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[ Article ] Development of methane emission factors for enteric fermentation in cattle from Benin using IPCC tier 2 methodology

Date de soumission: 04-02-2018
Année de Publication: 2015
Entité/Laboratoire Laboratoire de Pharmacognosie et des Huiles Essentielles (LPHE)
Document type : Article
Discipline(s) : Chimie
Titre Development of methane emission factors for enteric fermentation in cattle from Benin using IPCC tier 2 methodology
Auteurs KOUAZOUNDE BAMIKOLÉ JACQUES [1], GBENOU Djimon Joachim [2], BABATOUNDE Sérafin [3], SRIVASTAVA Nalin [4], EGGLESTON H. Simon [5], ANTWI Christopher [6], BAAH John [6], McALLISTER Tim A. [6],
Journal: Animal
Catégorie Journal: Internationale
Impact factor: 0
Volume Journal: 9
DOI: doi:10.1017/S1751731114002626
Resume The objective of this study was to develop emission factors (EF) for CH4 emissions from enteric fermentation in cattle native to Benin. Information on livestock characteristics and diet practices specific to Benin cattle population were gathered from a variety of sources and used to estimate EF according to Tier 2 methodology of the 2006 IPCC Guidelines for National Greenhouse Gas Inventories. Most cattle from Benin are Bos taurus represented by Borgou, Somba and Lagune breeds. They are mainly multi-purpose, being used for production of meat, milk, hides and draft power and grazed in open pastures and crop lands comprising tropical forages and crops. Estimated enteric CH4 EF varied among cattle breeds and subcategory owing to differences in proportions of gross energy intake expended to meet maintenance, production and activity. EF ranged from 15.0 to 43.6, 16.9 to 46.3 and 24.7 to 64.9 kg CH4/head per year for subcategories of Lagune, Somba and Borgou cattle, respectively. Average EF for cattle breeds were 24.8, 29.5 and 40.2 kg CH4/head per year for Lagune, Somba and Borgou cattle, respectively. The national EF for cattle from Benin was 39.5 kg CH4/head per year. This estimated EF was 27.4% higher than the default EF suggested by IPCC for African cattle with the exception of dairy cattle. The outcome of the study underscores the importance of obtaining country-specific EF to estimate global enteric CH4 emissions.
Mots clés methane, enteric fermentation, emission factor, cattle, Benin, Africa
Pages 526 - 533
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