| pea mania: deranged behaviour in cattle grazing a pea crop (pisum sativum var arvense). | hypersensitivity to external stimuli, progressing in some animals to manic behaviour, occurred in a cattle herd that grazed a crop of field peas (pisum sativum var arvense) in the pre-flowering stage. haematological and biochemical analyses eliminated hypomagnesaemia and ketosis as diagnoses. other than two steers euthanased due to injuries sustained during manic episodes, all affected animals survived, recovering over 3 days when moved to alternative pasture. no necropsies were conducted. no mi ... | 2002 | 12465813 |