# Canine Euthanasia’s Trend Analysis during Thirty Years (1990–2020) in Italy: A Veterinary Hospital as Case Study

## TL;DR

This study analyzed trends in dog euthanasia in an Italian veterinary hospital from 1990 to 2020, showing changes after a law recognized animals as sentient beings.

## Contribution

The study provides new insights into how animal welfare legislation influenced euthanasia decisions in veterinary practice over 30 years.

## Key findings

- Euthanasia cases increased significantly over the 30-year period (p = 0.027).
- Dogs euthanized after 2005 were older, more often crossbred or stray, and more frequently neutered.
- Neoplastic diseases were more common as a cause of euthanasia in the post-law period.

## Abstract

This study illustrates the data relating to euthanasia in a canine population during the years 1990–2020 in a small animals’ veterinary hospital. The overall period examined has been split into two terms (T1 = 1990–2004 and T2 = 2005–2020) based on Law 189/2004 coming into force, as this law made changes to the Criminal Code regarding offenses against animals and the related penalties. In comparing the significant differences of the two terms, variables such as age, breed, reproductive status, and ownership were considered. Law 189/2004 has played an important role in Italy by acknowledging animals as sentient beings and, therefore, influencing the decision-making process of euthanasia.

This study aimed to investigate changes in the number of, and reasons for, requests for dogs’ euthanasia over the last thirty years. Data (breed, age, gender, neuter status, manner, and cause of death) from dogs’ euthanasia registered between 1990 and 2020 in a small animals’ veterinary hospital were analyzed. The overall period examined has been split into two terms (T1 = 1990–2004 and T2 = 2005–2020) considering the introduction and enforcement of Law 189/2004. During the whole period examined, a significant increasing trend in euthanasia cases has been recorded (p = 0.027). Comparing the two terms, we observed significant differences regarding variables such as age, breed, reproductive status, and ownership. The number of euthanized dogs was significantly higher in T1 than in T2. Dogs euthanized in T2 were older than dogs in T1. A high percentage of the euthanized dogs were crossbred and stray dogs. Additionally, the number of neutered/spayed dogs was significantly higher. Regarding the cause of death, a significantly higher percentage of neoplastic processes was detected in T2. The data here reported suggest a potential influence of Law 189/2004. This law in Italy has proven to be a legal milestone that has influenced the decision-making process between euthanasia and natural death.