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Bioresour Technol. 2002 Sep;84(2):203-5.

Effect of ambient temperature on losses of volatile nitrogen compounds from stored laying hen manure.

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1
Harper Adams University College, Newport, Shropshire, UK.

Abstract

Eight one tonne lots of laying hen manure were stored in individual, environmentally controlled chambers for 18-weeks at one of four constant temperatures: 12, 15, 20 and 25 degrees C. The losses of volatile nitrogen compounds, ammonia, and changes in dry matter and pH were measured during the storage period. There was a linear (P < 0.001) loss of nitrogen from the manure over the 18-week storage period. This loss represented approximately 60% of the initial nitrogen present in the manure. The rate of nitrogen loss increased non-linearly (P < 0.05) with increasing storage temperature. Poultry housing systems that provide low temperature storage of manure are recommended to reduce the volatile nitrogen losses from egg-laying enterprises.

PMID:
12139339
[Indexed for MEDLINE]
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