Poisoning — Worldwide/Unknown
There is no confusion over the reporting by Dr Rendell of “perennial ryegrass toxicosis” (PRGT) in the beef heifers (usually referred to as ‘ryegrass staggers’, but PRGT is now the preferred term as the implications of this condition are broader than just staggers). PRGT is common in this high winter rainfall area of Australia, more so in sheep than in cattle. It is more severe in certain years when seasonal conditions cause perennial ryegrass plants to become more stressed (remembering that
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