| dc.description.abstract | One of the key factors for the success of broiler production is the selection of an
adequate bedding material. In an intensive broiler production system, broilers are
raised under a deep litter system that has high absorption potential. Poultry
production has been developing rapidly in recent years and with it the growing
concern for the waste disposal and harmful gases emission. In poultry rearing
bedding material plays a very important role. Emission of harmful gases affects
both birds and workers. The aim of this study was to estimate the emission levels
of harmful gases, such as ammonia (NH3), carbon dioxide (CO2) and hydrogen
sulfide (H2S) using six different litter types. Measurement of harmful gas
concentrations were performed weekly from each treatment. The concentration of
ammonia was first recorded above the permitted value of 20 ppm at day 28.
Treatment with the lowest ammonia concentration at the end of the experiment
was observed in chickens reared on the mixture of 30% chopped wheat straw,
30% wood shavings, 30% peat, 10% zeolite, nonpelletized form with significant
difference (P > 0.05). During the fattening period the concentrations of measured
carbon dioxide did not exceed the permitted level of 3000 ppm, while hydrogen
sulfide was not detected. The lowest carbon dioxide emission at the end of the
experiment was measured in the treatment with pellets consisted of 80% wheat
straw, 10% zeolite, 10% charcoal. The mentioned research indicates the influence
of different materials and formulations used in broiler production. Due to the fact
that broilers are in constant contact with the litter, careful selection, adequate
management, proper storage and proper use contributes to better and higher
quality air inside the broiler house, which leads to lower gases emission. | en_US |
