Piglet congenital tremor is an infectious disease of piglet rearing caused by a long-standing natural tremor virus in nature. This disease mainly occurs in piglets born soon, with limbs, head or
Rhythmic tremors occur throughout the body as clinical features. Usually the symptoms of early birth are heavy, and the symptoms of later birth are minor. Adult pigs are occult or chronically infected.
There was no abnormality in pregnant sows, and newborn piglets tremored just after delivery to a few hours, accompanied by weakness of the hind limbs, ataxia, part or all of the disease in a litter of piglets, but light weight
The degree of difference, in general, some patients with mild symptoms. All patients had severe symptoms. Tremor shows a variety of dance movements; and tremors are persistent. The frequency of tremors in the recumbent bed decreases and sleeps.
When tremors stop during sleep, but after standing up and tremors, severe shocking forelimbs are often dog-riding, sick pigs can not move difficult to move the milk; by noise, scared, chilling, excitement and other stimulus when heavier. disease
Cheng varies from pig to pig. Lightness usually returns to normal within 2-8 weeks. Heavily often due to severe tremors or paralysis of limbs, paralysis, breastfeeding difficulties or starvation due to movement disorders by sows crushed. Vibrators disappear in excitement
Or under stress conditions, it can still be re-infected, and the general prognosis of living pigs living a week after birth is good.
There was no significant change in the eyes of neonatal piglets at the time of necropsy. For histological examination of the nervous system, myelin sheath insufficiency was observed in the central nervous system, cerebellar hypoplasia, and cerebral perivascular spaces, especially
Brain base congestion, bleeding and other diseases.
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