In vitro assessment of enteric methane emission potential of whole-plant barley, oat, triticale and wheat
In vitro assessment of enteric methane emission potential of whole-plant barley, oat, triticale and wheat
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- creativework.keywords - en
- barley
- oats
- wheat
- triticale
- nutrient degradability
- methane emission
- creativework.keywords - fr
- orge
- avoine
- blé
- dégradabilité des nutriments
- émission de méthane
- triticale
- dc.contributor.author
- Aboagye, Isaac A.
- Rosser, Christine L.
- Baron, Vern S.
- Beauchemin, Karen A.
- dc.date.accepted
- 2021-02-07
- dc.date.accessioned
- 2023-06-22T22:10:44Z
- dc.date.available
- 2023-06-22T22:10:44Z
- dc.date.issued
- 2021-02-09
- dc.date.submitted
- 2021-01-12
- dc.description - en
- There is an increasing interest in finding effective but economical strategies for mitigating enteric methane (CH4) emissions from ruminants. Small-grain cereal forages including barley, oat, triticale, and wheat, unlike maize, are widely grown in temperate locations and may be economical to use for ruminant production. However, the starch and fiber composition and concentrations of whole-plant cereal forages affect rumen degradability, and hence may cause differences in the CH4 production potential among these forages. Therefore, the objective of this study was to determine the enteric CH4 emission potential of various whole-plant cereals and evaluate whether the variability in emissions could be explained by variations in nutrient profiles, degradability, and rumen fermentation characteristics. The results indicate that feeding whole-plant oat forage to ruminants may decrease CH4 emissions but adversely affect animal performance due to lower degradability, whereas barley forage may ameliorate emissions without negative effects on animal performance.
- dc.description.abstract - en
- The study determined in vitro enteric methane (CH4) emission potential of whole-plant cereal (WPC) forages in relationship to nutrient composition, degradability, and rumen fermentation. Two varieties of each WPC (barley, oat, triticale, and wheat) were harvested from two field replications in each of two locations in central Alberta, Canada, and an in vitro batch culture technique was used to characterize gas production (GP), fermentation, and degradability. Starch concentration (g/kg dry matter (DM)) was least (p < 0.001) for oat (147), greatest for wheat (274) and barley (229), and intermediate for triticale (194). The aNDF concentration was greater for oat versus the other cereals (531 vs. 421 g/kg DM, p < 0.01). The 48 h DM and aNDF degradabilities (DMD and aNDFD) differed (p < 0.001) among the WPCs. The DMD was greatest for barley, intermediate for wheat and triticale, and least for oat (719, 677, 663, and 566 g/kg DM, respectively). Cumulative CH4 production (MP; mL) from 12 h to 48 h of incubation was less (p < 0.001) for oat than the other cereals, reflecting its lower DMD. However, CH4 yield (MY; mg of CH4/g DM degraded) of barley and oat grown at one location was less than that of wheat and triticale (28 vs. 31 mg CH4/g DM degraded). Chemical composition failed to explain variation in MY (p = 0.35), but it explained 45% of the variation in MP (p = 0.02). Variation in the CH4 emission potential of WPC was attributed to differences in DMD, aNDFD, and fermentation end-products (R2 ≥ 0.88; p < 001). The results indicate that feeding whole-plant oat forage to ruminants may decrease CH4 emissions, but animal performance may also be negatively affected due to lower degradability, whereas barley forage may ameliorate emissions without negative effects on animal performance.
- dc.description.fosrctranslation - fr
- La recherche de stratégies efficaces et économiques pour réduire les émissions de méthane entérique (CH4) des ruminants suscite un intérêt croissant. Les fourrages céréaliers à petits grains, notamment l'orge, l'avoine, le triticale et le blé, contrairement au maïs, sont largement cultivés dans les régions tempérées et peuvent être utilisés de manière économique pour la production de ruminants. Cependant, la composition et les concentrations en amidon et en fibres des fourrages céréaliers à plante entière affectent la dégradabilité dans le rumen et peuvent donc entraîner des différences dans le potentiel de production de CH4 entre ces fourrages. Par conséquent, l'objectif de cette étude était de déterminer le potentiel d'émission de CH4 entérique de diverses céréales à plante entière et d'évaluer si la variabilité des émissions pouvait être expliquée par des variations dans les profils nutritionnels, la dégradabilité et les caractéristiques de la fermentation dans le rumen. Les résultats indiquent que l'alimentation des ruminants avec du fourrage d'avoine en plante entière peut diminuer les émissions de CH4 mais affecter négativement les performances des animaux en raison d'une plus faible dégradabilité, tandis que le fourrage d'orge peut améliorer les émissions sans effets négatifs sur les performances des animaux.
- dc.identifier.citation
- Aboagye, I. A., Rosser, C. L., Baron, V. S., & Beauchemin, K. A. (2021). In vitro assessment of enteric methane emission potential of whole-plant barley, oat, triticale and wheat. Animals, 11(2), 450. https://doi.org/10.3390/ani11020450
- dc.identifier.doi
- https://doi.org/https://doi.org/10.3390/ani11020450
- dc.identifier.issn
- 2076-2615
- dc.identifier.uri
- https://open-science.canada.ca/handle/123456789/874
- dc.language.iso
- en
- 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.openaccesslevel - en
- Gold
- dc.rights.openaccesslevel - fr
- Or
- 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
- Agriculture
- dc.subject - fr
- Agriculture
- dc.subject.en - en
- Agriculture
- dc.subject.fr - fr
- Agriculture
- dc.title - en
- In vitro assessment of enteric methane emission potential of whole-plant barley, oat, triticale and wheat
- dc.type - en
- Article
- dc.type - fr
- Article
- local.acceptedmanuscript.articlenum
- 450
- local.article.journalissue
- 2
- local.article.journaltitle
- Animals
- local.article.journalvolume
- 11
- local.peerreview - en
- Yes
- local.peerreview - fr
- Oui
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