The comb cools down the chicken.
The comb is the red (sometimes purple), fleshy part on top of a chicken's head. Both male and female chickens have combs, but those of the male chickens are usually larger. Combs are important because they cool down chickens by circulating blood between the comb and the wattle, which is a fleshy red fold of skin hanging from the throat of the chicken. Chicken combs are susceptible to a number of diseases.
Fowl Cholera
Fowl cholera, also known as avian cholera, avian pasteurellosis and avian hemorrhagic septicemia, is a disease caused by the bacterial organism Pasteurella multocida that affects chickens. Symptoms include a purple comb, high temperature, swollen wattle, loss of appetite, ruffled feathers, coughing and lameness. Rodents and domestic pets can facilitate the spread of the disease by carrying the bacteria from one location to the other. Fowl cholera can be destroyed by the use of disinfectants, although they may persist for prolonged periods in the soil afterward. Some drugs like sulphonamides, tetracyclines, erythromycin, streptomycin and penicillin are used to treat fowl cholera.
Fowl Pox
Fowl pox is highly contagious.
Fowl pox comes in two varieties: the wet pox and the dry pox. The wet pox is spread by inhalation and affects the upper respiratory tracts. The prognosis for this type of fowl pox is very poor. On the other hand, dry pox is characterized by the appearance of small whitish foci, which develop into wart-like nodules on the featherless parts of the chicken including the comb. The nodules eventually turn to scabs, which lead to final healing. This disease is usually transmitted by mosquitoes that spread the virus from infected birds to non-infected ones through feeding. The virus can be highly resistant in dry scabs and has been known to survive for months on contaminated premises. There is no treatment for fowl pox, although a general vaccination against it when the birds are 6 to 10 weeks old results in immunity against the disease.
Avian Inflenza
Avian influenza can be reduced by practicing proper hygiene.
Avian influenza is a viral disease that affects most species of birds including chickens. This disease occurs as a result of improper disposal of manure and infected carcasses and by rodents that carry the virus from infected poultry to non-infected ones. Avian influenza leads to facial swelling and blue combs and wattles in chicken. It also leads to the development of dark red and white spots on the combs and legs of chicken. There is no cure for avian influenza although proper hygiene and antibiotics might help prevent serious loss in mild infections.
Related posts
Symptoms Involving FeathersChicken diseases can't be diagnosed without first observing the various symptoms they cause. Farmers must be alert for a variety of signs that may then lead to a diagnos...
A variety of diseases that can affect chickens.Many different diseases can affect chickens. The diseases can be hard to diagnose because many of them cause the same symptoms. Call your veterinaria...
Whether you are a farmer or a homeowner with backyard chickens, you know that chickens are loyal, intelligent, enjoyable to watch and efficient producers of eggs. Proper feeding and a regimen for...
Respiratory infections can cause death in chicken populations.Poultry farmers and chicken enthusiasts are constantly on the lookout for diseases that can affect the health of their poultry. Since...
Chicken Comb for Knee PainArthritis is one of the most common complaints that orthopedic doctors encounter. The knee is particularly susceptible to this crippling disease, where the cartilage cove...
