title: [Microbial contamination of the air in the commercial production of poultry meat].
abstract: Microbiologic studies were carried out on industrial premises for the raising of broiler birds on deep litter over a flooring area of 2000 m2 at mechanical ventilation of negative pressure. The microbial count was established through culturing in meat-and-peptone agar regarding the presence of coli bacteria, microscopic fungi, hemolytic cocci and Salmonellae in the air. Studies were also performed to establish the contamination of the atmospheric air at a distance of 10 m surrounding the premises, of the litter as well as of the feed and the soil in immediate proximity to the buildings. It was found that as a result of raising the 'biologic loading' of the ecotope by 60 per cent the microbial contamination of the air in the industrial buildings rose. The basic sources of contamination were the deep litter, the atmospheric air introduced by the ventilation system, the soil, and the feed.
mesh_terms: D000391:Air Microbiology; D000822:Animal Husbandry; D000818:Animals; D001419:Bacteria / Q000302:isolation & purification; D002031:Bulgaria; D002645:Chickens; D004463:Ecology; D005658:Fungi / Q000302:isolation & purification; D006799:Housing, Animal; D008834:Microclimate
vernacular_title: Mikrobno zamŭrsiavane na vŭzdukha pri promishleno proizvodstvo na ptiche meso.