Comparison of models for estimating methane emission factor for enteric fermentation of growing-finishing Hanwoo steers

Abstract The methodology provided by the Intergovernmental Panel on Climate Change (IPCC) guidelines is widely used for estimating enteric methane ($ CH_{4} $) production by cattle. No attempt other than the default values in the IPCC Tier 1 has been made for estimating $ CH_{4} $ emission from Hanwoo, a dominant beef species in Korea raised in a unique feeding system. The objective of this study was to compare models for estimating the $ CH_{4} $ emission factor (MEF; kg $ CH_{4} $/head/year) for enteric fermentation in Hanwoo steers. The MEF was estimated based on Korea- and Hanwoo-specific data obtained from the literature using several models. The models include the IPCC Tier 1 (T1), the IPCC Tier 2 method (T2), the IPCC Tier 2 methodology with actual dry matter intake (T2DMI), and the Japanese Tier 3 method (JT3). The JT3 was included due to the similarity in the beef cattle production system between the two countries. Estimated MEF using T2 were 43.4, 33.9, and 36.2 kg $ CH_{4} $/head/year for the growing, finishing, and overall period, respectively. The overall MEF estimated using T2 was 23 % lower than the estimate by T1 (47.0 kg $ CH_{4} $/head/year). There were significant differences in the estimated MEF for enteric fermentation of Hanwoo steers among the methods (P < 0.05). The overall MEF estimated by JT3 was 69.1 kg $ CH_{4} $/head/year, which was significantly higher than the estimates by T2 (36.2 kg) and T2DMI (33.5 kg). The JT3 estimated the highest values in all periods possibly due to overestimation of the conversion ratio of feed energy to $ CH_{4} $. No significant difference was found in the overall MEF of Hanwoo steers between T2 and T2DMI. However, T2DMI estimated 8 % higher and 14 % lower MEF than T2 for the growing and finishing period, respectively, mainly because the T2 significantly over-predicts the gross energy intake of Hanwoo steers at the high level of intake. The IPCC default methods have limitations in their use for a feeding systems in non-western countries, and thus development of a country-specific methodology and parameter estimates for enteric $ CH_{4} $ production is required for Hanwoo and other cattle production systems. Ausführliche Beschreibung

Gespeichert in:

Autor*in:	Jo, Namchul [verfasserIn] Kim, Jongnam [verfasserIn] Seo, Seongwon [verfasserIn]

Format:	E-Artikel
Sprache:	Englisch

Erschienen:	2016

Schlagwörter:	Methane emission factor Enteric fermentation IPCC guidelines Hanwoo (Korean native cattle)

Übergeordnetes Werk:	Enthalten in: SpringerPlus - London : Biomed Central, 2012, 5(2016), 1 vom: 29. Juli
Übergeordnetes Werk:	volume:5 ; year:2016 ; number:1 ; day:29 ; month:07

Links:	Volltext

DOI / URN:	10.1186/s40064-016-2889-7

Katalog-ID:	SPR032788363

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allfields	10.1186/s40064-016-2889-7 doi (DE-627)SPR032788363 (SPR)s40064-016-2889-7-e DE-627 ger DE-627 rakwb eng 600 ASE Jo, Namchul verfasserin aut Comparison of models for estimating methane emission factor for enteric fermentation of growing-finishing Hanwoo steers 2016 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Abstract The methodology provided by the Intergovernmental Panel on Climate Change (IPCC) guidelines is widely used for estimating enteric methane ($ CH_{4} $) production by cattle. No attempt other than the default values in the IPCC Tier 1 has been made for estimating $ CH_{4} $ emission from Hanwoo, a dominant beef species in Korea raised in a unique feeding system. The objective of this study was to compare models for estimating the $ CH_{4} $ emission factor (MEF; kg $ CH_{4} $/head/year) for enteric fermentation in Hanwoo steers. The MEF was estimated based on Korea- and Hanwoo-specific data obtained from the literature using several models. The models include the IPCC Tier 