Izvorni znanstveni članak
Influence of broilers age on airborne pollutants content in poultry house
Marija Vučemilo
Bara Vinković
Kristina Matković
Sažetak
Intensive poultry breeding is, among others, characterized by considerable air contamination with microorganisms, dust, endotoxins and various gases, which can exert infectious, immunosuppressive, allergic and toxic effects on human and animal health. Houses for broilers have the highest concentration of microorganisms in the air, which is specially expressed in the last week of fattening.
In the present study, the level of atmospheric contamination with microorganisms and noxious gases was assessed during intensive chicken breeding. The chickens were kept in deep, 15-cm litter, at a population density of 20 chicken/m2.
Study results showed that number of microorganisms increased with the age of poultry (3.22 x 103 cfu/m3 do 6.40 x 107 cfu/m3 air). Considering gas air pollutants values for ammonia from initial 0 ppm, in the fifth week rose to 14.8 ppm. Values for carbon dioxide were from 0,10 vol % at the beginning of fattening to 0,19 vol % at the end.
Ključne riječi
microorganisms; dust, harmful gases; chicken fattening
Hrčak ID:
3628
URI
Datum izdavanja:
7.3.2006.
Posjeta: 2.214 *