Assessment of microclimate and greenhouse gas emissions in dairy farms

This research was conducted to determine greenhouse gas (GHG) emissions and air quality parameters on dairy farm in Slovenia. A total of 48 measurements were taken, including 40 inside the barn at two different heights (1.5 m and 0.2 m) and 8 measurements outside. The study focused on the concentrations of water vapor (H2O), carbon dioxide (CO2), methane (CH4), nitrous oxide (N2O), and ammonia (NH3) to assess their distribution and potential environmental impact. The measured values of microclimatic parameters and gases were in accordance with the limits of optimal values, except for THI values that indicated the onset of mild heat stress. Based on the results, it was concluded that while GHG concentrations vary depending on location and measurement conditions, proper barn design and management can help maintain air quality within acceptable limits. Several factors influenced the results, including herd size, ventilation efficiency, barn management practices, and air circulation at the time of measurement. The study highlighted the importance of optimizing ventilation and manure management to reduce high gas concentrations inside dairy barns.