Ammonia in finnish poultry houses : effects of litter on ammonia levels and their reduction by technical binding agents

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      <subfield code="a">The purpose of this study was to assess the reduction of ammonia release from poultry manure by chemical methods using different litter materials. It also was important to improve the agricultural value of the litter manure. For comparison, the ventilation of the poultry houses also was determined by the tracer gas technique. Cage and floor-laying houses were studied</subfield>
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      <subfield code="g">Vol. 50, nº 4, April 1989 ; p. 210-215</subfield>
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