According to Ross's Broiler Handbook, ventilation is the main way of controlling the birds' environment: It helps to maintain acceptable air quality while removing moisture, limiting the build-up of potentially harmful gasses and keeping birds within comfortable temperatures.
Ngokusho kwe-Ross's Broiler Handbook, ukupholisa umoya kuyindlela eyinhloko yokulawula imvelo yezinyoni: Kuyasiza ukugcina ikhwalithi yomoya evumelekile ngenkathi isusa umswakama, ukunciphisa ukwakheka kwezinto ezingase zibe yingozi kanye nokugcina izinyoni ngaphakathi kwamazinga ashisayo.