RT Journal Article T1 Reference Intervals for Trace Elements in Canine Plasma A1 Larrán Franco, Belén A1 López Alonso, María Marta A1 Miranda Castañón, Marta Inés A1 Suárez Rey, María Luisa A1 Orjales Galdo, Inmaculada K1 Minerals K1 Metals K1 Toxic elements K1 Heavy metals K1 Canine K1 ICP-MS AB Trace elements are essential for organisms, and their involvement in diverse diseases is increasingly recognised. Interest is increasing in veterinary medicine, particularly in relation to canine diseases. However, reference intervals for trace elements in dogs remain scarce. Plasma samples from 140 dogs were analysed by inductively coupled plasma mass spectrometry to determine the levels of 13 trace elements. Reference intervals (µg/L) were established for the following 12 elements: As, 0.417–8.17; Co, 0.039–1.33; Cr, 2.41–13.3; Cu, 296–790; Fe, 846–3643; Hg, 0.235–2.33; Ni, 0.567–9.04; Mn, 1.90–7.28; Mo, 1.43–12.7; Pb, 0.285–2.82; Se, 200–434; and Zn, 415–1095. However, Cd was below the limit of quantification in 77% of the samples. No differences in trace element concentrations were observed in relation to breed or reproductive status. Statistically significant differences were found in relation to sex (Cu, Mo, Zn), age (Co, Cu, Mo, Mn, Se, Zn), and size (Cu, Mo, Se, Zn); however, the magnitude of these effects varied among elements and was generally weak. Nevertheless, these factors should be considered when assessing trace element status. These reference intervals constitute an important resource for both clinical evaluation and future research. PB MDPI YR 2026 FD 2026-01-15 LK https://hdl.handle.net/10347/46156 UL https://hdl.handle.net/10347/46156 LA eng NO Larrán, B., López-Alonso, M., Miranda, M., Suárez, M. L., & Orjales, I. (2026). Reference Intervals for Trace Elements in Canine Plasma. Animals, 16(2), 264. https://doi.org/10.3390/ani16020264 NO This research was carried out within the IMedA Research group of the University of Santiago de Compostela (USC) that belong to the “Grupo de Potencial Crecimiento” funded by GAIN (Axencia Galega de Innovación; grant number ED431B 2023/008). DS Minerva RD 7 jun 2026