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Until recently the rectum was the main site of temperature measurement in a carcass, due to its wellknown heat loss mechanism. For more precise determination of time of death, researchers have begun to look for additional sites for temperature reading, such as the brain or soft tissues. hence the main objective of the study was to compare the temperature reduction in the soft tissues of internal organs with the decrease in rectal temperature in a dog carcass. as most literature data pertain to humans, whereas in animals such measurements are performed sporadically, we aimed to investigate the potential use of post-mortem measurement of the heart, lung and liver temperature in a dog in order to establish the time of its death. the material for the study consisted of 20 dog carcasses divided into two weight groups (small up to 15 kg and large over 15 kg). the difference in temperature reduction between the small and large dogs was statistically significant, while the type of organ was not found to affect the rate of the decline in temperature. key words: veterinary forensics; time of death; post-mortem temperature; heart; lung; liver  Introduction the phenomenon of death is an important subject of research in medical and forensic science. establishing the time of death, in both humans and animals, is crucial both for science and for the work of the judicial bodies (PIÓrkOWSkI et al., 2010; SZCZePaNIak et al., 2012). Determination of the exact time of death is a complex *Corresponding author: Piotr Listos, PhD, assistant Professor, University of Life Sciences in Lublin, Faculty of Veterinary Medicine, Department of Pathological anatomy, Gleboka 30, 20-612 Lublin, Poland, Phone: +48 81 445 6161; e-mail: piotr.listos@up.lublin.pl DOI: 10.24099/vet.arhiv.161118a

Temperature reduction in internal soft tissues in relation to rectal temperature in dogs in the early post-mortem period