ever laid eggs yet? Her tail is lowered which means she is not feeling well or could have a reproductive disorder. Was the black dropping sticky? That is not normal although it could be really dark cecal poop if it was sticky and soft. What does she eat? I would try to get her eating...
The urates still look white in amongst the yellow material. I would wonder about a reproductive disorder. Are they all eating well? Do you see one who has a lowered tail position, or any vent or feather pecking? Do any have any enlargement under the vent? Do you have a vet who will do a fecal...
Bloody mucus from the beak can be a sign of a bad virus called ILT. It can also cause gasping and arching the neck when sneezing and coughing, head shaking and slinging blood around. There is no treatment, and it is contagious. Have you added any new birds or could he have been exposed somehow?
The red is her wattles. I don’t see any earlobes, just her ear opening. Sometimes it takes a while for hackle and saddle feathers to determine sex. If they are pointy, that points to a make. We can see best in a picture from the side. Females have rounded ones. Thicker legs are more common in...
Did you get the SafeGuard Liquid Goat Wormer 10% fenbendazole? That is very safe to use at 0.23 ml per pound of weight given orally, not diluted for 5 consecutive days. That dose will treat all chicken worms except tapeworms, which are more rare.
Her dropping is mostly fluid with a few bits of solid material and white urates. I would give her some daily probiotics for a week or two, and then give 2-3 times a week. After antibiotics, there may be an imbalance of he gut bacteria. Her crop should be empty first thing in the morning before...
Normally, there would not be air under her skin if she did not have a ruptured or leaking air sac. Her crop should normally fill up with food and water during the day, and then feel empty first thing in the morning.
Mine just did it occasionally at first, then daily, before stopping altogether. I usually took her eggs, cooked them and fed them back to the chickens or dogs. Let us know how it turns out, and good luck.
Did you give her 0.5 ml of undiluted Aquasol orally and not diluted in water? The daily dose is 0.0005 ml per kg (or each 2.2 pounds.) I usually avoid Aquasol because of the complicated dosage.
Aquasol is supposed to be used in the water, and it only treats round worms, not capillary or gapeworms, the more serious and hard to treat worms. It is given for 5 consecutive days. Here is some reading about the dosage:
https://valleyvet.cvpservice.com/product/view/1047550
Did you give her 0.5...