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Tasistro - 2007

Ammonia emissions from broiler litter: response to bedding materials and acidifiers

1. In a pen study, NH3 flux estimates were performed when clean wheat straw or wood shavings were used as bedding materials in combination with two NH3 control amendments: sodium bisulphate and a commercial premix of phosphoricþhydrochloricþcitric acids.
2. Ammonia emissions from wood shavings were 19% greater than from wheat straw around waterers, but statistically similar around feeders. These results could be due to the greater caking observed when wheat straw was used.
3. Sodium bisulphate reduced NH3 emissions significantly only in the first half of the rearing period; the loss of efficacy in the second half resulted in total NH3 volatilisation not statistically different from the untreated control. The treatment containing phosphoricþhydrochloricþcitric acids did not have a significant effect in decreasing NH3 emissions.
4. Bird mortality was not affected by the treatments, but broiler weight gain when wheat straw was used was significantly lower than with wood shavings, which could have been caused by the greater caking observed with wheat straw.

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26 October 2010

 

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