ANTIOXIDANT PARAMETERS FOR NEWBORN CALVES AND FOALS: A COMPARATIVE STUDY
Gaál, T. 1, Vajdovich, P. 1, Balogh, N. 1, Ribiczeyné, Sz. P. 1, Sümeghy, L. 2
1 Veterinary Faculty
1Szent István University
István u. 2
H-1078. Budapest
Hungary
2 State Stud-Estate Corporation of Mezőhegyes
Hungary
This paper was originally presented at the 2nd Middle-European Congress for Buiatrics held in Stará Lesná, The High Tatras, from the 10th to 13th May 2000
Summary
Some blood parameters of the antioxidant system were studied in newborn Holstein-Friesian calves and in Hungarian racing horses and trotters. Blood samples were taken five times during the first three weeks of their life. In the red blood-cell homogenate the rate of lipidperoxidation (MDA) and activity of two antioxidant enzymes (SOD, GSH-Px) were evaluated. Comparison of the results in the two species showed significant differences in all the parameters measured, which can be explained by species and differences in methodology. In both species the newborn had powerful antioxidant systems, therefore the atmospheric oxygen tension caused only temporary changes in their antioxidant parameters, which were more substantial in calves than in foals. The authors emphasize the essential need for standardizing the methodology in investigations of the antioxidant system.
