Background:

as there may be vulnerability of poultry workers to the temperatures inside the aviaries compared to those outside, it is important to analyze their occupational exposure in terms of thermal comfort.

Objectives:

evaluate the thermal comfort in poultry sector workers in indoor and outdoor environments and analyze its possible relationship with the chicken developmental stage.

Methodology:

the study carried out was observational, cross-sectional, with a convenience sample of 6 workers from 8 aviaries. Data collection was carried out through a questionnaire addressed to all workers followed by the measurement of Predicted Mean Vote (PMV) and Predicted Percentage of Dissatisfied (PPD).

Results:

in 8-day-old chicken aviaries there was a complete agreement between the values of PMV and PPD, in the 35-day-old aviaries a significant agreement and in the 85-day-old a considerable agreement.

Conclusion:

there is thermal discomfort in the assessed workers, especially in those who work in aviaries for chickens with 8 and 35 days of age. Thermal discomfort was worse in 8-day-old chicken aviaries, thus revealing the relationship between the thermal comfort index and the chicken development stage.