University Library
  • Login
A gateway to Melbourne's research publications
Minerva Access is the University's Institutional Repository. It aims to collect, preserve, and showcase the intellectual output of staff and students of the University of Melbourne for a global audience.
View Item 
  • Minerva Access
  • Veterinary and Agricultural Sciences
  • Veterinary and Agricultural Sciences Collected Works
  • Veterinary and Agricultural Sciences Collected Works - Research Publications
  • View Item
  • Minerva Access
  • Veterinary and Agricultural Sciences
  • Veterinary and Agricultural Sciences Collected Works
  • Veterinary and Agricultural Sciences Collected Works - Research Publications
  • View Item
JavaScript is disabled for your browser. Some features of this site may not work without it.

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

    Thumbnail
    Download
    Published version (515.0Kb)

    Citations
    Scopus
    Web of Science
    Altmetric
    3
    3
    Author
    Goopy, JP; Korir, D; Pelster, D; Ali, AIM; Wassie, SE; Schlecht, E; Dickhoefer, U; Merbold, L; Butterbach-Bahl, K
    Date
    2020-06-14
    Source Title
    The British Journal of Nutrition: an international journal of nutritional science
    Publisher
    Cambridge University Press (CUP)
    University of Melbourne Author/s
    Korir, Daniel
    Affiliation
    Veterinary and Agricultural Sciences
    Metadata
    Show full item record
    Document Type
    Journal Article
    Citations
    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.. Br J Nutr, 123 (11), pp.1239-1246. https://doi.org/10.1017/S0007114519003350.
    Access Status
    Open Access
    URI
    http://hdl.handle.net/11343/252175
    DOI
    10.1017/S0007114519003350
    Open Access at PMC
    http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7512143
    Abstract
    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.

    Export Reference in RIS Format     

    Endnote

    • Click on "Export Reference in RIS Format" and choose "open with... Endnote".

    Refworks

    • Click on "Export Reference in RIS Format". Login to Refworks, go to References => Import References


    Collections
    • Minerva Elements Records [53039]
    • Veterinary and Agricultural Sciences Collected Works - Research Publications [329]
    Minerva AccessDepositing Your Work (for University of Melbourne Staff and Students)NewsFAQs

    BrowseCommunities & CollectionsBy Issue DateAuthorsTitlesSubjectsThis CollectionBy Issue DateAuthorsTitlesSubjects
    My AccountLoginRegister
    StatisticsMost Popular ItemsStatistics by CountryMost Popular Authors