The disease resistance of chickens is relatively strong, and some chickens with cultivars susceptible to the disease are rare. There are three major viral diseases, three bacterial diseases and three parasitic diseases that affect the health of chickens. The prevention and treatment of these chickens, which are susceptible to the disease and combined with the local epidemic situation, can effectively improve the survival rate of chickens.
1. Prevention and control of three viral diseases.
One of the three viral diseases is Newcastle disease caused by the Newcastle disease virus. The diseased chickens are generally characterized by dyspnea, diarrhea, faeces green, depressed and neurological symptoms, swelling of the head and face, and egg production stop. The mortality rate of chickens is as high as 90% to 100%. The preventive measures are: first day of chickens 7 to 10 days of age with the Newcastle disease IV series vaccine to drink water or nasal drops, the second group of chickens at the age of 18 days, the chickens after 60 days of age with Newcastle disease I series of muscle for muscle injection. The second is viral infectious bursal disease, caused by the infectious bursal disease virus, the clinical symptoms of diseased chicken row white or light green dilute, the spirit of Weidun, sagging, closed eyelids, feathers fluffy, and finally extreme Failed to die. The preventive measures are: drinking water from the weak vaccine seedlings of Poultry's vaccine at 14 to 21 days of age, and adding 2% skim milk powder to the water. The third of the virus diseases is chicken pox, which is caused by the fowlpox virus. Nodules are visible in various parts of the diseased chicken body. Diphtheria type fowlpox can be seen in the mouth, esophagus, tracheal mucosal ulcers, or yellow-white lesions. The preventive measures are: vaccinating the chick pox vaccine at 14 to 21 days of age.
2, the prevention and treatment of three bacterial diseases.
One of the three bacterial diseases is chicken fleas, caused by Salmonella. The diseased chickens are characterized by poor spirits, poor appetite, sagging wings, loose feathers, plucked, yellowish white or green stools. The control measures are: drinking norfloxacin, Ciprofloxacin or Enrofloxacin. The second major cause of bacterial disease is poultry cholera, caused by Pasteurella multocida. The most acute type of diseased chicken suddenly died. The acute type diseased chicken has loose plumage, does not eat, and has shortness of breath. Dilutions of gray or green dilute feces, body temperature rose to 43 °C ~ 44 °C, coma, 1 to 3 days after the death; chronic chickens showed inflammation of the joints, lameness, difficulty breathing and so on. The prevention and control measures are as follows: Chickens are killed after 30 days of age for intramuscular injection of inactivated cholera inactivated vaccines, and sulfa drugs, penicillin, streptomycin, and erythromycin are effective for the treatment of diseased chickens. The third major cause of bacterial disease is E. coli, which is caused by Escherichia coli. The chicks display anorexia, loose feathers, and unresponsiveness. Finally, they die; adult chickens show a chicken's crown shrinkage, white face, and some diarrhea. Local infections have localized clinical symptoms such as arthritis, ophthalmia, and respiratory symptoms. The prevention and control measures include the following: chickens were injected intramuscularly with E. coli oil seedlings at the age of 1 month; antibiotics such as kanamycin, neomycin, chloramphenicol, streptomycin, sulfonamides, and furans were used to treat sick chickens. effective.
3, the prevention and treatment of three kinds of parasitic diseases.
The three parasitic diseases include tsutsugamushi disease, tsutsugamushi disease, and coccidiosis. Chickens infected with aphids and aphids showed growth retardation, pale cocks, anemia, loose feathers, drooping wings, and diarrhoea of ​​enteritis. Achithiopyrazole was administered to diseased chickens at a dose of 5 mg/kg body weight to achieve repellence. The purpose of the parasite. The 0.5- to 3-month-old chicks are most susceptible to coccidia, showing symptoms such as anemia, emaciation, diarrhea, and blood in the feces. The drugs to drive out the coccidiosis are chlorpheniramine, furazolidone, octopamine, and trilobular coccidial powder. Wait.
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