Incidence of So-called Robot Disease in Cattle in Japan

Abstract

A nation-wide survey was conducted on so-called robot disease in growing and fattening cattle in Japan. Over a period of 5.5 years about 3, 000 cattle were affected with this disease on about 900 farms. They were about 2% of all the cattle raised on these farms. They manifested clinical symptoms 4-9 months after introduced into these farms, when about 80% of them weighed 200-400kg. These symptoms were curved back, extended and stiffened extremities, extended and deformed hoofs, disturbance of gait. and asta.sia.