Livestock and poultry breeding ; manure treatment stage ; beef cattle scale

Unit processes/Materials production/Agricultural production means
Reference year: 2014 -

Livestock and poultry manure treatment methods include dry cleaning manure, water flushing manure, bedding material treatment. The treatment method of water flushing manure is strictly restricted by the "Water Pollution Prevention and Control Action Plan" (referred to as "Water Ten") [88] and the new "Environmental Protection Law", which shows a downward trend year by year; The bedding method has less pollutant discharge and less harm to the environment, and can be directly applied to the field after simple composting, but it is highly restricted by economic cost, and is commonly used in poultry house manure treatment. The environmental harm of dry cleaning is between the two, and the economic cost is lower [89,90]. When using this data set for Life Cycle Assessment, users should account for the method-specific environmental and economic impacts of manure treatments in the context of beef cattle scale operations. Users should also take into consideration the regulatory environment, as the usage of water flushing manure treatment is declining due to stringent laws such as the 'Water Pollution Prevention and Control Action Plan' and the 'Environmental Protection Law'. It is advised that the data be tailored for localized scenarios, taking into account differences in resource consumption and environmental impact among the various farms and treatment methods highlighted in the study from 2014 to 2015. The appropriateness of the data should be critically evaluated for relevance to current conditions as regulations and technological practices may have evolved since the time of the study.


In this paper, the life cycle of livestock and poultry farming is divided into six stages: feed crop planting, feed processing, livestock and poultry raising, manure treatment, slaughter and transportation. The specific life cycle process of livestock and poultry breeding is shown in Figure 2-1. Due to the lack of some data and the limitations of basic conditions, the production, transportation and use of pesticides, mulch and feed additives have not been analyzed, and the environmental impact caused by other related infrastructure construction, transport production and labor costs is no longer considered.

Process type
LCI modeling approach
Multifunctional modeling
Aggregation type
Data provider
Review status
Tiangong LCI Data Working Group