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Evaluation of seed hardness and malting characteristics of barley grain for use in ruminant diets

  • Author / Creator
    Ding, Shuai
  • In Western Canada, over 70% of the barley grain grown for malt is sold as livestock feed. The main objective of this thesis was to investigate the relationship between ruminal dry matter digestibility (DMD) and seed hardness (SH) and malting characteristics (MC) of barley grain by measuring in situ DMD, and changes in the nutrient composition as predicted by Fourier Transform Infrared Spectroscopy with Attenuated Total Reflectance (ATR-FTIR) before and after in situ rumen incubation. Results demonstrated that diastatic power and SH were associated with an improved in situ rumen digestion at early incubation time, but level of SH and MC had no impact on rumen digestion in relation to nutrient molecular structures using ATR-FTIR spectra. However, ATR-FTIR identified the differences of molecular structures in barley grain as affected by rumen digestion, indicating a potential of ATR-FTIR for use to predict nutrient digestion of barley grain in the rumen.

  • Subjects / Keywords
  • Graduation date
    2015-06
  • Type of Item
    Thesis
  • Degree
    Master of Science
  • DOI
    https://doi.org/10.7939/R37W68
  • License
    This thesis is made available by the University of Alberta Libraries with permission of the copyright owner solely for non-commercial purposes. This thesis, or any portion thereof, may not otherwise be copied or reproduced without the written consent of the copyright owner, except to the extent permitted by Canadian copyright law.
  • Language
    English
  • Institution
    University of Alberta
  • Degree level
    Master's
  • Department
    • Department of Agricultural, Food, and Nutritional Science
  • Specialization
    • Animal Science
  • Supervisor / co-supervisor and their department(s)
    • Yang, Wenzhu (Agriculture and Agri-Food Canada, Lethbridge)
    • Oba, Masahito (Agricultural, Food, and Nutritional Science)
  • Examining committee members and their departments
    • Oba, Masahito (Agricultural, Food, and Nutritional Science)
    • Swift, MaryLou (Alberta Agriculture and Food, Lethbridge)
    • McAllister, Tim (Agriculture and Agri-Food Canada, Lethbridge)
    • Yang, Wenzhu (Agriculture and Agri-Food Canada, Lethbridge)
    • Vansanthan, Thava (Agricultural, Food, and Nutritional Science)