M.M.  Rahman, Mohamad  Amran Mohd. Salleh, Amimul  Ahsan, J.E.  Lee, C.S.  Ra, 
    <I>In vitro</I> Fermentation, Methane Emission and Global Warming,
    Journal of Animal and Veterinary Advances,
    Volume 11,Issue 20,
    2012,
    Pages 3717-3723,
    ISSN 1680-5593,
    javaa.2012.3717.3723,
    (https://makhillpublications.co/view-article.php?doi=javaa.2012.3717.3723)
    Abstract: <I>In vitro</I> fermentation of available 36 feeds was performed 
  to assess the quality by investigating the methane (CH<SUB>4</SUB>) production 
  rate. For this purpose, a fermentation reactor was designed to capture the CH<SUB>4</SUB> 
  gas emitted and to collect liquor from the reactor during <I>in vitro</I> fermentation. 
  The result showed that the CH<SUB>4</SUB> production rate was greatly vary in 
  different feed ingredients. The lowest CH<SUB>4</SUB> producing feeds were corn 
  gluten feed, brewer&#146;s grain and 
  alfalfa straw among all energy, protein and forage feeds, respectively. Significant 
  differences were found in CH<SUB>4</SUB> emissions (p&lt;0.01) in different 
  feed ingredients during the 48 h of <I>in vitro</I> fermentation. Finally, an 
  economically viable and eco-friendly dairy ration was suggested that would be 
  produced a much less CH<SUB>4</SUB> than that of commercial dairy rations. Suggested 
  dairy ration might be reduced CH<SUB>4</SUB> emission as well as global warming.
    Keywords: In vitro fermentation;CH4 production;feed evaluation;eco-friendly ration;quality