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Relationships between gas release in vitro and in vivo quality measures of tropical forages

  • S. Fernández-Rivera (a1)

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Robust techniques that predict accurately and precisely the quality of forages are needed for developing improved feeding strategies and screening of large numbers of forage samples in breeding programmes. The release of gas in vitro (Menke et al., 1979) is attractive for this purpose because it does not require filtration and one single sample can be used to examine the kinetics of fermentation. The objective of this study was to determine the relationships between gas release in vitro and digestibility in vivo and intake of tropical forages.

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Blümmel, M. and Ørskov, E. R. 1993. Comparison of in vitro gas production and nylon bag degradability of roughages in predicting feed intake in cattle. Animal Feed Science and Technology 40: 109119.
Menke, K. H., Raab, L., Salewski, A., Steingass, H., Fritz, D. and Schneider, W. 1979. The estimation of the digestibility and metabolizable energy content of ruminant feedstuffs from the gas production when they are incubated with rumen liquor. Journal of Agricultural Science, Cambridge 93: 217222.
Tilley, J. M. A. and Terry, R. A. 1963. A two-stage technique for the in-vitro digestion of forage crops. Journal of the British Grassland Society 18: 104111.
Van Soest, P. J., Robinson, J. B. and Lewis, B. A. 1991. Methods for dietary fiber, neutral detergent fiber, and non-starch polysaccharides in relation to animal nutrition. Journal of Dairy Science 74: 35833597.
Wolin, M. J. 1960. A theoretical rumen fermentation balance. Journal of Dairy Science 43: 14521459.

Relationships between gas release in vitro and in vivo quality measures of tropical forages

  • S. Fernández-Rivera (a1)

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