Sheep responses to grazing ryegrass with AR37 endophyte

Abstract

Over 10 years the health and production of sheep grazing ryegrass with AR37 fungal endophyte was compared to those grazing Standard and AR1 endophytes, and endophyte-free, under four different trial protocols, including short and long term grazing, cultivar effects and seasonal differences. Sheep developed some ryegrass staggers on AR37 treatments but it was less frequent and usually less severe than on Standard.