The liquidation of poultry breeding as a result of dangerous disease outbreak entails significant economic losses. In poultry, health flock assessment with focusing on temperature changes is complicated and time demanding, thus the application of a non-invasive infrared thermography (IRT) is one of the methods to simplify health monitoring for vets and farmers. Following experiment aimed to identify the problems associated with IRT data collection and to develop a reproducible method of early diagnosis of poultry diseases to help stop its spread.