The effect of animal age on air pollutant concentration in a broiler house
2007
Vucemilo, M.,University of Zagreb (Croatia). Dept. of Animal Hygiene | Matkovic, K.,University of Zagreb (Croatia). Dept. of Animal Hygiene | Vinkovic, B.,Croatian Veterinary Inst., Zagreb (Croatia). Dept. of Zoohygiene and Livestock Technology | Jaksic, S.,Veterinary Station of Zagreb City (Croatia). ZIN-LAB Lab. for Foodstuffs of Animal Origin | Granic, K.,Veterinary Station of Zagreb City (Croatia). ZIN-LAB Lab. for Foodstuffs of Animal Origin | Mas, N.,University of Zagreb (Croatia). Dept. of Animal Hygiene
Concentrations of airborne particles of various origin (dust, bacteria, fungi), ammonia and carbon dioxide was determined in intensive broiler breeding facilities in order to evaluate the effect of the age of broiler chickens. The investigations were conducted in a poultry house on a family farm in the area of moderate continental climate during spring 2006. The air concentration of bacteria ranged from 17,000 to 220,000 cfu/cubic m, of fungi from 9,800 to 85,000 cfu/cubic m, of dust from 1.8 to 4.8 mg/cubic m, and of ammonia from 4 to 27.47 ppm. Total dust and fungi concentrations measured at the end of the fattening period were almost identical to the initial ones, whereas the concentrations of bacteria and ammonia showed a sinusoidal rise. In general, the analyzed air pollutants reached relatively high levels in the mid-fattening period and also showed significant differentiation between fattening periods as demonstrated by the t-test.
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