What diseases do chickens get easily in autumn?

The weather is cold and hot, which leads to poor intestinal conditioning performance and a large number of pathogenic microorganisms, causing diarrhea. The mental state of the chickens is still good, but the growth is slow and the comb is pale. The feces of some chickens are white strips or mucus-like, containing undigested feed, and the feces are yellow. Some chickens look depressed, shrink their heads, shake their heads, run back and forth, scream at every turn, and then become paralyzed. The incidence of chickens is about 1%.

Control measures: (1) isolate sick chickens, eliminate residual chickens, remove padding and disinfect thoroughly. (2) Pay attention to both heat preservation and ventilation. (3) Suggest a medication plan and use microecological agents to restore intestinal function. Strengthen the feeding management of chickens at ordinary times, so that the chickens can maintain strong resistance and do a good job in epidemic prevention and disinfection. (4) Drug prevention: Commonly used drugs include penicillin, chlortetracycline, norfloxacin, tetracycline, oxytetracycline and streptomycin. These are all practical. It can be administered by water mixing method, material mixing method and one-by-one administration method. For sick chickens that don't eat or drink, the injection method should be adopted (5 ~ 654.38+million units of penicillin should be injected into the muscle of each chicken twice a day for 2~3 days). (5) Immunization: If there is no epidemic of this disease in chicken farms, vaccination is generally not needed. Vaccination in epidemic areas has a certain effect.

2. Chicken pox

Caused by avian pox virus. When chicken pox occurs, the laying rate of laying hens decreases. The appetite, spirit and feces of chickens are basically normal. Skin-type chickenpox has a characteristic papular nodule-acne that occurs in combs, beards, etc., and is generally not fatal; Mucosal type has a yellow-white cheese-like pseudomembrane attached to the mouth and throat, and there is a "quack" sound when breathing. Local acne can be seen in the skin type at autopsy; In addition to the yellow and white pseudomembrane of the mouth and throat, some acne spots can also be seen in the tracheal mucosa. No other internal organs were sick.

Prevention and control measures: (1) Vaccination is the most reliable way to prevent chickenpox. (2) Keep the henhouse clean, dry, ventilated and transparent, and disinfect it on schedule. In particular, it is necessary to do a good job in mosquito prevention. (3) The treatment of chickenpox uses antibiotics to prevent secondary infection, and acne scabs on the skin are generally not treated.

3. Chicken leukocytosis

It is a disease caused by protozoa living in white blood cells invading the tissues and cells of blood and internal organs. Sick chickens are depressed, close their eyes, diarrhea, loss of appetite or abandoned; The feces are green, and bloody stools often appear; Chicken anemia, emaciation, pale crown color, slow growth and development; Most sick chickens suddenly hemoptysis and dyspnea before death; The laying rate of laying hens has dropped significantly. After autopsy, we can see that the crown and moustache of the chicken are pale, the meat color is pale, and there is a large area of bleeding under the skin. Hepatomegaly is yellow-brown, with yellow-white nodules as big as millet and soybean; The kidney is swollen and bleeding, and there are a lot of blood clots on the surface; Spleen has bleeding point; Individual chickens have bleeding spots in pancreas, muscle stomach and abdominal fat; Pulmonary hemorrhage, blood clots in trachea and bronchus.

4. Infectious rhinitis in chickens

Infectious rhinitis in chickens is characterized by inflammation of nasal cavity and paranasal sinuses, sneezing and facial swelling. The obvious symptoms are facial swelling, serous and mucinous secretions in nasal cavity and paranasal sinuses, conjunctivitis, swelling of tissues around one orbit, severe blindness, obvious edema of beard, and dyspnea when upper respiratory tract inflammation spreads to trachea and lungs.

Preventive measures: (1) Vaccinate. (2) Feeding governance: Strengthen feeding governance, improve ventilation conditions of henhouses, reduce ammonia content in the environment, implement a feeding system of all-in and all-out, thoroughly disinfect empty houses, enter new flocks at intervals, and do a good job in veterinary hygiene and disinfection inside and outside henhouses. (3) Sulfonamides are selected to treat this disease, and the Chinese herbal medicines are: Radix Angelicae Dahuricae, Radix Saposhnikoviae, Herba Leonuri, Mume Fructus, Polyporus, Fructus Chebulae and Alismatis Rhizoma, 65,438 g each, and Flos Magnoliae, Radix Platycodi, Scutellariae Radix, Rhizoma Pinelliae, Rhizoma Zingiberis Recens, Semen Lepidii and Glycyrrhrizae Radix, 80g each, which are crushed, sieved and evenly mixed.