【作者】 李娜； 艾磊； 沈晓昆； 戴网成； 颜培实；

【Author】 LI Na1, AI Lei 1,SHEN xiao-kun2, DAI Wang-cheng2, YAN Pei-shi1* (1. College of animal science and technology, Nanjing Agricultural University, Nanjing, 210095, China 2. .Sci-Technology Bureau of Zhenjiang; Zhenjiang 212003; China)

【机构】 南京农业大学动物科技学院； 江苏省镇江市科学技术局；

【摘要】 利用有机素材的自然发酵床进行养猪试验,监测补充锯末及停止养猪两种情况下的发酵床温度变化,剖析发酵床的特点;结果显示,补充木屑有利于发酵进行,床温升高了6～11℃;停止养猪53d后,床温下降了16℃;持续30℃的低温发酵。镇江市某猪舍,PM10浓度为(0.3924±0.0204)mg/m3,氨气浓度为(0.8925±0.0852)mg/m3。粪便干物质铜含量为(350.0±35.1)mg/kg,3年床的垫料中铜含量为(379.8±2.6)mg/kg,而1年床的上层垫料铜含量为(226.2±12.7)mg/kg,中层为(214.3±12.9)mg/kg。饲料低铜、粪便及其水分调整管理至关重要。更多还原

【Abstract】 In order to study the fermentation process of the deep-litter system,one deep-litter system model was established in laboratory and four pigs were raised on the litter.After adding sawdust,the temperature of the litter was raised about 6～11℃ and it declined 16℃ in 53 days after stop raising pig.The temperature of soil areas was higher than cleanness area.In Zhenjiang shows that the deep-litter system could improve the environment of pigpen and economize cost.The concentration of PM10 in door was (0.3924±0.0204)mg/m3 and the concentration of NH3 was (0.8925±0.0852)mg/m3,both lower than the agricultural standards.The concentration of cuprum in air-dried feces and the litter used 3years was (350.0±35.1)mg/kg and (379.8±2.6)mg/kg,and the concentration of cuprum in surface layer is 226.2±12.7 mg/kg which was higher than the middle layer’s in litter used 1year.更多还原