A model for the estimation of volatile fatty acid production in the rumen in non-steady-state conditions

S. V. Morant; J. L. Ridley; J. D. Sutton

doi:10.1079/BJN19780061

Abstract

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

A method of estimating volatile fatty acid (VFA) production in the rumen in non-steady-state conditions was proposed. Laboratory models indicated that good estimates of total production over a complete feeding cycle could be obtained even when a wide range of production rates and volume changes occurred during the experiment. But estimates of instantaneous production rates might have contained large errors unless some attempt was made to match the infusion rate of labelled VFA to the rate at which VFA was produced in the rumen.

References

REFERENCES

Campling, R. C., Freer, M. & Balch, C. C. (1961). Br. J. Nutr. 15, 531.CrossRef Google Scholar

Gray, F. V., Weller, R. A., Pilgrim, A. F. & Jones, G. B. (1966). Aust. J. agric. Res. 17, 69.CrossRef Google Scholar

Reid, C. S. W. (1965). Proc. N.Z. Soc. Anim. Prod. 25, 65.Google Scholar

Sutton, J. D., Macleod, G. K., Sissons, J. W. & Johnson, V. W. (1972). Proc. Nutr. Soc. 31, 67A.Google Scholar

Warner, A. C. I. & Stacy, B. D. (1968). Br. J. Nutr. 22, 369.CrossRef Google Scholar

Crossref Citations

This article has been cited by the following publications. This list is generated based on data provided by Crossref.

Sutton, J. D. 1979. Carbohydrate fermentation in the rumen—variations on a theme. Proceedings of the Nutrition Society, Vol. 38, Issue. 3, p. 275.

Sutton, J. D. 1980. Digestive Physiology and Metabolism in Ruminants. p. 271.

Beever, D. E. Osbourn, D. F. Cammell, S. B. and Terry, R. A. 1981. The effect of grinding and pelleting on the digestion of Italian ryegrass and timothy by sheep. British Journal of Nutrition, Vol. 46, Issue. 2, p. 357.

Lebzien, P. Rohr, K. and Oslage, H. J. 1981. Untersuchungen über die Abhängigkeit der Fettsäureproduktion im Pansen von der Rationszusammensetzung. Archiv für Tierernaehrung, Vol. 31, Issue. 10, p. 685.

Oldham, J.D. and Alderman, G. 1982. Protein and Energy Supply for High Production of Milk and Meat. p. 33.

Mathers, J. C. and Walters, D. E. 1982. Variation in methane production by sheep fed every two hours. The Journal of Agricultural Science, Vol. 98, Issue. 3, p. 633.

Milne, J. A. and Mayes, R. W. 1984. The use of simple compartmental models in sheep metabolism studies. Proceedings of the Nutrition Society, Vol. 43, Issue. 2, p. 197.

Mackie, R. I. Gilchrist, Frances M. C. and Heath, Suzette 1984. Anin vivostudy of ruminal micro-organisms influencing lactate turnover and its contribution to volatile fatty acid production. The Journal of Agricultural Science, Vol. 103, Issue. 1, p. 37.

Armentano, L.E. Mills, S.E. deBoer, G. and Young, J.W. 1984. Effects of Feeding Frequency on Glucose Concentration, Glucose Turnover, and Insulin Concentration in Steers. Journal of Dairy Science, Vol. 67, Issue. 7, p. 1445.

Sutton, J.D. 1985. Digestion and Absorption of Energy Substrates in the Lactating Cow. Journal of Dairy Science, Vol. 68, Issue. 12, p. 3376.

France, J. Gill, M. Dhanoa, M.S. and Siddons, R.C. 1987. On solving the fully-interchanging N-compartment model in steady-state tracer kinetic studies with reference to VFA absorption from the rumen. Journal of Theoretical Biology, Vol. 125, Issue. 2, p. 193.

Oldham, J.D. and Emmans, G.C. 1989. Prediction of Responses to Required Nutrients in Dairy Cows. Journal of Dairy Science, Vol. 72, Issue. 12, p. 3212.

N⊘rgaard, Peder 1989. Influence of Physical Form of the Ration on Ruminal Ingesta and Ruminal Fermentation in Lactating Cows Fed 12 Times daily. Acta Agriculturae Scandinavica, Vol. 39, Issue. 4, p. 441.

Rymer, C. and Armstrong, D. G. 1989. Digestion by sheep of ground and unground dried molassed sugarbeet pulp diets and the effect of partially replacing the beet pulp with barley. The Journal of Agricultural Science, Vol. 113, Issue. 2, p. 223.

France, J. Siddons, R.C. and Dhanoa, M.S. 1991. Adaptation of compartmental schemes for interpreting isotope dilution data on volatile fatty acid metabolism in the rumen to the non-steady state and for single-dose injection. Journal of Theoretical Biology, Vol. 153, Issue. 2, p. 247.

France, J. Siddons, R.C. Dhanoa, M.S. and Thornley, J.H.M. 1991. A unifying mathematical analysis of methods to estimate rumen volume using digesta markers and intraruminal sampling. Journal of Theoretical Biology, Vol. 150, Issue. 2, p. 145.

Sniffen, C.J. Beverly, R.W. Mooney, C.S. Roe, M.B. Skidmore, A.L. and Black, J.R. 1993. Nutrient Requirements Versus Supply in the Dairy Cow: Strategies to Account for Variability. Journal of Dairy Science, Vol. 76, Issue. 10, p. 3160.

Annison, E. F. and Bryden, W. L. 1998. Perspectives on ruminant nutrition and metabolism I. Metabolism in the Rumen. Nutrition Research Reviews, Vol. 11, Issue. 2, p. 173.

Sutton, J.D. Dhanoa, M.S. Morant, S.V. France, J. Napper, D.J. and Schuller, E. 2003. Rates of Production of Acetate, Propionate, and Butyrate in the Rumen of Lactating Dairy Cows Given Normal and Low-Roughage Diets. Journal of Dairy Science, Vol. 86, Issue. 11, p. 3620.

Article contents

A model for the estimation of volatile fatty acid production in the rumen in non-steady-state conditions

Abstract

References

REFERENCES

Save article to Kindle

Save article to Dropbox

Save article to Google Drive

Reply to: Submit a response

Your details

You have entered the maximum number of contributors

Conflicting interests