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Measurement of methane emissions in cattle with infrared gas analyzer and gas chromatography

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Title Measurement of methane emissions in cattle with infrared gas analyzer and gas chromatography
 
Creator Gaviria Uribe, Xiomara
Chirinda, Ngonidzashe
Barahona Rosales, Rolando
Bolívar Vergara, Diana María
Rosenstock, Todd S.
Arango, Jacobo
 
Subject livestock
greenhouse gas emissions
cattle
measurement
ganado
emisiones de gases de efecto invernadero
ganado bovino
 
Description Globally, the livestock sector represents 14.5% of greenhouse gas (GHG) emissions from cattle production (4.6 Gt CO2-eq), mainly through enteric fermentation (2.1 Gt CO2-eq), which corresponds to the largest source (IPCC, 2007; Gerber et al. 2013). Enteric methane (CH4) emissions are highly variable, depending on the quality of feed, but also on climate conditions, dry matter intake and energy use. In order to contribute to the mitigation of climate change there is the current need to standardize accurate, affordable, and logistically simple methods to determine in vivo emissions of enteric CH4 accurately and at the more specific scales as possible. However, for the cattle sector, most of the default values given by the intergovernmental panel on climate change (IPCC) (Tier 1 emission factors) (Gavrilova et al. 2019) use to estimate emissions were developed in laboratories with mostly breeds and feeds in non-tropical countries, which lead to uncertainties in estimations when used in the tropics. Therefore, it remains unclear whether IPCC emission factors are reflective of CH4 emissions from cattle in tropical locations.

The polytunnel method is a promising, simple and accessible approach for quantifying enteric CH4 emissions in which individual or groups of cattle can be confined for selected periods of time during which the amount of CH4 they produce is collected and then measured (Storm et al. 2012; Goopy et al. 2016). Currently, CH4 concentrations in samples collected from polytunnels are collected and transferred to lab prior to being analyzed using gas chromatography (Murray et al. 1999), a resource demanding process. On the other hand, Gasmet DX4040TM (Gasmet) uses Fourier Transform Infrared Spectroscopy (FTIR) to measure up to 25 gases simultaneously, including CH4. The real-time measurements and portability of Gasmet raises the possibility of rapidly and cost effectively quantifying gas concentrations. This technology has been used to quantify enteric CH4 emissions from the feeding pen automatic milking systems (Lassen et al. 2012; Haque & Madsen, 2014). Gasmet has not previously been used for field measurements of methane in tropical countries, where humidity and temperature may affect performance. To the best of our knowledge, this is the first study to directly compare the FITR technology with gas NDIR system with gas chromatograph to measure methane emissions in cattle. We hypothesize that Gasmet (FTIR technology) gives comparable CH4 concentrations to those obtained by gas chromatograph (GC) technology.
 
Date 2020
2021-01-26T11:40:42Z
2021-01-26T11:40:42Z
 
Type Journal Article
 
Identifier Gaviria-Uribe, X.; Chirinda, N.; Barahona-Rosales, R.; Bolívar-Vergara, D.M.; Rosenstock, T.; Arango, J. (2020) Measurement of methane emissions in cattle with infrared gas analyzer and gas chromatography. Revista U.D.C.A Actualidad & Divulgación Científica 23(2):e1365 ISSN: 0123-4226
0123-4226
https://hdl.handle.net/10568/110989
https://doi.org/10.31910/rudca.v23.n2.2020.1365
PII-LAM_LivestockPlus
 
Language en
 
Rights CC-BY-NC-4.0
Open Access
 
Format application/pdf
 
Publisher Universidad de Ciencias Aplicadas Y Ambientales - UDCA
 
Source Revista U.D.C.A Actualidad & Divulgación Científica