| Title: |
Contemporary approaches to measuring and estimating methane emission from ruminants |
| Authors: |
Ramin, Mohammad; Bekele, Wondimagegne; Guinguina, Abdulai; Zegeye, Abiy; Simachew, Addis |
| Publication Year: |
2022 |
| Collection: |
Swedish University of Agricultural Sciences / Sveriges Lantbruksuniversitet (SLU): Epsilon Open Archive |
| Subject Terms: |
Environmental Sciences (social aspects to be 507); Climate Research; Animal and Dairy Science |
| Description: |
This review aims to elucidate the contemporary methods of measuring and estimating methane (CH4) emissions from ruminants. Six categories of methods for measuring and estimating CH4 emissions from ruminants are discussed. The widely used methods in most CH4 abatement experiments comprise the gold standard respiration chamber, in vitro incubation, and the sulfur hexafluoride (SF6) techniques. In the spot sampling methods, the paper discusses the sniffer method, the GreenFeed system, the face mask method, and the portable accumulation chamber. The spot sampling relies on the measurement of short-term breath data adequately on spot. The mathematical modeling methods focus on predicting CH4 emissions from ruminants without undertaking extensive and costly experiments. For instance, the Intergovernmental Panel on Climate Change (IPCC) provides default values for regional emission factors and other parameters using three levels of estimation (Tier 1, 2 and 3 levels), with Tier 1 and Tier 3 being the simplest and most complex methods, respectively. The laser technologies include the open-path laser technique and the laser CH4 detector. They use the laser CH4 detector and wireless sensor networks to measure CH4 flux. The micrometeorological methods rely on measurements of meteorological data in line with CH4 concentration. The last category of methods for measuring and estimating CH4 emissions in this paper is the emerging technologies. They include the blood CH4 concentration tracer, infrared thermography, intraruminal telemetry, the eddy covariance (EC) technique, carbon dioxide as a tracer gas, and polytunnel. The emerging technologies are essential for the future development of effective quantification of CH4 emissions from ruminants. In general, adequate knowledge of CH4 emission measurement methods is important for planning, implementing, interpreting, and comparing experimental results. |
| Document Type: |
article in journal/newspaper |
| File Description: |
application/pdf |
| Language: |
English |
| Relation: |
https://pub.epsilon.slu.se/30289/1/bekele-w-et-al-20230216.pdf; Ramin, Mohammad and Bekele, Wondimagegne and Guinguina, Abdulai and Zegeye, Abiy and Simachew, Addis and Ramin, Mohammad (2022). Contemporary approaches to measuring and estimating methane emission from ruminants. Methane. 1 :2 , 82-95 [Article Review/Survey] |
| Availability: |
https://pub.epsilon.slu.se/30289/ |
| Accession Number: |
edsbas.3CD3193C |
| Database: |
BASE |