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Effect of stocking density on litter composting in poultry raising

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Aerobic static litter composting, by using sawdust as main litter materials, simulating pig raising under three stocking density: 0。7 square meter per a pig, 1。0 square meter per a pig and 1。6 square meter per a pig, was studied in pilot scale for obtaining the best stocking density。 The indexes such as temperature, C/N and germination index were analyzed to examine effect of different stocking density on litter composting。 Results show that: litter composting under the compost with1。0 square meter per a pig can realize high-temperature aerobic composting, and its coli form bacteria index accords with hygienic standard。 Litter composting with1。0 square meter per a pig had a higher degree of maturity compared with the compost with 0。7 square meters per a pig and the compost with 1。6 square meters per a pig。

litter compostingpoultry raisingstocking density

Huo Peishu、Li Guoqiang、Li Ji

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College of Agricultural Resources and Environmental Sciences, China Agricultural University, Beijing 100193, China

Zibo(CN)

2011 International Conference on New Technology of Agricultural Engineering

p.463-468

2011