1 (T1), the IPCC Tier 2 method (T2), the IPCC Tier 2 methodology with actual dry matter intake (T2DMI), and the Japanese Tier 3 method (JT3). The JT3 was included due to the similarity in the beef cattle production system between the two countries. Estimated MEF using T2 were 43.4, 33.9, and 36.2 kg $ CH_{4} $/head/year for the growing, finishing, and overall period, respectively. The overall MEF estimated using T2 was 23 % lower than the estimate by T1 (47.0 kg $ CH_{4} $/head/year). There were significant differences in the estimated MEF for enteric fermentation of Hanwoo steers among the methods (P < 0.05). The overall MEF estimated by JT3 was 69.1 kg $ CH_{4} $/head/year, which was significantly higher than the estimates by T2 (36.2 kg) and T2DMI (33.5 kg). The JT3 estimated the highest values in all periods possibly due to overestimation of the conversion ratio of feed energy to $ CH_{4} $. No significant difference was found in the overall MEF of Hanwoo steers between T2 and T2DMI. However, T2DMI estimated 8 % higher and 14 % lower MEF than T2 for the growing and finishing period, respectively, mainly because the T2 significantly over-predicts the gross energy intake of Hanwoo steers at the high level of intake. The IPCC default methods have limitations in their use for a feeding systems in non-western countries, and thus development of a country-specific methodology and parameter estimates for enteric $ CH_{4} $ production is required for Hanwoo and other cattle production systems. Methane emission factor (dpeaa)DE-He213 Enteric fermentation (dpeaa)DE-He213 IPCC guidelines (dpeaa)DE-He213 Hanwoo (Korean native cattle) (dpeaa)DE-He213 Kim, Jongnam verfasserin aut Seo, Seongwon verfasserin aut Enthalten in SpringerPlus London : Biomed Central, 2012 5(2016), 1 vom: 29. Juli (DE-627)718615298 (DE-600)2661116-8 2193-1801 nnns volume:5 year:2016 number:1 day:29 month:07 https://dx.doi.org/10.1186/s40064-016-2889-7 kostenfrei Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_171 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_2005 GBV_ILN_2009 GBV_ILN_2014 GBV_ILN_2055 GBV_ILN_2111 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 5 2016 1 29 07
spelling	10.1186/s40064-016-2889-7 doi (DE-627)SPR032788363 (SPR)s40064-016-2889-7-e DE-627 ger DE-627 rakwb eng 600 ASE Jo, Namchul verfasserin aut Comparison of models for estimating methane emission factor for enteric fermentation of growing-finishing Hanwoo steers 2016 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Abstract The methodology provided by the Intergovernmental Panel on Climate Change (IPCC) guidelines is widely used for estimating enteric methane ($ CH_{4} $) production by cattle. No attempt other than the default values in the IPCC Tier 1 has been made for estimating $ CH_{4} $ emission from Hanwoo, a dominant beef species in Korea raised in a unique feeding system. The objective of this study was to compare models for estimating the $ CH_{4} $ emission factor (MEF; kg $ CH_{4} $/head/year) for enteric fermentation in Hanwoo steers. The MEF was estimated based on Korea- and Hanwoo-specific data obtained from the literature using several models. The models include the IPCC Tier 1 (T1), the IPCC Tier 2 method (T2), the IPCC Tier 2 methodology with actual dry matter intake (T2DMI), and the Japanese Tier 3 method (JT3). The JT3 was included due to the similarity in the beef cattle production system between the two countries. Estimated MEF using T2 were 43.4, 33.9, and 36.2 kg $ CH_{4} $/head/year for the growing, finishing, and overall period, respectively. The overall MEF estimated using T2 was 23 % lower than the estimate by T1 (47.0 kg $ CH_{4} $/head/year). There were significant differences in the estimated MEF for enteric fermentation of Hanwoo steers among the methods (P < 0.05). The overall MEF estimated by JT3 was 69.1 kg $ CH_{4} $/head/year, which was significantly higher than the estimates