Which condition can promote the occurrence of aspergillosis in raptors?

Aspergillosis is a fungal infection caused by Aspergillus species, and its occurrence in raptors is significantly influenced by environmental conditions. The correct choice highlights the role of warm, moist, and poorly ventilated facilities in promoting this condition.

Warm, moist environments provide the ideal conditions for the growth of fungi, including Aspergillus. In these settings, stale air and humidity can lead to an accumulation of spores, which raptors may inhale or ingest. Poor ventilation exacerbates the situation, as it prevents the dissipation of these spores and the overall moisture, allowing the fungal population to thrive. Raptors, being sensitive to their surroundings, are particularly at risk in such environments where their respiratory conditions can be compromised, leading to infection.

In contrast, facilities that are cool, dry, and well-ventilated significantly reduce the risk of fungal growth, while open-air environments with ample sunlight help to further limit the presence of harmful spores. Similarly, large cages with high airflow promote ventilation, which helps keep the environment dry and minimizes the chances of Aspergillus proliferation. Understanding these environmental factors is critical for anyone involved in falconry, as it helps in preventing aspergillosis among raptors.