diagnosis and treatment of a case of haemophilus influenzae in pigs-九游会旧版

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diagnosis and treatment of a case of haemophilus influenzae in pigs
add time:2012.08.23    views:507

clinical symptom
the pig disease quickly, mainly respiratory symptoms: fever and arthritis, the temperature rises to 40 deg ~41 deg, lethargy, loss of appetite, some anorexia, cough, difficulty breathing, heartbeat, pain; some pigs squeal, especially joint hind limb joint swelling, touch no purulent secretions, side, unwilling to stand up walking, slow, ataxia, some visible mucous membrane cyanosis, roughened hair coats, the incidence of ten days or so lean pigs.
pathological change
multiple inflammatory necropsy pleurisy, pericarditis and joint, fibrinous exudate protein, pericardial effusion, pleural effusion and ascites increased, lung enlargement, fibrinous pneumonia, lung and pleural adhesion occurred, cardiac and pericardial adhesions were villose heart, cardiac edema, systemic lymph nodes especially the inguinal node serious lymph node enlargement, dark red, cut a marbleized. the joint cavity, especially the posterior joint cavity, has a clear yellowish colloidal transparent liquid.
diagnosis
according to incidence, clinical symptoms and pathological changes, the preliminary diagnosis of the pig haemophilus parasuis disease, for further accurate judgment to laboratory diagnosis, take sick pig blood, liver, kidney, lymph nodes were smear or contact, gram staining, microscopic examination, gram negative bacilli were seen in small, slender most of the individual was rod-shaped, bipolar staining of club shaped, with long and curved shape was fine.
in addition, due to a number of serotypes of haemophilus parasuis (with 15 known serotypes), and selection of tetracycline, amoxicillin, erythromycin, gentamicin, kanamycin, enrofloxacin susceptibility test, found that amoxicillin was the most sensitive, followed by tetracycline.
treatment and outcome
(1) comprehensive disinfection pigsty disinfection once every two days, such as the rotation of morninglight strains and strains might kill with iodine disinfectant different, while strengthening ventilation.
(2) strengthen management: from the feed to feed dry dry wet material, increase the palatability; appropriate to the pig green leaves, sweet potato seedlings, radish and other succulent feed.
(3) early treatment, symptoms of fever, intramuscular injection of mixed tratch morninglight no. 1 (mixed), 1 times a day for 3 days; the whole column disease pig feed mix medicine: jinqi anti virus epidemic doxycycline (original powder) tmp high free discharge toxins; water use: polysaccharide interferon for 7 days.
chuang xin liu teacher

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