Veterinary Archives, Vol. 85 No. 3, 2015.
Original scientific paper
Seasonal changes in enzyme activities and mineral concentrations in Holstein stallion blood plasma.
Lana Vranković
; Department for Physiology and Radiobiology, Faculty of Veterinary Medicine, University of Zagreb, Zagreb, Croatia
Jasna Aladrović
; Department for Physiology and Radiobiology, Faculty of Veterinary Medicine, University of Zagreb, Zagreb, Croatia
Blanka Beer-Ljubić
; Clinic for Internal Diseases, Faculty of Veterinary Medicine, University of Zagreb, Zagreb, Croatia
Maja Zdelar-Tuk
; Department for Bacteriology and Parasitology, Laboratory for Bacterial Zoonoses and Molecular Diagnostics of Bacterial Diseases, Croatian Veterinary Institute, Zagreb, Croatia
Zvonko Stojević
; Department for Physiology and Radiobiology, Faculty of Veterinary Medicine, University of Zagreb, Zagreb, Croatia
Abstract
The aim of this study was to determine seasonal changes in the activity of some enzymes and concentration of some minerals in Holstein stallions, as the literature provides insufficient data on that matter. Blood was collected from the jugular vein, with heparin as the anticoagulant. Blood plasma activities of aspartate aminotransferase (AST), alanine aminotransferase (ALT), γ-glutamiltransferase (GGT), alkaline phosphatase (AP), lactate dehydrogenase (LDH) and creatine kinase (CK) were determined. Also, concentrations of calcium, phosphorus, magnesium, iron and copper were measured. Most parameters determined in this study were highest in the summer period. A significant negative correlation between the concentration of calcium and inorganic phosphate was also determined. We can assume that seasonal changes in blood enzyme activities and blood mineral concentrations depend on muscle activity and balanced feed intake.
Keywords
seasonal changes; blood enzyme activities; blood mmineral concentration; Holstein stallion
Hrčak ID:
140851
URI
Publication date:
26.6.2015.
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