Severe below-maintenance feed intake increases methane yield from enteric fermentation in cattle
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...
| Autores principales: | , , , , , , , , |
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| Formato: | Journal Article |
| Lenguaje: | Inglés |
| Publicado: |
Cambridge University Press
2020
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| Materias: | |
| Acceso en línea: | https://hdl.handle.net/10568/108148 |
| _version_ | 1855529035698798592 |
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| author | Goopy, John P. Korir, Daniel Pelster, David E. Ali, A.I.M. Wassie, Shimels Eshete Schlecht, Eva Dickhoefer, U. Merbold, Lutz Butterbach-Bahl, Klaus |
| author_browse | Ali, A.I.M. Butterbach-Bahl, Klaus Dickhoefer, U. Goopy, John P. Korir, Daniel Merbold, Lutz Pelster, David E. Schlecht, Eva Wassie, Shimels Eshete |
| author_facet | Goopy, John P. Korir, Daniel Pelster, David E. Ali, A.I.M. Wassie, Shimels Eshete Schlecht, Eva Dickhoefer, U. Merbold, Lutz Butterbach-Bahl, Klaus |
| author_sort | Goopy, John P. |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | 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. |
| format | Journal Article |
| id | CGSpace108148 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 2020 |
| publishDateRange | 2020 |
| publishDateSort | 2020 |
| publisher | Cambridge University Press |
| publisherStr | Cambridge University Press |
| record_format | dspace |
| spelling | CGSpace1081482025-09-29T06:20:46Z Severe below-maintenance feed intake increases methane yield from enteric fermentation in cattle Goopy, John P. Korir, Daniel Pelster, David E. Ali, A.I.M. Wassie, Shimels Eshete Schlecht, Eva Dickhoefer, U. Merbold, Lutz Butterbach-Bahl, Klaus animal feeding feed resources feed intake cattle livestock forage 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. 2020-06-14 2020-05-05T13:52:41Z 2020-05-05T13:52:41Z Journal Article https://hdl.handle.net/10568/108148 en Open Access Cambridge University Press Goopy, J.P., Korir, D., Pelster, D., Ali, A.I.M., Wassie, S.E., Schlecht, E., Dickhoefer, U., Merbold, L. and 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. |
| spellingShingle | animal feeding feed resources feed intake cattle livestock forage Goopy, John P. Korir, Daniel Pelster, David E. Ali, A.I.M. Wassie, Shimels Eshete Schlecht, Eva Dickhoefer, U. Merbold, Lutz Butterbach-Bahl, Klaus Severe below-maintenance feed intake increases methane yield from enteric fermentation in cattle |
| title | Severe below-maintenance feed intake increases methane yield from enteric fermentation in cattle |
| title_full | Severe below-maintenance feed intake increases methane yield from enteric fermentation in cattle |
| title_fullStr | Severe below-maintenance feed intake increases methane yield from enteric fermentation in cattle |
| title_full_unstemmed | Severe below-maintenance feed intake increases methane yield from enteric fermentation in cattle |
| title_short | Severe below-maintenance feed intake increases methane yield from enteric fermentation in cattle |
| title_sort | severe below maintenance feed intake increases methane yield from enteric fermentation in cattle |
| topic | animal feeding feed resources feed intake cattle livestock forage |
| url | https://hdl.handle.net/10568/108148 |
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