Plasma Neuromediators and The Enzymatic Profile of Sheep

Abstract

Pástorová B., Buleca J., Pilipãinec, E. ·vick˘, J. Szarek: Plasma Neuromediators and the Enzymatic Profile of Sheep. Acta Vet. Brno 2000, 69: 277-280.The study focused on the plasma norepinephrine and epinephrine and activity of selected plasma enzymes and LD isoenzyme spectrum in two sheep breeds (Slovak Merino and Improved Valachian) during the anoestrous period. Radioenzymatic method was used to determine the concentrations of plasma catecholamines. Statistically significant differences were found (P < 0.05) in concentrations of norepinephrine and epinephrine in favour of the Slovak Merino breed. Significantly increased enzyme activies (P < 0.01) were observed in plasma aminotransferases ALT, AST and alkaline-phosphatase (ALP) in Slovak Merino. In improved Valachian, statistically significant changes (P < 0.01) were recorded in the activity of lactate dehydrogenase (LD). The LD isoenzyme spectrum showed statistically significant differences (P < 0.05) in the activity of isoenzyme LD2 and highly significant differences (P < 0.01) in the activity of isoenzymes LD4 and LD5 in favour of Improved Valachian sheep. These results may help to identify more accurately the metabolic constitutional and production types of sheep in different breeds.