AUTHOR(S) / АУТОР(И): Marko Cincović 
, Nikolina Milošević , Mira Majkić , Jovan Spasojević , Nada Plavša
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DOI: https://doi.org/10.46793/SBT26.323C
ABSTRACT / САЖЕТАК:
Preanalytical factors strongly influence the accuracy of bovine blood analyses, encompassing herd management, feeding, sampling, transport, and laboratory processing. As most laboratory errors arise in this phase, assessing preanalytical variability is critical. This study presents a farm-to-laboratory approach using a structured three-part questionnaire to evaluate errors. The 15-question survey targets farmers, field veterinarians, and laboratory veterinarians. Farmer questions address feeding, fasting, lactation stage, body condition, stress, and herd health. Field veterinarians report sampling time, tube type, venipuncture technique, hemolysis prevention, transport, and documentation. Laboratory veterinarians cover centrifugation, serum handling, storage, quality control, calibration, and automation. Responses generate a composite preanalytical risk score (low, moderate, high), enabling identification of critical control points, corrective actions, and improved reliability of dairy cattle metabolic profiling.
KEYWORDS / КЉУЧНЕ РЕЧИ:
cow, metabolic profile, preanalytical errors
ACKNOWLEDGEMENT / ПРОЈЕКАТ:
The research presented in this article is part of project no. 003785865 2025 09418 003 000 000 001/1 financially supported by Provincial Secretariat for Education and Scientific Research.
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