Pig farmers often find that some piglets suddenly have neurological symptoms during delivery. It may be difficult to tell whether it is caused by pig pseudorabies or streptococci encephalitis? The author summarized a few points on two infectious diseases that caused piglet neurological symptoms, hoping to bring some inspiration to pig farmers.
Pig pseudorabies is a viral infectious disease that is seriously harmful to all stages of pigs. In addition to causing piglets to have high fever of more than 40℃, hind limb paralysis, paralysis of splits, eight-character legs, and salivation, the onset positions are all kinds and strange. In addition, pseudorabies in pigs can also be accompanied by some symptoms such as stubborn diarrhea in piglets, severe cough and asthma in medium and large pigs, and sow reproductive disorders. , encephalitis streptococci are common in pigs of all ages, but most of them are caused by pigs. It mainly manifests as sepsis type, meningebranchitis type, arthritis type and suppurative lymphadenitis type.
So, how to differentiate and diagnose pest pseudorabies and streptococcal encephalitis?
From the perspective of onset age: Pig pseudorabies occurs early and occurs frequently before weaning. Streptococcus is late in the disease and is mostly after weaning.
From the perspective of mortality rate: If the neurological symptoms are caused by pig pseudorabies, the mortality rate is relatively high. Antibiotics for swine streptococcal disease, such as ceftifu , sulfadiazine , etc., have a certain cure rate.
From the perspective of clinical symptoms: The clinical symptoms of porcine encephalitis-type streptococci are mainly manifested as high stress in the diseased pigs, tight muscles throughout the body, stiff muscles, and sometimes in a Trojan-like shape, and lying on the side to do paddling exercises. The muscles of sick pigs with pseudorabies are soft and generally do not show stress.
From the perspective of pathological changes: There are white necrotic foci of needle tip size on the liver and spleen that can be found in pseudora rabies pigs, and there are a small number of bleeding points on the kidneys. However, the anatomy of the encephalitis streptococci showed a small amount of white cellulose exudation in the abdominal cavity, and hemorrhage and edema of the inguinal lymph nodes.
From the treatment method: When treating cerebral streptococci during treatment, since the diseased pigs are highly stressed, first aid should be first aid, bleeding at the tail tip, rinsing cold water to cool down, and then first aid with dexamethasone and adrenaline. After recovery, antibiotics such as sulfadiazine, cefoquinixine, and amoxicillin are more effective. Since pseudorabies is a viral disease, it is ineffective to treat it with antibiotics. Therefore, as long as pseudorabies treatment is treated with emergency immunization of pseudorabies vaccines, high-immunity serum and other methods. Generally speaking, pseudora 3-deletion genetically engineered vaccine should be selected for treating diseased pigs, such as the live pseudora vaccine SA215 strain and HB2000 strain.
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