
%0 Journal Article
%A Paynter, DI 
%A Anderson, JW 
%A McDonald, JW 
%T Glutathione peroxidase and selenium in sheep. II.* The relationship between glutathione peroxidase and selenium-responsive unthriftiness in Merino lambs
%J Australian Journal of Agricultural Research
%D 1979/08/01
%V 30
%N 4
%P 703-709
%K 
%R https://doi.org/10.1071/AR9790703
%U https://www.publish.csiro.au/paper/AR9790703 
%X Low erythrocyte activities of the selenium-containing enzyme glutathione peroxidase were found in Merino lambs in an area of the Strathbogie Ranges in central Victoria where selenium-responsive conditions have previously been reported. Body weight gain trials conducted over 10 properties in the above area demonstrated that the severity of selenium-responsive unthriftiness was significantly correlated with the erythrocyte glutathione peroxidase activity (r = &ndash; 0.95, P <: 0.001). Positive body weight responses to selenium treatment were only observed in lambs with erythrocyte glutathione peroxidase activities less than 30 U/g Hb prior to selenium treatment. These findings indicate that measurement of erythrocyte glutathione peroxidase activity provides a convenient index of the selenium status in sheep.  ________________ *Part I, Aust. J. Agric. Res., 30: 695 (1979). 
