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CAB eBooks

Ebooks on agriculture and the applied life sciences from CAB International

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CABI Book Chapter Info
Cover for Modelling production and portal appearance of volatile fatty acids in dairy cows.

Values of stoichiometric coefficients were estimated to describe the production of volatile fatty acids (VFA) from fermented substrate in the rumen of lactating cows. Coefficient estimates were derived by regression of in vivo data of rumen digestion to a stoichiometric model with non-linear...

Author(s)
Bannink, A.; Kogut, J.; Dijkstra, J.; France, J.; Tamminga, S.; Vuuren, A. M. van
ISBN
2000 CABI (H ISBN 9780851994499)
Type
Book chapter
CABI Book Chapter Info
Cover for Animal processes.

This chapter considers some simple compartmental models of animal processes, with reference to ruminants. The processes described are protein synthesis in tissues and the whole body, volatile fatty acid production by rumen microbes, life-cycle dynamics of rumen fungi, leucine kinetics in the udder, ...

Author(s)
Thornley, J. H. M.; France, J.
ISBN
2007 CABI (H ISBN 9780851990101)
Type
Book chapter
CABI Book Chapter Info
Cover for Production efficiency of ruminants: feed, nitrogen and methane.

This chapter discusses the production efficiency of ruminants, particularly cattle, in relation to feeds, nitrogen excretion and methane emission. Focus is given on the production efficiency of cattle, primarily that of dairy cattle, at the animal level. Improvements in production efficiency are...

Author(s)
Dijkstra, J.; France, J.; Ellis, J. L.; Strathe, A. B.; Kebreab, E.; Bannink, A.
ISBN
2013 CABI (H ISBN 9781780640426)
Type
Book chapter
CABI Book Chapter Info
Cover for Volatile fatty acid production.

Author(s)
France, J.; Dijkstra, J.
ISBN
2005 CABI Publishing (H ISBN 9780851998145)
Type
Book chapter
CABI Book Chapter Info
Cover for Modelling fluxes of volatile fatty acids from rumen to portal blood.

A model was developed that describes the relationships between the production, the ruminal concentrations and the fluxes of volatile fatty acids (VFAs) across portal drained viscera (PDV). This study presents some preliminary results. Firstly, general steady state relationships between production...

Author(s)
Nozière, P.; Hoch, T.
ISBN
2006 CABI Publishing (H ISBN 9781845930059)
Type
Book chapter; Conference paper
CABI Book Chapter Info
Cover for Microbial energetics.

Author(s)
Russell, J. B.; Strobel, H. J.
ISBN
2005 CABI Publishing (H ISBN 9780851998145)
Type
Book chapter
CABI Book Chapter Info
Cover for Rumen function.

Author(s)
Bannink, A.; Tamminga, S.
ISBN
2005 CABI Publishing (H ISBN 9780851998145)
Type
Book chapter
CABI Book Chapter Info
Cover for The role of thermodynamics in controlling rumen metabolism.

Chemical reactions are controlled either thermodynamically or kinetically. Most mechanistic biological models assume kinetic control of metabolism pathways. The profile of products formed depends on substrate concentrations and enzyme activities, which control the rates of synthesis for competing...

Author(s)
Kohn, R. A.; Boston, R. C.
ISBN
2000 CABI (H ISBN 9780851994499)
Type
Book chapter
CABI Book Chapter Info
Cover for Towards a more accurate representation of fermentation in mathematical models of the rumen.

Most mathematical models of the rumen make use of empirical stoichiometric equations to predict the production of fermentation products in the rumen. These models are based on a one, two and three microbial group representation of the total rumen microbial population. The prediction of total VFA...

Author(s)
Nagorcka, B. N.; Gordon, G. L. R.; Dynes, R. A.
ISBN
2000 CABI (H ISBN 9780851994499)
Type
Book chapter
CABI Book Chapter Info
Cover for The Nordic dairy cow model, Karoline - development of volatile fatty acid sub-model.

The objective of our work was to develop a sub-model for rumen volatile fatty acid (VFA) production to be used in a Nordic dairy cow model, Karoline. An inter-Nordic database of 29 dairy cow experiments with 107 experimental treatments was formed, which included information on feed intake, feed...

Author(s)
Sveinbjörnsson, J.; Huhtanen, P.; Udén, P.
ISBN
2006 CABI Publishing (H ISBN 9781845930059)
Type
Book chapter; Conference paper

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