Oh yes, her upright posture looks like she is suffering from salpingitis, and probably egg yolk peritonitis. Antibiotics rarely help at this stage. I would make her comfortable as possible, and offer foods that she likes such as scrambled egg and mushy wet chicken feed. If she seems to be...
I thought the picture yesterday looked well enough to start or try the BluKote, and some supervised time with others. It is getting to be close to 6 days apart, so I would try it and just stay close by for any more than mild pecking. When I separate broodies to break them, I try to get the back...
BluKote can be drying, but I would use it once the area dries or scabs a little. I spray it but it is messy, and stains. You could spray a little on a gloved finger or get it close to the skin (have a holder.) It fades over time, but it stains fingers and clothes because it contains gentian...
Sorry that she is gasping so much. You may want to treat her for possible gapeworm with the SafeGuard liquid goat wormer for 5 days. Most feed stores have it. Do not use Aquasol, since it only treats roundworms.
Has she laid any eggs in awhile? Have you seen any unusual or thin shelled/shell-less eggs in the nest boxes? She could be egg bound, but many hens with salpingitis or internal laying will stand with a wide stance or more upright, or waddle like a penguin, and prefer to sit around. Does her...
I would doubt that sevin dust is even available there, if it did work anymore. Many products are nit as effective as they once were due to overuse. Ivermectin is one of those that was used so much to treat mites, that it has lost some effectiveness in treating worms. Your local vet probably has...
Can she drink water or eat? SafeGuard liquid goat wormer 0.23 ml (shaken well) and given orally, for 5 consecutive days can treat gapeworm. Gapeworms can only be seen inside the trachea after death when the trachea can be dissected during a necropsy. I would look into her throat for mucus or...
I have treated lice in the past and Sevin Dust which is not approved for poultry, did not even kill them. I removed and watched a clump of feathers and lice for several hours, and they were still moving around. Permethrin dust or spray does work, but is not available in Canada or other some...
Does the liver seem larger than it should be? Lymphoid leukosis virus (also called big liver disease) which causes tumors causes an enlarged liver, and can occur right around 4 months of age.
Gapeworm is a rarer type of worm, but more often chickens can gasp and stretch their necks due to a respiratory disease, either from a virus or bacteria. Have you recently added her or another bird to your flock? Does she have any swelling around either eye, or any bubbles or foam, sneezing or...
It looks like she has passed a shelless egg membrane that has gotten stuck. Her toes look suspicious for possible frostbite. Try to gradually warm her and see if the object can gently be pulled out. What are your low temperatures, and do your chickens have a warm coop out of the wind with thick...
You might want to check with your vet’s office. They may have a suggestion, such as sulfur powder in the coop, and use of a human lice treatment. Do your chickens has a dust bath area and use it? Fluralaner (Exzolt) has been approved for chickens and treatment of poultry mites, but it is a...
Ten years ago when my 2 Polish hens were alive, they occasionally had their head feathers pecked out exposing red raw skin. I used BluKote on the bare wounds once they began to heal. Some people don’t like BluKote, a gentian violet and alcohol spray that is used for scrapes and to hide red...
That is a lash egg, which is a product of salpingitis (inflammation of the oviduct.) Here is some info about it:
https://the-chicken-chick.com/salpingitis-lash-eggs-in-backyard/
https://www.bhwt.org.uk/hen-health/health-problems/lash-eggs-salpingitis/
Sorry for your loss of the chick. Lymphoid leukosis virus which also can cause cancers and spots of the liver, can strike around 4 months old. It would probably be a good idea to send the body to your state vet if possible, to test for Mareks and LLV .
Welcome to BYC. Have you ever had a mild respiratory disease, such as infectious bronchitis, in your flock. I did when mine were under a year old, and I dealt with a lot of reproductive disorders and ascites when they were 2-4 years old. Have you seen any unusual egg shells, soft on one end...
Green skin is usually from bruising. Hay or straw bales can be good wind breaks. It sounds like you have things covered. They can handle pretty cold temps without heat, and I have never seen frostbite unless temps are down to 10 F or lower.