Automação microcontrolada da ventilação mínima em uma granja de frangos de corte a partir de sensores de amônia e dióxido de carbono

Abstract

Poultry farming is an essential sector of Brazilian agricultural production, significantly contributing to the national economy and experiencing continuous growth driven by technological advancements. Poultry houses play a fundamental role in this scenario, providing controlled environments through monitoring and climate automation systems. However, one of the main challenges faced is the high concentration of harmful gases, such as ammonia (NH£) and carbon dioxide (CO¢), which can compromise the health of both birds and workers. This study aimed to develop an automated prototype to control the concentration of these gases inside a poultry farm. The system was based on an Arduino Mega 2560, integrating MQ137 sensors for ammonia detection and MG811 sensors for carbon dioxide. The tests were conducted in a commercial poultry house in Céu Azul, Paraná, where the prototype was implemented to evaluate its effectiveness in controlling minimum ventilation. The results demonstrated that, in addition to maintaining the recommended cyclic ventilation, the system enabled a significant increase in ventilation time in response to detected gas concentrations. Thus, the prototype proved to be efficient in improving the poultry house environment, contributing to bird welfare and optimizing management.