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Effect of sudden short term exercise on hind gut fermentation kinetics in the equine

  • K J Hart (a1), R A Sansom (a1), M L Rutherford (a1) and C J Newbold (a1)

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It has been demonstrated by Pagan et al. (1998) that horses on a regular extensive exercise regime have an increased whole-tract passage rate and hence a decreased feed degradability. Recent work by Dougal et al. (2005) reported that regularly exercised horses had a decreased rate of gas production from faecal slurries compared to non-exercised horses, despite an apparently enhanced bacterial population. Many horses are not exercised during the week but are exercised at the weekend and receive supplementary feed after exercise. This may be fed in vain due to a decrease in feed degradability associated with increased exercise (Pagan et al. 1998). The aim of this experiment was to asses the impact of sudden short term exercise on the extent of microbial fermentation within the hind gut of the equine.

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Dougal, K., Rand, A.S., Walsh, C.P. and Newbold, C.J. (2005). The effect of exercise on microbial activity in the hindgut of horses. In Proceedings of the Winter Meeting of The British Society of Animal Science. 47
Lowman, R.S., Thedorou, M.K., Hyslop, J.J., Dhanoa, M.S. and Cuddeford, D. (1999). Evaluation of an in vitro batch culture technique for estimating the in vivo digestibility and digestible energy content of equine feeds using equine faeces as the source of microbial inoculum. Animal Feed Science and Technology 80: 11-27
Ørskov, E.R., and McDonald, I. (1979). The estimation of protein degradability in the rumen from incubation measurements weighted according to rate of passage. Journal of Agricultural Science 92: 499-503
Pagan, J.D., Harris, P., Brewster-Barnes, T., Duren, S.E. and Jackson, S.G. (1998). Exercise affects digestibility and rate of passage of all forages and mixed diets in thoroughbred horses. Journal of Nutrition 128: 2704S-2707S

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Effect of sudden short term exercise on hind gut fermentation kinetics in the equine

  • K J Hart (a1), R A Sansom (a1), M L Rutherford (a1) and C J Newbold (a1)

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