by T2 (36.2 kg) and T2DMI (33.5 kg). The JT3 estimated the highest values in all periods possibly due to overestimation of the conversion ratio of feed energy to $ CH_{4} $. No significant difference was found in the overall MEF of Hanwoo steers between T2 and T2DMI. However, T2DMI estimated 8 % higher and 14 % lower MEF than T2 for the growing and finishing period, respectively, mainly because the T2 significantly over-predicts the gross energy intake of Hanwoo steers at the high level of intake. The IPCC default methods have limitations in their use for a feeding systems in non-western countries, and thus development of a country-specific methodology and parameter estimates for enteric $ CH_{4} $ production is required for Hanwoo and other cattle production systems. Methane emission factor (dpeaa)DE-He213 Enteric fermentation (dpeaa)DE-He213 IPCC guidelines (dpeaa)DE-He213 Hanwoo (Korean native cattle) (dpeaa)DE-He213 Kim, Jongnam verfasserin aut Seo, Seongwon verfasserin aut Enthalten in SpringerPlus London : Biomed Central, 2012 5(2016), 1 vom: 29. Juli (DE-627)718615298 (DE-600)2661116-8 2193-1801 nnns volume:5 year:2016 number:1 day:29 month:07 https://dx.doi.org/10.1186/s40064-016-2889-7 kostenfrei Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_171 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_2005 GBV_ILN_2009 GBV_ILN_2014 GBV_ILN_2055 GBV_ILN_2111 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 5 2016 1 29 07
allfields_unstemmed	10.1186/s40064-016-2889-7 doi (DE-627)SPR032788363 (SPR)s40064-016-2889-7-e DE-627 ger DE-627 rakwb eng 600 ASE Jo, Namchul verfasserin aut Comparison of models for estimating methane emission factor for enteric fermentation of growing-finishing Hanwoo steers 2016 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Abstract The methodology provided by the Intergovernmental Panel on Climate Change (IPCC) guidelines is widely used for estimating enteric methane ($ CH_{4} $) production by cattle. No attempt other than the default values in the IPCC Tier 1 has been made for estimating $ CH_{4} $ emission from Hanwoo, a dominant beef species in Korea raised in a unique feeding system. The objective of this study was to compare models for estimating the $ CH_{4} $ emission factor (MEF; kg $ CH_{4} $/head/year) for enteric fermentation in Hanwoo steers. The MEF was estimated based on Korea- and Hanwoo-specific data obtained from the literature using several models. The models include the IPCC Tier 1 (T1), the IPCC Tier 2 method (T2), the IPCC Tier 2 methodology with actual dry matter intake (T2DMI), and the Japanese Tier 3 method (JT3). The JT3 was included due to the similarity in the beef cattle production system between the two countries. Estimated MEF using T2 were 43.4, 33.9, and 36.2 kg $ CH_{4} $/head/year for the growing, finishing, and overall period, respectively. The overall MEF estimated using T2 was 23 % lower than the estimate by T1 (47.0 kg $ CH_{4} $/head/year). There were significant differences in the estimated MEF for enteric fermentation of Hanwoo steers among the methods (P < 0.05). The overall MEF estimated by JT3 was 69.1 kg $ CH_{4} $/head/year, which was significantly higher than the estimates by T2 (36.2 kg) and T2DMI (33.5 kg). The JT3 estimated the highest values in all periods possibly due to overestimation of the conversion ratio of feed energy to $ CH_{4} $. No significant difference was found in the overall MEF of Hanwoo steers between T2 and T2DMI. However, T2DMI estimated 8 % higher and 14 % lower MEF than T2 for the growing and finishing period, respectively, mainly because the T2 significantly over-predicts the gross energy intake of Hanwoo steers at the high level of intake. The IPCC default methods have limitations in their use for a feeding systems in non-western countries, and thus development of a country-specific methodology and parameter estimates for enteric $ CH_{4} $ production is required