Diagnosis and treatment of chicken infectious bronchitis – Poultry disease prevention and control – China Animal Husbandry Website – A useful animal husbandry website
This disease is a chicken respiratory infectious disease caused by coronaviruses. Spread rapid, all kinds of bulls can be infected. In winter, the incidence is high, often caused by chick, and can also cause damage to the growth of chicken, especially the growing chicken genital organs suffer from permanent damage. 1 Spread this disease to be propagated via air or other contact method. Typical cases. After the onset of the disease, the whole chicken group can be quickly subjected to infection and the pathogenesis of the respiratory tract sustainable L0-L4. Infectious sources are mainly sick chives and rehabilitation with poisonous chickens, and they can be poisoned after 49 days. The spread route is propagated through the anemia, which can also be propagated with polluted drinking water, feed and pad. The spread spread quickly, once infected almost all groups. It can occur in four seasons a year, but it is more serious in the cold season of climate. 2 Symptoms The incubation period is 18-36 hours. In the young chicken and adult chickens, there are many mucus in the trachea, and the respiratory tract is obvious, as well as asthma, cough. The young chicken has a lot of secretions in the nasal cavity, and the eyes are like tears and can be seen in sinus swelling. Disease chickens, loss of appetite. The childhood mortality rate can sometimes be as high as 60%. Nepathy variarging infectious bronchitis, is currently more, the popular range is wide, and the 20-30 age is its high phase. At the beginning of the disease, the sick chicken is afraid of cold, sneezing and cough, some of the Zhangqi and the trachea, there are obvious systemic symptoms after 2-3 days, showing anorexia, arch back, drinking, pulling white water-like feces, The feces contain a large amount of uric acid. Disease chickens are water, muscle dry, crown and skin. 3 The disease is changed in the corpse of a chick, and there is a nose, sinus, and the trachea has a karotomy. The trachea is visible with a cheese blockage. There are often some cheese substances, or the airbag is turbid, but other respiratory diseases, especially the airbags of the branch (chronic respiratory disease), there are similar lesions. Non-nephropathy, no obvious pathological changes in the respiratory tract, the main lesions are caused by renal swollen, pale, renal tubules and ureterals are filled with uric acid, and the kidneys appear. 4 Diagnosis According to the characteristics of epidemiology, clinical symptoms and pathological changes can be preliminaryly diagnosed, further diagnosis is required to isolate the virus and test identification and serological tests.
The clinically should be distinct from the new city disease, infectious laryngiitis and infectious rhinitis. New city evolution is generally more serious than infectious bronchitis, and chicks sometimes visible to neurological symptoms.The decline is more obvious; the diffusion of infectious laryngi in the chicken group is relatively slower than the disease, but the respiratory symptoms are often more serious, and rarely occurs in chicks, and this disease can occur in each A aged chicken; diseased chickens in contagious rhinitis often see the face swelling, and rare in this disease. In addition, the kidney infectious bronchitis is not obvious as compared to infectious richest cysts that can cause nephroglosis. 5 Prevention of this disease once, it is difficult to control, there is currently no effective treatment, can only improve the conditions of feeding management to mitigate the condition, and add vitamins and trace elements in the feed in drinking water, to enhance the disease resistance of chicken. . (1) Vaccination vaccination vaccination vaccination, can quickly produce immunity. At present, the commonly used vaccines have two kinds of living seedlings and inactivating seedlings. my country’s widely used via seedlings are H120 and H52 strains, and H120 vaccines are used for chicks and other aged chickens. The H52 vaccine can be used when the chicken is started, or the new city-infectious bronchitis two seedlings can be selected in the chick stage; the inactivated oil emulsion seedlings are mainly used in the production of seed chickens and produce chickens. The general immunization procedure is 4-5 days of vaccination H120 weak poisonous seedlings, and the second time in January is second or a kind of chicken to strengthen it in 2 – 4 months, with a strong H52 vaccine, chicken and egg chicken Use an oil emulsion to induce a living seedlings before being opened. Volculus immunization can be used with drops, aerosol and drinking water, and inactivating the seedlings can be injected. (2) Chinese medicine treatment of clearing heat and detoxification, phlegm and cough are governance.
This topic is reviewed by 29625248 at 2020-6-29 12:07
Original article, author：xinran，If reprinted，Please indicate the source：http://www.badpet.org/diagnosis-and-treatment-of-chicken-infectious-bronchitis-poultry-disease-prevention-and-control-china-animal-husbandry-website-a-useful-animal-husbandry-website/