Life cycle assessment of Japanese pig farming using low-protein diet supplemented with amino acids(Mitigation of methane and nitrous oxide emissions from livestock waste management)

スポンサーリンク

概要

• 論文の詳細を見る

• Livestock production is indicated to be one of the major emitters of greenhouse gases (GHG), particularly methane (CH_4) and nitrous oxide (N_2O), around the globe, and the reduction of these emissions is an important goal. GHG emissions as well as other environmental impacts of two pig (Sus scrofa domesticus) farming systems, one using conventional diets (CNV) and the other using low-protein diets supplemented with crystalline amino acids (LOW), were therefore evaluated by comparative life cycle assessment (LCA) focusing on manure management and by cradle-to-farm gate LCA. The functional unit was defined as one marketed pig. For the comparative LCA of manure management, the CH_4 and N_2O emissions from manure management of CNV were set as a baseline, and the system boundary of LOW included the CH_4 and N_2O emissions from manure management, and changes in the GHG emissions from feed production including amino acid manufacturing, feed transport, and the materials and energy consumed in manure management. For the cradle-to-farm gate LCA of pig farming, the evaluated system included the processes of feed production including amino acid manufacturing for LOW, feed transport, animal housing including the biological activity of the animal, and manure management. The results of the comparative LCA showed that the GHG emissions from manure management of LOW were 20% less than those of CNV, and the GHG reduction rate of LOW compared to CNV was even greater in the case of a stricter target of effluent nitrogen content. The results of cradle-to-farm gate LCA showed that LOW had lower GHG emissions, acidification potential, eutrophication potential and overall environmental impact, and slightly larger energy consumption, than CNV. The sensitivity analysis showed that LOW still had less GHG emissions than CNV, even in the least preferable case assuming a 40% lower reduction rate of nitrogen excretion.

• 一般社団法人日本土壌肥料学会の論文

著者

• Tanaka Yasuo

  Institute For Nuclear Study University Of Tokyo

• MATSUI Daisuke

  Sumitomo Chemical Co., Ltd

• OSADA Takashi

  Institute of Livestock and Grassland Science, National Agriculture and Food Research Organization (NARO)

• TAKAGI Tomo

  Ajinomoto Co., Inc.

• OGINO Akifumi

  Institute of Livestock and Grassland Science, National Agriculture and Food Research Organization (NARO)

• TAKADA Ryozo

  Faculty of Agriculture, Niigata University

• TSUJIMOTO Susumu

  Ajinomoto Co., Inc.

• TONOUE Tsuyoshi

  Sumitomo Chemical Co., Ltd

• KATSUMATA Masaya

  Institute of Livestock and Grassland Science, National Agriculture and Food Research Organization (NARO)

• YAMASHITA Takahiro

  Institute of Livestock and Grassland Science, National Agriculture and Food Research Organization (NARO)

• TANAKA Yasuo

  Institute of Livestock and Grassland Science, National Agriculture and Food Research Organization (NARO)

関連論文

• ASCA Observations of the Spectrum of the X-Ray Background
• ASCA Observation of the Supernova Remnant W49B
• New Transient X-Ray Source in the Scutum Region Discovered with ASCA
• A Study on High-Energy Nuclear-Active Particles in Extensive Air Showers
• Progress of X-Ray Astronomy
• Life cycle assessment of Japanese pig farming using low-protein diet supplemented with amino acids(Mitigation of methane and nitrous oxide emissions from livestock waste management)

スポンサーリンク