Advanced search
1 file | 2.40 MB Add to list

The potential of batch in vitro simulations and milk fatty acids to assess rumen methane mitigation

(2014)
Author
Promoter
(UGent) , Sam De Campeneere and (UGent)
Organization
Abstract
The estimation of the CH4 produced by ruminants is of paramount importance in order to apply mitigation strategies in dairy farms. In this PhD dissertation two approaches have been tested for their ability to quantify those emissions. First, a number of in vitro experiments was performed to evaluate their ability to reflect the effects that dietary additives might cause in vivo. A first series of in vitro incubations tested the interaction between the additives to inhibit CH4, and feedstuffs used in dairy cattle diets. Furthermore, a comparison of in vitro and in vivo CH4 inhibition through a blend of essential oils was made to explore the potential of various in vitro techniques to simulate in vivo measurements. The second part of this PhD explored the relationships between milk fatty acids and CH4. First, a particular group of MFA, odd- and branched-chain fatty acids were used to predict calculated CH4 proportions (mmol/mol VFA). Secondly, literature data from 15 studies were included in a meta-analysis to find relationships between MFA and CH4. Finally, models to predict CH4 were developed from a data set of 145 observations from 9 in vivo studies.

Downloads

  • PhD dissertation Castro Montoya.pdf
    • full text
    • |
    • open access
    • |
    • PDF
    • |
    • 2.40 MB

Citation

Please use this url to cite or link to this publication:

MLA
Castro Montoya, Joaquin. The Potential of Batch in Vitro Simulations and Milk Fatty Acids to Assess Rumen Methane Mitigation. Ghent University. Faculty of Bioscience Engineering, 2014.
APA
Castro Montoya, J. (2014). The potential of batch in vitro simulations and milk fatty acids to assess rumen methane mitigation. Ghent University. Faculty of Bioscience Engineering, Ghent, Belgium.
Chicago author-date
Castro Montoya, Joaquin. 2014. “The Potential of Batch in Vitro Simulations and Milk Fatty Acids to Assess Rumen Methane Mitigation.” Ghent, Belgium: Ghent University. Faculty of Bioscience Engineering.
Chicago author-date (all authors)
Castro Montoya, Joaquin. 2014. “The Potential of Batch in Vitro Simulations and Milk Fatty Acids to Assess Rumen Methane Mitigation.” Ghent, Belgium: Ghent University. Faculty of Bioscience Engineering.
Vancouver
1.
Castro Montoya J. The potential of batch in vitro simulations and milk fatty acids to assess rumen methane mitigation. [Ghent, Belgium]: Ghent University. Faculty of Bioscience Engineering; 2014.
IEEE
[1]
J. Castro Montoya, “The potential of batch in vitro simulations and milk fatty acids to assess rumen methane mitigation,” Ghent University. Faculty of Bioscience Engineering, Ghent, Belgium, 2014.
@phdthesis{4251151,
  abstract     = {{The estimation of the CH4 produced by ruminants is of paramount importance in order to apply mitigation strategies in dairy farms. In this PhD dissertation two approaches have been tested for their ability to quantify those emissions. 
First, a number of in vitro experiments was performed to evaluate their ability to reflect the effects that dietary additives might cause in vivo. A first series of in vitro incubations tested the interaction between the additives to inhibit CH4, and feedstuffs used in dairy cattle diets. Furthermore, a comparison of in vitro and in vivo CH4 inhibition through a blend of essential oils was made to explore the potential of various in vitro techniques to  simulate in vivo measurements.
The second part of this PhD explored the relationships between milk fatty acids and CH4. First, a particular group of MFA, odd- and branched-chain fatty acids were used to predict calculated CH4 proportions (mmol/mol VFA). Secondly,  literature data from 15 studies were included in a meta-analysis to find relationships between MFA and CH4. Finally, models to predict CH4 were developed from a data set of 145 observations from 9 in vivo  studies.}},
  author       = {{Castro Montoya, Joaquin}},
  isbn         = {{9789059896802}},
  language     = {{eng}},
  pages        = {{VII, 209}},
  publisher    = {{Ghent University. Faculty of Bioscience Engineering}},
  school       = {{Ghent University}},
  title        = {{The potential of batch in vitro simulations and milk fatty acids to assess rumen methane mitigation}},
  year         = {{2014}},
}