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安全环保型蛋鸡饲料配方的筛选与应用 被引量:3
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作者 杨俊琦 蒋万春 +1 位作者 王付平 白兰所 《饲料工业》 北大核心 2011年第19期37-39,共3页
在优化出海兰灰蛋鸡氨基酸模型的基础上,确立了日粮低蛋白水平15%、14%的试验;集成和优化了蛋鸡安全环保型日粮的配方和添加剂组合(包括复合酶、植酸酶、益生素、果寡糖、除臭灵等),开发出了产蛋鸡安全环保1%预混合饲料,使用该环保添加... 在优化出海兰灰蛋鸡氨基酸模型的基础上,确立了日粮低蛋白水平15%、14%的试验;集成和优化了蛋鸡安全环保型日粮的配方和添加剂组合(包括复合酶、植酸酶、益生素、果寡糖、除臭灵等),开发出了产蛋鸡安全环保1%预混合饲料,使用该环保添加剂,在生产性能不降低的前提下,可使蛋鸡粪便氮、磷排出量分别降低;同时蛋壳质量和鸡蛋品质得到改善。 展开更多
关键词 理想氨基酸 环保添加剂 元素排放量
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Atmospheric Mercury Pollution in Beijing
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作者 Guo Hongling1,2 1.Institute of Forensic Science,Ministry of Public Security,Beijing 100038,China 2.Chinese People’s Public Security University,Beijing 100038,China 《Chinese Journal of Population,Resources and Environment》 2009年第3期92-96,共5页
The atmospheric mercury pollution in Beijing is a serious problem.Atmospheric mercury has three sources:natural emission,anthropogenic emission and previously deposited mercury reemission or recycling,composing elemen... The atmospheric mercury pollution in Beijing is a serious problem.Atmospheric mercury has three sources:natural emission,anthropogenic emission and previously deposited mercury reemission or recycling,composing elemental mercury,divalent mercury and particulate-phase mercury.Many studies showed that mercury in Beijing's air was higher than the general level of mercury concentration in the atmosphere.Mercury emission sources were discussed.Industrial emissions,coal burning,vehicle exhaust emissions and waste incineration were thought to be the main sources of atmospheric mercury pollution in Beijing.And also meteorology has an effect on atmospheric mercury concentration in Beijing.Measures have been taken to control the emission of mercury into the air in recent years. 展开更多
关键词 ATMOSPHERE MERCURY BEIJING
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