rdf-syntax-grammar
mods:
  schema location: http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
  title info:
    title: Supplementation strategies to improve efficiency of forage utilization and mitigate enteric methane production in Bos indicus and Bos taurus cattle
  name:
    name part: Bell, Natasha LuRey
    role:
      role term: creator
    role:
      role term: author.
  name:
    name part: Wickersham, Tryon A.
    role:
      role term: thesis advisor.
  name:
    name part: Sawyer, Jason E.
    role:
      role term: thesis advisor.
  name:
    name part: Texas A & M University
    role:
      role term: degree granting institution.
  type of resource: text
  genre: bibliography
  origin info:
    place:
      place term: txu
    date issued: 2015
    issuance: monographic
  language:
    language term: eng
  physical description:
    form: remote
    extent: 1 online resource.
  abstract: Multiple investigations were undertaken to determine the effect of various strategies for improving forage intake, digestion, and ruminal fermentation parameters in Bos indicus and Bos taurus steers. Protein supplementation strategies and monensin inclusion have the potential to improve animal production efficiency while mitigating enteric CH₄ production; reducing the economic and environmental impact of cattle production systems. Effects of different levels and sources of supplemental protein on ruminal methane-producing activity, rate of NH₃ production, and concentrations of methanogens, protozoa, amino acid-utilizing, and trypticase-metabolizing bacteria were investigated. Subspecies differences were not observed for any of the measured parameters (P >= 0.28). Additionally, the effects of monensin inclusion and withdrawal on intake, digestion, and ruminal fermentation parameters were investigated. During the monensin inclusion phase, a subspecies difference was observed (P = 0.04) for total digestible OM intake, and a tendency (P = 0.07) for a subspecies difference was observed for CH₄-producing activity. During the monensin withdrawal phase, subspecies differences were observed (P <= 0.01) for total digestible OM intake and OM digestibility, and a tendency (P <= 0.09) for subspecies differences were observed for pH and forage OM intake. Overall, results suggest that the difference in ability of Bi and Bt cattle to utilize forage is diet dependent and may be altered by protein supplementation and monensin inclusion to improve production efficiency and mitigate enteric CH₄ production. The electronic version of this dissertation is accessible from http://hdl.handle.net/1969.1/155117
  note: by Natasha LuRey Bell.
  note: "Major Subject: Animal Science"
  note: Includes vita.
  note: Doctor of Philosophy Texas A & M University 2015 http://hdl.handle.net/1969.1/155117
  note: Includes bibliographical references.
  note: Text (Dissertation)
  subject:
    topic: Major animal science
  subject:
    topic: Bos indicus
  subject:
    topic: Bos taurus
  subject:
    topic: monensin
  subject:
    topic: protein supplementation
  subject:
    topic: forage utilization
  subject:
    topic: cattle
  identifier: http://hdl.handle.net/1969.1/155117
  record info:
    record content source: TXA
    record creation date: 160309
    record change date: 20170928112451.0
    record identifier: in00003615960
    language of cataloging:
      language term: eng