Experience in the treatment and prevention of swine streptococcus in common swine diseases

An old man said that his pig suddenly died in the middle of the night. Before the death, the piglet had always had a bad spirit and was often lethargic. It suddenly circled around the pigsty at night and was lying on the ground after a while, chewing it, and died after a while. After the death, a small amount of blood bubbles flowed out of the mouth and nose, and there were no symptoms of gasping. Therefore, the diagnosis of acute encephalitis-type streptococcus, so let him pay close attention to the symptoms of other piglets, do a good job of pig health care, if necessary, can be streptococcal vaccine to prevent the overall incidence.

Streptococcus can be transmitted through the blood, mouth, nose, etc. Sometimes when the pigs bite frame is also relatively easy to infect. The incubation period of this pathogen is generally 1 to 3 days, and sometimes it can reach 6 days or more. There are several types of streptococcal diseases: encephalitis type, acute septic type, arthritis type, chronic lymph abscess type, in which the mortality rate of encephalitis type and septic type are relatively high, while arthritis and encephalitis type are often associated with chronic degeneration. The Haemophilus serotype has some similar symptoms.

First, clinical symptoms

1, encephalitis-type streptococcal disease

There have been descriptions of the symptoms of pigs raised by him: Pigs are sometimes paralyzed, paralyzed, empty chewing, purple spots on their limbs, and not eating. At that time, he thought it was a combination of insects, pseudorabies, and effusions in the body. In fact, this is a typical case of the encephalitis-type mixed septicaemia.

Streptococcus encephalitis typical symptoms: the body temperature of the pig is relatively high (40-42.5 °C), the appetite is abolished, there is encephalitis-type neurological symptoms, limb paralysis can not stand. Sitting or squatting posture, sometimes nasal pus flow out, ataxia, supine when accompanied by limbs strokes, molars, empty chewing, the most acute when the course of 1 day or 2 days will die, chronic disease course 1 to 5 days.

2. Acute septic streptococcosis

The mortality rate is higher than that of encephalitis type, and it is sudden and strong, often accompanied by symptoms of encephalitis, and sometimes sudden death without symptoms. When it appears: loss of appetite, similar to the symptoms of fever, eye film flushing, tearing, runny nose, body temperature of 40-42 °C, sometimes constipation or diarrhea symptoms, ear, abdomen, limbs, purple spots, it is also known as septic. The severely ill pigs showed broken lines, complicated late encephalitis symptoms, molars, empty chewing, ataxia, mouth at the time of death, and a pale red foam from the nose. There are symptoms of breathing difficulties before death. The most acute one-day death, usually two to four days will die.

Through the anatomy of death caused by acute septica streptococci, it is found that the disease is extremely damaging to the spleen, easily causing spleen edema, renal ischemia due to insufficient blood supply, necrosis due to liver detoxification, general anemia, tracheal hyperemia, and secondary respiratory disease syndrome. Therefore, in addition to targeted therapies, prevention of secondary infections is particularly important in this disease.

3. The difference between arthritis streptococcal disease and Haemophilus parasuis

Acute arthritis streptococci should be distinguished from the symptoms of chronic Parasitic Haemophilus. Arthritis streptococcus is a swelling of the limbs or limbs joints, there is a pain in the press of the fingers, claudication, loss of appetite, good times and bad, late fever. Paraquat bloodthirsty extremities sometimes appear purple spots, swollen joints, but generally the entire limb edema or edema above the joints, accompanied by respiratory symptoms, eyelid edema. Arthritis streptococci are acute and chronic, with a chronic course of up to 2 to 4 weeks and an acute course of 2 to 7 days.

4, chronic lymph abscess type streptococcus

This type is often accompanied by respiratory diseases. Lymph node swelling was evident, mostly in the neck, extending from the root of the ear to the neck of the throat, sometimes with arthritis streptococci in the early stages and secondary lymphatic abscesses in the later stages. Lymphatic abscesses severely affect feeding, breathing, and secondary respiratory diseases. Treatment of the disease should pay attention to the prevention of secondary infection, the treatment of abscess can appear broken pus phenomenon, pay attention to disinfection to prevent inflammation, to make conditioning mainly to make the local slowly improved. The general course is longer, sometimes up to 2 to 4 weeks.

Second, prevention of swine streptococcus disease

Vaccination is the best strategy for prevention, but it is not 100% preventive. Vaccination should also pay attention to ventilation within the circle, disinfection and insulation measures work. The germs were mainly infected through the nose, mouth, and the skin. The pigs were bitten by the attention of the pigs and immediately isolated.

Do a good job of drug prevention work on weekdays. Individual pigs with such symptoms should be isolated and the whole ring of ingredients should be prevented by broad-spectrum antibiotics (penicillins, doxycycline or sulfa drugs).

Third, the treatment of swine streptococcus disease

The effect of early treatment is obvious, and severe treatment of secondary infection is not effective in the later period. For abscesses, drain the pus when the abscess is enlarged, rinse with diluted potassium permanganate, apply iodine, and take precautions against inflammation to prevent secondary infection.

Early meningitis-type streptococci were found in the early stages of treatment with a large amount of sulfa drugs, but care should be taken to prevent sulfa drugs from attacking the liver. Therefore, when using sulfa drugs for treatment, drinking water should be added to the traditional Chinese medicines or western medicines for clearing the liver and gallbladder. Antihepatic and kidney burden caused by excessive urine and other symptoms, and appropriate to join antiviral drugs to prevent secondary infection.

For arthritis-type streptococci, large doses of penicillins such as ampicillin, high levels of ceftiofur sodium, benzathine, sulfadiazine, and sulfamethoxamide may be used in the early stage.

Amine drugs have strong penetrating power and have good curative effect on streptococcal bacteria, but they have relatively large side effects on the liver. Therefore, they need to be treated with drinking water or injections with drugs that help to stabilize the analgesic drugs.) Prevent secondary infection and early treatment is effective.

For the chronic arthritis type, patient treatment is needed to prevent secondary diseases while treating the condition. Generally, the period of chronic arthritis is 2 to 4 weeks. Therefore, there is no obvious effect on the treatment for two or three days. It requires long-term conditioning to prevent secondary symptoms. infection.

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