| staggers induced by consumption of perennial ryegrass in cattle and sheep from northern california. | staggers was diagnosed in sheep and cattle from the northern california coast. the diagnosis was made on the basis of history of ingestion of perennial ryegrass (lolium perenne) stubble, clinical signs of transient ataxia, which was aggravated by stimulation, and nearly complete recovery after removal of ryegrass as the primary forage. morbidity was high, but death did not occur in any affected animals. the toxic endophyte, acremonium lolii, was in most lower leaf sheaths from the ryegrass. inje ... | 1991 | 1917658 |