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New Zealand Veterinary Journal Volume 30, 1982 - Issue 11
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Correspondence

Ryegrass Staggers: The Presence of Lolitrem Neurotoxins in Perennial Ryegrass Seed

R.T. Gallagher Ruakura Agricultural Research Centre Ministry of Agriculture and Fisheries, Private Bag, Hamilton
,
A.G. Campbell Ruakura Agricultural Research Centre Ministry of Agriculture and Fisheries, Private Bag, Hamilton
,
A.D. Hawkes Ruakura Agricultural Research Centre Ministry of Agriculture and Fisheries, Private Bag, Hamilton
,
P.T. Holland Ruakura Agricultural Research Centre Ministry of Agriculture and Fisheries, Private Bag, Hamilton
,
D.A. McGaveston Ruakura Agricultural Research Centre Ministry of Agriculture and Fisheries, Private Bag, Hamilton
,
E.A. Pansier Ruakura Agricultural Research Centre Ministry of Agriculture and Fisheries, Private Bag, Hamilton
&
I.C. Harvey Plant Health Diagnostic Station, P.O. Box 24, Lincoln
 show all
Pages 183-184 | Published online: 23 Feb 2011
 
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Abstract

Extract

Sir:- Recently, two potent neurotoxins named lolitrem A and lolitrem B were isolated from herbage collected from pastures on which the livestock disorder ryegrass staggers (RGS) occurred.Citation et al.(1) We now wish to report that samples of perennial rygrass (Loliun yeretzrze L.) seed obtained from several locations in New Zealand contained potent neurotoxins which include lolitrem A and lolitrem B. Further, when pellets made from lolitrem neurotoxin-containing seed were fed to sheep, symptoms indistinguishable from those of severe, natural RGS were induced in four sheep, and mild symptoms in three sheep.

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