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Use of the Cornell University gas production technique to measure kinetics of carbohydrate degradation in five foods: a comparison between laboratories

Published online by Cambridge University Press:  27 February 2018

A. R. Moss ,
A. N. Pell  and
D. I. Givens
A. R. Moss
Affiliation:
Feed Evaluation and Nutritional Sciences, ADAS Drayton, Alcester Road, Stratford-upon-Avon CV37 9RQ
A. N. Pell
Affiliation:
Department of Animal Science, Cornell University, Ithaca, NY14853, USA
D. I. Givens
Affiliation:
Feed Evaluation and Nutritional Sciences, ADAS Drayton, Alcester Road, Stratford-upon-Avon CV37 9RQ
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Extract

Pell and Schofield (1993) described a gas production technique where cumulative pressure is related to gas production and hence organic matter (OM) fermentation. This technique has been used to describe rates of carbohydrate degradation for use in the Cornell net carbohydrate and protein system (CNCPS, Barry et al., 1994). Increasingly the CNCPS model is being utilized in the United Kingdom (UK) to ration dairy cows and, as a result, a UK foodstuff database has been developed containing the chemical description of the protein and carbohydrate pools. It was necessary to establish whether the gas production technique could be reproduced in a UK laboratory in order to provide rates of fermentation of the carbohydrate pools. Gas production techniques commonly used in the UK do not allow the vessel gas pressure to accumulate so a comparison of methodology was required.

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Information
BSAP Occasional Publication , Volume 22: In vitro techniques for measuring nutrient supply to ruminants , 1998 , pp. 218 - 220
Copyright
Copyright © British Society of Animal Science 1998

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References

Barry, M. C., Fox, D. G., Tylutki, T. P., Pell, A. N., O'Connor, J. D., Sniffen, C. J. and Chalupa, W. 1994. A manualfor using the Cornell net carbohydrate and protein system for evaluating cattle diets (release 3). Cornell University, Ithaca, NY.Google Scholar
Cone, J. W. 1994. A new automated gas production method for the in vitro study of fermentation kinetics in rumen fluid using pressure transducers and electric gas valves. Proceedings of the Society of Nutrition and Physiology 3: 182.Google Scholar
Huntington, J. A., Rymer, C. and Givens, D. I. 1998. Effect of host diet on the gas production profile of hay and high temperature dried grass. Animal Science 67: 59–64.CrossRefGoogle Scholar
Pell, A. N. and Schofield, P. 1993. Computerised monitoring of gas production to measure forage digestion in vitro . Journal of Dairy Science 76: 1063–1073.CrossRefGoogle ScholarPubMed
Pell, A. N. 1995. Measurement and kinetic analysis of the neutral detergent-soluble carbohydrate fraction of legumes and grasses. Journal of Animal Science 73: 3455–3463.Google Scholar
Schofield, P., Pitt, R. E. and Pell, A. N. 1994. Kinetics of fibre digestion from in vitro gas production. Journal of Animal Science 72: 2980–2991.Google Scholar