[Dynamics of the clinical and pathologico anatomic changes in spontaneous congenital tremor in swine]

Clinical and morphological studies were carried out on the dynamic of the changes taking place in cases of spontaneous congenital tremor in pigs. It was established that tremor set in immediately after parturition. With the advancement of age the force and intensity of the muscle contractions dropped. The signs of tremor persisted as long as after the fifteenth month of age. The affected animals exhibited delayed growth and development. Morphologically, there was hypoplasia of the cerebellum and the lower portions of the central nervous system. The changes in these organs were found even after the fifteenth month of age.