for Hanwoo and other cattle production systems. Methane emission factor (dpeaa)DE-He213 Enteric fermentation (dpeaa)DE-He213 IPCC guidelines (dpeaa)DE-He213 Hanwoo (Korean native cattle) (dpeaa)DE-He213 Kim, Jongnam verfasserin aut Seo, Seongwon verfasserin aut Enthalten in SpringerPlus London : Biomed Central, 2012 5(2016), 1 vom: 29. Juli (DE-627)718615298 (DE-600)2661116-8 2193-1801 nnns volume:5 year:2016 number:1 day:29 month:07 https://dx.doi.org/10.1186/s40064-016-2889-7 kostenfrei Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_171 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_2005 GBV_ILN_2009 GBV_ILN_2014 GBV_ILN_2055 GBV_ILN_2111 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 5 2016 1 29 07
allfieldsGer	10.1186/s40064-016-2889-7 doi (DE-627)SPR032788363 (SPR)s40064-016-2889-7-e DE-627 ger DE-627 rakwb eng 600 ASE Jo, Namchul verfasserin aut Comparison of models for estimating methane emission factor for enteric fermentation of growing-finishing Hanwoo steers 2016 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Abstract The methodology provided by the Intergovernmental Panel on Climate Change (IPCC) guidelines is widely used for estimating enteric methane ($ CH_{4} $) production by cattle. No attempt other than the default values in the IPCC Tier 1 has been made for estimating $ CH_{4} $ emission from Hanwoo, a dominant beef species in Korea raised in a unique feeding system. The objective of this study was to compare models for estimating the $ CH_{4} $ emission factor (MEF; kg $ CH_{4} $/head/year) for enteric fermentation in Hanwoo steers. The MEF was estimated based on Korea- and Hanwoo-specific data obtained from the literature using several models. The models include the IPCC Tier 1 (T1), the IPCC Tier 2 method (T2), the IPCC Tier 2 methodology with actual dry matter intake (T2DMI), and the Japanese Tier 3 method (JT3). The JT3 was included due to the similarity in the beef cattle production system between the two countries. Estimated MEF using T2 were 43.4, 33.9, and 36.2 kg $ CH_{4} $/head/year for the growing, finishing, and overall period, respectively. The overall MEF estimated using T2 was 23 % lower than the estimate by T1 (47.0 kg $ CH_{4} $/head/year). There were significant differences in the estimated MEF for enteric fermentation of Hanwoo steers among the methods (P < 0.05). The overall MEF estimated by JT3 was 69.1 kg $ CH_{4} $/head/year, which was significantly higher than the estimates by T2 (36.2 kg) and T2DMI (33.5 kg). The JT3 estimated the highest values in all periods possibly due to overestimation of the conversion ratio of feed energy to $ CH_{4} $. No significant difference was found in the overall MEF of Hanwoo steers between T2 and T2DMI. However, T2DMI estimated 8 % higher and 14 % lower MEF than T2 for the growing and finishing period, respectively, mainly because the T2 significantly over-predicts the gross energy intake of Hanwoo steers at the high level of intake. The IPCC default methods have limitations in their use for a feeding systems in non-western countries, and thus development of a country-specific methodology and parameter estimates for enteric $ CH_{4} $ production is required for Hanwoo and other cattle production systems. Methane emission factor (dpeaa)DE-He213 Enteric fermentation (dpeaa)DE-He213 IPCC guidelines (dpeaa)DE-He213 Hanwoo (Korean native cattle) (dpeaa)DE-He213 Kim, Jongnam verfasserin aut Seo, Seongwon verfasserin aut Enthalten in SpringerPlus London : Biomed Central, 2012 5(2016), 1 vom: 29. Juli (DE-627)718615298 (DE-600)2661116-8 2193-1801 nnns volume:5 year:2016 number:1 day:29 month:07 https://dx.doi.org/10.1186/s40064-016-2889-7 kostenfrei Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_171 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_2005 GBV_ILN_2009 GBV_ILN_2014 GBV_ILN_2055 GBV_ILN_2111 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 5 2016 1 29 07
