2026. 157 | A preliminary study on the interplay between serum neurotransmitter levels and the behavioral phenotype of Canis familiaris: Federica Arrigo1, Raffaella Cocco2, Claudia Giannetto1, Giuseppe Piccione1, Alberto Cesarani3|4, Giuseppe Pulina3, Sara Sechi2, Francesca Arfuso1 | 1Department of Veterinary Sciences, University of Messina, Messina, Italy; 2Department of Veterinary Medicine, University of Sassari, Italy; 3Department of Agriculture, University of Sassari, Italy; 4Department of Animal and Dairy Science, University of Georgia, Athens, GA, USA. Journal of Biological Research - Bollettino della Società Italiana di Biologia Sperimentale. 99, s1 (Mar. 2026). DOI:https://doi.org/10.4081/jbr.2026.15409.