Severe below-maintenance feed intake increases methane yield from enteric fermentation in cattle

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creativework.keywords - en
Feed
Cattle
Digestion
Fermentation
Malnutrition
Methane
creativework.keywords - fr
Aliments pour animaux
Bovins
Digestion
Fermentation
Malnutrition
Méthane
dc.contributor.author
Goopy, J. P.
Korir, D.
Pelster, D.
Ali, A. I. M.
Wassie, S. E.
Schlecht, E.
Dickhoefer, U.
Merbold, L.
Butterbach-Bahl, K.
dc.date.accepted
2019-12-16
dc.date.accessioned
2025-01-07T15:10:52Z
dc.date.available
2025-01-07T15:10:52Z
dc.date.issued
2020-02-25
dc.date.submitted
2019-02-22
dc.description.abstract - en
The relationship between feed intake at production levels and enteric CH4 production in ruminants consuming forage-based diets is well described and considered to be strongly linear. Unlike temperate grazing systems, the intake of ruminants in rain-fed tropical systems is typically below maintenance requirements for part of the year (dry seasons). The relationship between CH4 production and feed intake in animals fed well below maintenance is unexplored, but changes in key digestive parameters in animals fed at low levels suggest that this relationship may be altered. We conducted a study using Boran yearling steers (n 12; live weight: 162·3 kg) in a 4 × 4 Latin square design to assess the effect of moderate to severe undernutrition on apparent digestibility, rumen turnover and enteric CH4 production of cattle consuming a tropical forage diet. We concluded that while production of CH4 decreased (1133·3-65·0 g CH4/d; P < 0·0001), over the range of feeding from about 1·0 to 0·4 maintenance energy requirement, both CH4 yield (29·0-31·2 g CH4/kg DM intake; P < 0·001) and CH4 conversion factor (Ym 9·1-10·1 MJ CH4/MJ gross energy intake; P < 0·01) increased as intake fell and postulate that this may be attributable to changes in nutrient partitioning. We suggest there is a case for revising emission factors of ruminants where there are seasonal nutritional deficits and both environmental and financial benefits for improved feeding of animals under nutritional stress.
dc.identifier.citation
Goopy, J. P., Korir, D., Pelster, D., Ali, A. I. M., Wassie, S. E., Schlecht, E., Dickhoefer, U., Merbold, L., & Butterbach-Bahl, K. (2020). Severe below-maintenance feed intake increases methane yield from enteric fermentation in cattle. British Journal of Nutrition, 123(11), 1239-1246. https://doi.org/10.1017/S0007114519003350
dc.identifier.doi
https://doi.org/10.1017/S0007114519003350
dc.identifier.issn
0007-1145
dc.identifier.uri
https://open-science.canada.ca/handle/123456789/3242
dc.language.iso
en
dc.publisher - en
Cambridge University Press
dc.rights - en
Creative Commons Attribution 4.0 International (CC BY 4.0)
dc.rights - fr
Creative Commons Attribution 4.0 International (CC BY 4.0)
dc.rights.uri - en
https://creativecommons.org/licenses/by/4.0/
dc.rights.uri - fr
https://creativecommons.org/licenses/by/4.0/deed.fr
dc.subject - en
Animal nutrition
Cattle
dc.subject - fr
Alimentation animale
Bovins
dc.subject.en - en
Animal nutrition
Cattle
dc.subject.fr - fr
Alimentation animale
Bovins
dc.title - en
Severe below-maintenance feed intake increases methane yield from enteric fermentation in cattle
dc.type - en
Article
dc.type - fr
Article
local.article.journalissue
11
local.article.journaltitle - en
British Journal of Nutrition
local.article.journalvolume
123
local.pagination
1239-1246
local.peerreview - en
Yes
local.peerreview - fr
Oui
local.requestdoi
No
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