allfieldsSound	10.1186/s40064-016-2889-7 doi (DE-627)SPR032788363 (SPR)s40064-016-2889-7-e DE-627 ger DE-627 rakwb eng 600 ASE Jo, Namchul verfasserin aut Comparison of models for estimating methane emission factor for enteric fermentation of growing-finishing Hanwoo steers 2016 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Abstract The methodology provided by the Intergovernmental Panel on Climate Change (IPCC) guidelines is widely used for estimating enteric methane ($ CH_{4} $) production by cattle. No attempt other than the default values in the IPCC Tier 1 has been made for estimating $ CH_{4} $ emission from Hanwoo, a dominant beef species in Korea raised in a unique feeding system. The objective of this study was to compare models for estimating the $ CH_{4} $ emission factor (MEF; kg $ CH_{4} $/head/year) for enteric fermentation in Hanwoo steers. The MEF was estimated based on Korea- and Hanwoo-specific data obtained from the literature using several models. The models include the IPCC Tier 1 (T1), the IPCC Tier 2 method (T2), the IPCC Tier 2 methodology with actual dry matter intake (T2DMI), and the Japanese Tier 3 method (JT3). The JT3 was included due to the similarity in the beef cattle production system between the two countries. Estimated MEF using T2 were 43.4, 33.9, and 36.2 kg $ CH_{4} $/head/year for the growing, finishing, and overall period, respectively. The overall MEF estimated using T2 was 23 % lower than the estimate by T1 (47.0 kg $ CH_{4} $/head/year). There were significant differences in the estimated MEF for enteric fermentation of Hanwoo steers among the methods (P < 0.05). The overall MEF estimated by JT3 was 69.1 kg $ CH_{4} $/head/year, which was significantly higher than the estimates by T2 (36.2 kg) and T2DMI (33.5 kg). The JT3 estimated the highest values in all periods possibly due to overestimation of the conversion ratio of feed energy to $ CH_{4} $. No significant difference was found in the overall MEF of Hanwoo steers between T2 and T2DMI. However, T2DMI estimated 8 % higher and 14 % lower MEF than T2 for the growing and finishing period, respectively, mainly because the T2 significantly over-predicts the gross energy intake of Hanwoo steers at the high level of intake. The IPCC default methods have limitations in their use for a feeding systems in non-western countries, and thus development of a country-specific methodology and parameter estimates for enteric $ CH_{4} $ production is required for Hanwoo and other cattle production systems. Methane emission factor (dpeaa)DE-He213 Enteric fermentation (dpeaa)DE-He213 IPCC guidelines (dpeaa)DE-He213 Hanwoo (Korean native cattle) (dpeaa)DE-He213 Kim, Jongnam verfasserin aut Seo, Seongwon verfasserin aut Enthalten in SpringerPlus London : Biomed Central, 2012 5(2016), 1 vom: 29. Juli (DE-627)718615298 (DE-600)2661116-8 2193-1801 nnns volume:5 year:2016 number:1 day:29 month:07 https://dx.doi.org/10.1186/s40064-016-2889-7 kostenfrei Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_171 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_2005 GBV_ILN_2009 GBV_ILN_2014 GBV_ILN_2055 GBV_ILN_2111 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 5 2016 1 29 07
language	English
source	Enthalten in SpringerPlus 5(2016), 1 vom: 29. Juli volume:5 year:2016 number:1 day:29 month:07
sourceStr	Enthalten in SpringerPlus 5(2016), 1 vom: 29. Juli volume:5 year:2016 number:1 day:29 month:07
format_phy_str_mv	Article
institution	findex.gbv.de
topic_facet	Methane emission factor Enteric fermentation IPCC guidelines Hanwoo (Korean native cattle)
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author	Jo, Namchul
spellingShingle	Jo, Namchul ddc 600 misc Methane emission factor misc Enteric fermentation misc IPCC guidelines misc Hanwoo (Korean native cattle) Comparison of models for estimating methane emission factor for enteric fermentation of growing-finishing Hanwoo steers
