Dynamic and 3-D spatial variations in manure characteristics in two commercial manure-belt laying hen houses.
作者： Yansen Li , Ji-Qin Ni
DOI: 10.1016/J.JHAZMAT.2020.123581
关键词: Moisture 、 Manure 、 Laying 、 Ventilation (architecture) 、 Environmental science 、 Animal science 、 Poultry house 、 Total dissolved solids
摘要: Abstract Animal manure could be hazardous to human and animals if not managed properly. Laying hen in two commercial manure-belt houses was sampled seven events over years. A total of 124 samples taken randomly-selected 3-D space with 24 subspaces, composed 3 sections × 4 sides 2 floors the houses. The were analyzed for pH, solids (TS), ammonia (NH3). Manure characteristics demonstrated large temporal variations that correlated indoor temperature ventilation rate quasi seasonal patterns. Variations NH3 larger than TS pH. varied substantially but no patterns seen among four between floors. However, different ages along belt moving direction showed differences NH3. on belts loss approximately 2.5 % moisture 0.2 concentration per day.
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