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| the difference and treatment of haemophilus suis and streptococcus suis add time：2012.08.23 views：522 |
| arthritis pig roughly caused by three factors, one is the porcine articular cartilage due to trauma or ligament damage, two is due to damp and cold stimulation, three is due to the occurrence of certain diseases caused by bacterial infection. haemophilus influenzae and streptococcus are important pathogens in arthritis caused by bacterial infection, and the differential diagnosis and treatment of the disease are emphasized in the following arthritis due to infectious haemophilus influenzae disease haemophilus suis (hps) is the causative agent of swine fever and arthritis. in clinical and pathological studies, pigs are characterized by serous, fibrinous, inflammatory and inflammatory arthritis and high mortality. in addition, haemophilus pleuropneumoniae (hs) was added to actinobacillus pleuropneumoniae (ap) to induce contagious pleuropneumonia (pcpu) in pigs. 1. clinical symptoms the occurrence of this disease first pig farm, the rapid onset of exposure to pathogens, within a few days after onset and high temperature reaction appeared, late tun, when forced motion or scream (pain), some pigs due to meningitis and muscle tremors, convulsions, paralysis. patient of limbs joint swelling, claudication, tremor, ataxia pain, visible mucous membrane cyanosis, side of death. when the bacteria through the skin wounds with blood and skin invasion or invasion, can cause local necrosis or inflammation of the skin, involving the ear, can cause ear necrosis. 2. changes in necropsy a pig whose disease is characterized by a single or multiple serosal surface, including pleura, peritoneum, pericardium, meninges, and synovial membrane. serous and purulent fibrinous exudate occurs. arthritis is characterized by inflammation and edema of the joint surrounding the joint, enlarged cyst, increased synovial fluid, and a yellowish green purulent exudate. fibrinous purulent meningitis, subarachnoid cavity is due to see savings cerebrospinal fluid fibrino purulent exudate becomes turbid. other ocular lesions include congestion of the lung, liver, spleen and kidney, focal bleeding and swelling of lymph nodes. adhesions between the peritoneum and the abdominal cavity result in an increase in synovial fluid, including fibrin floc and concomitant articular cartilage lesions (showing rough surface of cartilage). 3. treatment measures according to the study, the causative agent of the disease is more sensitive to sulfa drugs so bloodthirsty kang, morninglight honggong chain, strong resistance, long-term drug treatment is classic is often used. intramuscular injection or intravenous injection can be made with one of these drugs or combinations. 4. preventive measures 4.1. immunization of haemophilus parasuis multivalent oil emulsion inactivated vaccine, to sow colostrum by inoculation, the piglets less than 4 weeks of age to get protection, when the piglets were 4 weeks, then inoculated with the same vaccine to produce immunity (method and dosage according to the instructions). it is important to note that the hps serotypes are numerous, such as the type of serotypes contained in the vaccine being inoculated and the hps serotypes occurring, with excellent results or failure to cause immunity. 4.2. reduced the flow of piglets, advocate farrow, special feeding piglets trafficking in commercial farms, try to buy piglets from local area (due to the disease serotypes with local characteristics obviously), to prevent new serotype hps into this area. 4.3. strengthen management, maintain clean sanitation, good ventilation, cold case, try to reduce the intrusion of other respiratory pathogens, eliminate the production phase of the pig in different polyculture column, reduce pig flow, improve the disease resistance of pigs. 4.4. strengthen the pig nutrition management, in accordance with the health method, adding high free row toxin or astragalus polysaccharide extract powder morninglight amoxicillin in feeder pigs of 35kg in the feed, the pig can enhance disease resistance, good prevention and control of the disease. arthritis caused by streptococci 1. clinical symptoms mainly for polyarthritis, one or more of the muscles around the joint swelling, pain, limp, difficult to stand, some hind limb paralysis, recumbency, palpation of local wave motion, a hardened, thickening of the skin. suffering from pig temperature rise, coarse hair disorder, poor appetite, gradually losing weight. 2. anatomic lesions necropsy of diseased joint visible serofibrinous inflammation, joint capsule, synovial membrane surface hyperemia and rough opacity, and contains white cheese like lumps. some of the joints around the subcutaneous gelatinous edema, joint cartilage necrosis in severe cases, joints around the tissue has multiple purulent foci and necrosis. 3. diagnosis according to the incidence of the disease, clinical symptoms, anatomical changes and laboratory examination, it can be diagnosed as arthritis caused by streptococcal infection. 4. treatment promptly isolate the sick pigs and treat the sick and suspicious pigs. there are a lot of streptococcus sensitive drugs: chuangxin no. 1 (ofloxacin), chuangxin no. 2 (amoxicillin clavulanate potassium), morninglight honggong chain, welcomes the first rice (20%, oxytetracycline) deputy eosinophilic inflammation poisonous kang, but due to streptococcus prone to drug resistance, so the treatment dose to foot treatment must be complete, should consider the rotation and the combination of medication,. 5. discussion streptococcus pneumoniae is an important pathogenic diseases caused by bacteria, can cause a variety of diseases in pigs: often acute hemorrhagic septicemia and encephalitis, chronic arthritis, endocarditis, lymph nodes and tissue characteristics such as purulent suppurative. as the temperature rises, a series of environmental incentives such as rain and humidity are especially likely to cause arthritis. if not promptly prevented, it will soon spread to the whole population and cause serious death. |
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