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topic_title	600 ASE Comparison of models for estimating methane emission factor for enteric fermentation of growing-finishing Hanwoo steers Methane emission factor (dpeaa)DE-He213 Enteric fermentation (dpeaa)DE-He213 IPCC guidelines (dpeaa)DE-He213 Hanwoo (Korean native cattle) (dpeaa)DE-He213
topic	ddc 600 misc Methane emission factor misc Enteric fermentation misc IPCC guidelines misc Hanwoo (Korean native cattle)
topic_unstemmed	ddc 600 misc Methane emission factor misc Enteric fermentation misc IPCC guidelines misc Hanwoo (Korean native cattle)
topic_browse	ddc 600 misc Methane emission factor misc Enteric fermentation misc IPCC guidelines misc Hanwoo (Korean native cattle)
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title	Comparison of models for estimating methane emission factor for enteric fermentation of growing-finishing Hanwoo steers
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title_full	Comparison of models for estimating methane emission factor for enteric fermentation of growing-finishing Hanwoo steers
author_sort	Jo, Namchul
journal	SpringerPlus
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lang_code	eng
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author_browse	Jo, Namchul Kim, Jongnam Seo, Seongwon
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author-letter	Jo, Namchul
doi_str_mv	10.1186/s40064-016-2889-7
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title_sort	comparison of models for estimating methane emission factor for enteric fermentation of growing-finishing hanwoo steers
title_auth	Comparison of models for estimating methane emission factor for enteric fermentation of growing-finishing Hanwoo steers
abstract	Abstract The methodology provided by the Intergovernmental Panel on Climate Change (IPCC) guidelines is widely used for estimating enteric methane ($ CH_{4} $) production by cattle. No attempt other than the default values in the IPCC Tier 1 has been made for estimating $ CH_{4} $ emission from Hanwoo, a dominant beef species in Korea raised in a unique feeding system. The objective of this study was to compare models for estimating the $ CH_{4} $ emission factor (MEF; kg $ CH_{4} $/head/year) for enteric fermentation in Hanwoo steers. The MEF was estimated based on Korea- and Hanwoo-specific data obtained from the literature using several models. The models include the IPCC Tier 1 (T1), the IPCC Tier 2 method (T2), the IPCC Tier 2 methodology with actual dry matter intake (T2DMI), and the Japanese Tier 3 method (JT3). The JT3 was included due to the similarity in the beef cattle production system between the two countries. Estimated MEF using T2 were 43.4, 33.9, and 36.2 kg $ CH_{4} $/head/year for the growing, finishing, and overall period, respectively. The overall MEF estimated using T2 was 23 % lower than the estimate by T1 (47.0 kg $ CH_{4} $/head/year). There were significant differences in the estimated MEF for enteric fermentation of Hanwoo steers among the methods (P < 0.05). The overall MEF estimated by JT3 was 69.1 kg $ CH_{4} $/head/year, which was significantly higher than the estimates by T2 (36.2 kg) and T2DMI (33.5 kg). The JT3 estimated the highest values in all periods possibly due to overestimation of the conversion ratio of feed energy to $ CH_{4} $. No significant difference was found in the overall MEF of Hanwoo steers between T2 and T2DMI. However, T2DMI estimated 8 % higher and 14 % lower MEF than T2 for the growing and finishing period, respectively, mainly because the T2 significantly over-predicts the gross energy intake of Hanwoo steers at the high level of intake. The IPCC default methods have limitations in their use for a feeding systems in non-western countries, and thus development of a country-specific methodology and parameter estimates for enteric $ CH_{4} $ production is required for Hanwoo and other cattle production systems.
