Vol. 9, Issue 3, Part H (2024)

Dogs have various behaviors, such as docile, spoiled, quiet and fierce (Aggressive). Kintamani dogs have behavior that is not too aggressive but also not too tame. The results of previous research show that aggressive behavior is related to serotonin levels in the blood. Serotonin is a protein compound that functions as a neurotransmitter. The lack of research on serotonin levels that underlie aggressive behavior in Kintamani dogs, Bali, is the reason this proposal was made. The research will be carried out on 15 male and 15 female Kintamani dogs. The aim of the research was to determine the profile of normal serotonin levels in the blood of Kintamani dogs. The Elisa method is used to determine serotonin levels in the blood. Student's T-test was used to compare serotonin levels between males and females. A significance level of 5% was used. Data analysis using SPSS for Windows version 25. The results show serotonin levels in male Kintamani dogs 248.7 ng/ml, SD. 60.5 and females 303.2 ng/ml. SD. 58.9. The t test shows that it is significantly difference.