Hostname: page-component-6bf8c574d5-b4m5d Total loading time: 0 Render date: 2025-02-14T23:07:34.087Z Has data issue: false hasContentIssue false
  • English
  • Français

Gas volume and microbial growth relationship using in vitro techniques related to feed quality

Published online by Cambridge University Press:  20 November 2017

C. Longo ,
S. P. Gobbo ,
I.C.S. Bueno ,
S.L.S. Cabral Filho  and
A.L. Abdalla
C. Longo*
Affiliation:
Animal Nutrition Lab, CENA/USP, Caixa Postal 96, CEP 13400-970, Piracicaba, São Paulo, Brazil
S. P. Gobbo
Affiliation:
Animal Nutrition Lab, CENA/USP, Caixa Postal 96, CEP 13400-970, Piracicaba, São Paulo, Brazil
I.C.S. Bueno
Affiliation:
Animal Nutrition Lab, CENA/USP, Caixa Postal 96, CEP 13400-970, Piracicaba, São Paulo, Brazil
S.L.S. Cabral Filho
Affiliation:
Animal Nutrition Lab, CENA/USP, Caixa Postal 96, CEP 13400-970, Piracicaba, São Paulo, Brazil
A.L. Abdalla
Affiliation:
Animal Nutrition Lab, CENA/USP, Caixa Postal 96, CEP 13400-970, Piracicaba, São Paulo, Brazil
*
E-mail: [email protected]
Get access

Extract

The gas measured in an in vitro experiment is an indirect measurement of nutritionally important events. Feeds in the rumen are converted to short-chain fatty acids, to CO2, to CH4 and to microbial mass plus water. The pathways used for microorganisms for carbohydrate degradation will determine the amount of ATP available for microbial cell production and vary with the type of substrate, nature of inoculum and time of observation. The aim of this work was to study the relationship between gas volume and microbial growth regarding to the substrate quality.

Type
Poster Presentations
Information
Proceedings of the British Society of Animal Science , Volume 2004 , 2004 , pp. 120
Copyright
Copyright © The British Society of Animal Science 2004

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

France, J.; Dhanoa, M.S.; Theodorou, M.K.; Lister, S.J.; Davies, S.J. and Isac, D., 1993. A model to interpret gas accumulation profiles with in vitro degradation of ruminant feeds. Journal of Theoretical Biology, 163:99–111.Google Scholar
Orskov, E.R.; McDonald, I., 1979. The estimation of protein degradability in the rumen from incubation measurements weighted according to rate of passage. Journal of American Science, v.92, p.449–453.Google Scholar
Theodorou, M.K.; Williams, B.A.; Dhanoa, M.S.; McAllan, A.B. and France, J., 1994. A simple gas production method using a pressure transducer to determine the fermentation kinetics of ruminant feeds. Animal Feed Science and Technology, 48:185–97.CrossRefGoogle Scholar
Cabral Filho, S.L.S.; Gobbo, S.P.; Bueno, I.C.S.; Machado, M.C.; Nozella, E.F.; Abdalla, A.L., 2002. Incorporação in vitro de radiofósforo pelos microrganismos ruminais em diferentes proporções do inóculo. Revista Brasileira de Pesquisa e Desenvolvimento, 4 (3): 1538–1540.Google Scholar
Bueno, I.C.S.; Machado, M.C.; Cabral Filho, S.L.S.; Gobbo, S.P.; Vitti, D.M.S.S.; Abdalla, A.L., 2002. Rumen microbial growth estimation using in vitro radiophosphorous incorporation technique. Revista Brasileira de Pesquisa e Desenvolvimento, 4 (3): 1534–1537.Google Scholar