Diagnosis and treatment of Porcine Neurological symptom Blight

@ # @ 227 pigs often encounter the occurrence of pig disease with "dyspnea" as the main symptom. There are 6 kinds of epidemic diseases that show "dyspnea" symptoms, which are easy to be confused in clinic, resulting in misdiagnosis. Especially for pig farms, households or rural veterinarians who lack laboratory conditions, clinical differential diagnosis is particularly important.

1. The pathogen of swine edema disease is septic Escherichia coli. It is easy to occur under stress conditions such as temperature change, weaning and refeeding, and most of them are pigs that eat more and grow faster than those who eat more than 20kg of 30kg after weaning. The diseased pigs showed low body temperature, agitation, blind walking, turning in circles, muscle tremors, convulsions, coma, swimming movements of the limbs, sensitive skin and edema of the head and face. Autopsy showed erythema, subcutaneous and gastrointestinal edema in the abdominal skin. The important thing to prevent this disease is to improve feed management, reduce various stress factors, and inject edema vaccine. The use of chloramphenicol, enrofloxacin and other antibiotics, and injection of sodium selenite, VB12 and other drugs in the early stage of the disease can achieve obvious results.

2. The pathogen of porcine pseudorabies is porcine pseudorabies virus. The epidemic is characterized by the disease of pigs and a variety of animals. The incidence of suckling piglets at the age of 10-20 days is high, with a fatality rate as high as 95%. It can occur in sows over 2 months of age to adults. The clinical symptoms of piglets were 41 ℃-42 ℃ body temperature, agitation, intermittent rotation, coma, cough, vomiting, salivation, panic, abortion, stillbirth and mummy in sows. The main changes of autopsy were pulmonary edema and liver necrosis. The key to the prevention and treatment of this disease lies in prevention. Injection of pseudorabies vaccine has a good preventive effect, but conventional drug treatment is ineffective. Pseudorabies antiserum has a certain effect in the early stage of the disease.

3. The pathogen of streptococcosis is Streptococcus hemolyticus. The epidemic is characterized by frequent occurrence of newborn piglets and suckling piglets. The main symptoms were the most acute sudden death, acute or subacute hyperthermia (42 ℃-43 ℃), obvious neurological symptoms, turning in circles, coma, panic and falling limbs. The autopsy changes included increased spinal fluid, cerebral vascular congestion and mild suppurative inflammation of the meninges. Prevention and treatment is that injection of streptococcal vaccine can achieve the purpose of prevention, and the therapeutic effect is ideal with antibiotics such as penicillin, sulfonamides and enrofloxacin.

4. Listeriosis is caused by listeria, which is zoonotic. The epidemic characteristic is that pigs and many kinds of animals can get sick, and piglets are mainly sporadic. The main symptoms were high fever (about 42 ℃), tremor, imbalance, front leg stiffness, hindlimb drag, very sensitive. The autopsy showed meningitis and focal liver necrosis. The methods of prevention and treatment are rodent control, deworming and disinfection, and the treatment effect is very good with large doses of sulfonamides or streptomycin.

5. Porcine hemagglutinative encephalomyelitis is a hemagglutinating cerebrospinal virus. The epidemic is characterized by infection in piglets less than 2 weeks old, and the virus is infected through the upper respiratory tract. The clinical symptoms were fever, depression, vomiting, constipation, sitting posture and central nervous system symptoms. Autopsy showed that there was a proliferation of cannula cells around the blood vessels. So far, there is no vaccine for the prevention and treatment of the disease, and there is no specific cure for the disease. once the disease occurs, the diseased pigs should be quickly eliminated, harmless treatment, and thoroughly disinfected in the field.

6. Porcine congenital tremor is caused by genetic factors or virus infection. Newborn piglets are susceptible to this disease. The symptoms are muscle feeding and tremor. No naked eye lesion was found by autopsy. Prevention and treatment methods to prevent inbreeding, the elimination of boars and sows with a history of disease, sick piglets generally do not need treatment, as long as artificial support, to ensure that they eat breast milk, especially colostrum, can recover on their own.