What could be the cause and cure for ‘shaker pigs’?

There is no cure for these congenital tremors. Mildly affected pigs recover on their own. Some work was published in 1994 that pointed to Type 1 Circovirus as the cause of ‘shaker pigs’. This is not the same as Type 2 that is believed to cause the post-weaning multisystemic wasting syndrome in growing pigs. The work from 1994 has never been repeated. The ‘shaker pigs’ are usually from low parity sows of gilts and the sow usually does not have another litter of ‘shaker pigs’ which makes it likely that it is caused by some sort of virus that the sow builds an immunity to. It is recommended not to keep any of the pigs from litters that are affected for replacement animals.