abstractGer	Abstract The methodology provided by the Intergovernmental Panel on Climate Change (IPCC) guidelines is widely used for estimating enteric methane ($ CH_{4} $) production by cattle. No attempt other than the default values in the IPCC Tier 1 has been made for estimating $ CH_{4} $ emission from Hanwoo, a dominant beef species in Korea raised in a unique feeding system. The objective of this study was to compare models for estimating the $ CH_{4} $ emission factor (MEF; kg $ CH_{4} $/head/year) for enteric fermentation in Hanwoo steers. The MEF was estimated based on Korea- and Hanwoo-specific data obtained from the literature using several models. The models include the IPCC Tier 1 (T1), the IPCC Tier 2 method (T2), the IPCC Tier 2 methodology with actual dry matter intake (T2DMI), and the Japanese Tier 3 method (JT3). The JT3 was included due to the similarity in the beef cattle production system between the two countries. Estimated MEF using T2 were 43.4, 33.9, and 36.2 kg $ CH_{4} $/head/year for the growing, finishing, and overall period, respectively. The overall MEF estimated using T2 was 23 % lower than the estimate by T1 (47.0 kg $ CH_{4} $/head/year). There were significant differences in the estimated MEF for enteric fermentation of Hanwoo steers among the methods (P < 0.05). The overall MEF estimated by JT3 was 69.1 kg $ CH_{4} $/head/year, which was significantly higher than the estimates by T2 (36.2 kg) and T2DMI (33.5 kg). The JT3 estimated the highest values in all periods possibly due to overestimation of the conversion ratio of feed energy to $ CH_{4} $. No significant difference was found in the overall MEF of Hanwoo steers between T2 and T2DMI. However, T2DMI estimated 8 % higher and 14 % lower MEF than T2 for the growing and finishing period, respectively, mainly because the T2 significantly over-predicts the gross energy intake of Hanwoo steers at the high level of intake. The IPCC default methods have limitations in their use for a feeding systems in non-western countries, and thus development of a country-specific methodology and parameter estimates for enteric $ CH_{4} $ production is required for Hanwoo and other cattle production systems.
abstract_unstemmed	Abstract The methodology provided by the Intergovernmental Panel on Climate Change (IPCC) guidelines is widely used for estimating enteric methane ($ CH_{4} $) production by cattle. No attempt other than the default values in the IPCC Tier 1 has been made for estimating $ CH_{4} $ emission from Hanwoo, a dominant beef species in Korea raised in a unique feeding system. The objective of this study was to compare models for estimating the $ CH_{4} $ emission factor (MEF; kg $ CH_{4} $/head/year) for enteric fermentation in Hanwoo steers. The MEF was estimated based on Korea- and Hanwoo-specific data obtained from the literature using several models. The models include the IPCC Tier 1 (T1), the IPCC Tier 2 method (T2), the IPCC Tier 2 methodology with actual dry matter intake (T2DMI), and the Japanese Tier 3 method (JT3). The JT3 was included due to the similarity in the beef cattle production system between the two countries. Estimated MEF using T2 were 43.4, 33.9, and 36.2 kg $ CH_{4} $/head/year for the growing, finishing, and overall period, respectively. The overall MEF estimated using T2 was 23 % lower than the estimate by T1 (47.0 kg $ CH_{4} $/head/year). There were significant differences in the estimated MEF for enteric fermentation of Hanwoo steers among the methods (P < 0.05). The overall MEF estimated by JT3 was 69.1 kg $ CH_{4} $/head/year, which was significantly higher than the estimates by T2 (36.2 kg) and T2DMI (33.5 kg). The JT3 estimated the highest values in all periods possibly due to overestimation of the conversion ratio of feed energy to $ CH_{4} $. No significant difference was found in the overall MEF of Hanwoo steers between T2 and T2DMI. However, T2DMI estimated 8 % higher and 14 % lower MEF than T2 for the growing and finishing period, respectively, mainly because the T2 significantly over-predicts the gross energy intake of Hanwoo steers at the high level of intake. The IPCC default methods have limitations in their use for a feeding systems in non-western countries, and thus development of a country-specific methodology and parameter estimates for enteric $ CH_{4} $ production is required for Hanwoo and other cattle production systems.
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title_short	Comparison of models for estimating methane emission factor for enteric fermentation of growing-finishing Hanwoo steers
url	https://dx.doi.org/10.1186/s40064-016-2889-7
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author2	Kim, Jongnam Seo, Seongwon
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