The adoption of the practices of well-being in animal husbandry has gained increased space due to proven improvement in production. Today, the condition of well being, may be extended to the human beings, that having good working conditions may reflect in a successful management of animals. Seeking to meet this new market trend, the aim of this study was to evaluate the ergonomic conditions of the environment and health in broiler sheds, equipped with three different minimal ventilation systems (positive, negative and natural) regarding workers' health. Associated with the effects of minimum ventilation systems evaluated the physical load of work, air quality, thermal environment, noise level and lighting besides postural and biomechanical analysis. After the data analysis, it was found that the shed equipped with positive ventilation system had an environment favorable for workers' health. Regardless of the ventilation system used, activities such as manual supply of feeder, cleaning of drinking water system and turning of the bed, may present risks of injury depending on how these activities are executed.
poultry; ergonomics; minimum ventilation
