[Type B botulism in cattle, caused by feeding grass silage. Report of a case (author's transl)].

An outbreak of type B botulism in cattle, caused by feeding grass silage, is reported. The clinical features were completely identical with those in cases of type B botulism, which occurred when abnormal brewers' grains were fed. 36.5 mouse LD50 type B toxin was found to be present in each gramme of grass silage, the bacterial count being 10(4) Cl. botulinum type B per gramme.