项目概况：利用家畜粪便制造的有机复合肥在提高土壤肥力的效果上远远超过化肥。
Project Overview: the effectiveness of organic fertilizer made of animal husbandry manure far surpasses chemical fertilizer to improve soil fertility.
该试验旨在研究家畜粪便的物理指标与其肥料成分含量的关系，用来预测猪粪便肥料成分含量。
This experiment is to study the relationships between nutrient contents and physical properties of swine slurries in order to estimate fertilizer value of swine slurries.
但该协议没有涵盖氧化亚氮，这种气体是由土壤中的肥料、家畜粪便、污水处理、燃烧及工业生产产生的。
But the treaty did not cover nitrous oxide, which is generated by fertilisers in the soil, livestock manure, sewage treatment, combustion and industry.
他们应特别小心生肉、家畜、人类粪便和湖水或河水。
They should be especially careful around uncooked meat, domestic animals, human excrement and lake or river water.
家畜的粪便也是一个问题，其排泄时产生大量甲烷气体，粪便会被雨水冲走，有可能污染河流、湖泊、甚至地下水。
Manure is also a problem, since it gives off methane and can be washed away by rain, potentially poisoning rivers, lakes or even groundwater.
“养鱼的池塘里投放的经常是家禽和家畜的粪便，”报告说。
"Fish are often raised in ponds where they feed on waste from poultry and livestock," the report said.
这是很重要的工作的人与家畜必须知道的风险饮用水未经处理的牛奶和接触到的尘埃，动物粪便和胎盘。
It is important for people working with farm animals to be aware of the risks of drinking untreated milk and exposure to dust from animal excreta and afterbirth.
美国有数亿头家畜，其粪便能生产大约千亿度电，足以为数百万家庭和办公室提供电力。
The hundreds of millions of livestock inhabiting the US could produce approximately 100 billion kilowatt hours of electricity, enough to power millions of homes and offices.
例如，动物粪便和家畜消化系统排放甲烷。
For example, animal waste and cattle digestive systems release methane gas.
例如，动物粪便和家畜消化系统排放甲烷。
For example, animal waste and cattle digestive systems release methane gas.
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