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| Degradation of Organic Components in Pig Bio-bed Materials |
| Received:July 03, 2014 |
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| KeyWord:pig bio-bed;bedding materials;organic components;degradation |
| Author Name | Affiliation | E-mail | | YIN Wei-qin | College of Environmental Science and Engineering, Yangzhou University, Yangzhou 225127, China | | | LI Jian-hui | College of Environmental Science and Engineering, Yangzhou University, Yangzhou 225127, China | | | MA Han | College of Environmental Science and Engineering, Yangzhou University, Yangzhou 225127, China | | | GUO Hai-ning | College of Environmental Science and Engineering, Yangzhou University, Yangzhou 225127, China | | | LI Mai-jun | College of Environmental Science and Engineering, Yangzhou University, Yangzhou 225127, China | | | WANG Xiao-zhi | College of Environmental Science and Engineering, Yangzhou University, Yangzhou 225127, China
Jiangsu Collaborative Innovation Center for Solid Organic Waste Resource Utilization, Nanjing 210095, China | xzwang@yzu.edu.cn | | FENG Ke | College of Environmental Science and Engineering, Yangzhou University, Yangzhou 225127, China
Jiangsu Collaborative Innovation Center for Solid Organic Waste Resource Utilization, Nanjing 210095, China | | | GU Hong-ru | Institute of Animal Science, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China | |
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| Abstract: |
| Selection and management of bedding materials are important not only for the popularization of bio-bed pig raising, but also for effective utilization of bedding materials. Organic components of bedding materials, including cellulose, hemicellulose, lignin and C/N, were measured by continuously sampling at different depths of fermentation beds for 4 months in a pig-raising base, Liuhe Nanjing. The results showed that C/N was affected by material composition. The decline rates of C/N in the materials containing rice husk and wood sawdust were faster with adding distillers(Litter Ⅱ) and fungus chaff(Litter Ⅲ) than those without distillers or fungus chaff(Litter Ⅰ). During the experiment of 117 days, cellulose, hemicellulose and lignin in Litter I were decreased by 36.12%, 25.12% and 18.35%, respectively, which were respectively less than those in Litter Ⅱ(48.37%, 48.16%, 31.66%) and Litter Ⅲ(49.42%, 56.6%, 32.69%).The percentage of cellulose of total organic components reduced by 1.77%, 3.11%, 2.19%, in Litter I, Litter Ⅱ and Litter Ⅲ, respectively. The percentage of hemicellulose in Litter Ⅰ increased by 0.66%, while that in Litter Ⅱ and Litter Ⅲ decreased by 2.57% and 3.38%. However, the percentages of lignin increased by 5.36%, 5.26%, and 3.88% for the LitterⅠ,Ⅱ, and Ⅲ. |
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