Hostname: page-component-848d4c4894-v5vhk Total loading time: 0 Render date: 2024-06-14T17:57:37.901Z Has data issue: false hasContentIssue false

The effect of shaking on the gas production profile of high temperature dried grass

Published online by Cambridge University Press:  05 November 2021

C. Rymer
Affiliation:
Feed Evaluation and Nutritional Sciences, ADAS Drayton, Alcester Road, Stratford upon Avon. CV37 9RQ. , United Kingdom
A.E. Brooks
Affiliation:
IGER, Plas Gogerddan, Aberystwyth. SY23 3EB. , United Kingdom
M.K. Theodorou
Affiliation:
IGER, Plas Gogerddan, Aberystwyth. SY23 3EB. , United Kingdom
D.I. Givens
Affiliation:
Feed Evaluation and Nutritional Sciences, ADAS Drayton, Alcester Road, Stratford upon Avon. CV37 9RQ. , United Kingdom
Get access

Extract

There is contradictory evidence regarding the effect on the gas production (GP) profile of a feed if the incubation medium is shaken during the fermentation. In experiments conducted by Theodorou et al. (personal communication), there was no effect of shaking on the rate of gas production (when the medium was shaken after a recording). However, when buffer solutions (containing no substrate) were continually shaken, there was an effect on the volume of gas produced (Rymer et ai., 1998). The objectives of this experiment were therefore to determine whether die time of shaking affected the GP profile, and whether there was any significant difference between laboratories in this observation.

Type
Programme
Copyright
Copyright © The British Society of Animal Science 1998

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

Groot, J.C.J., Cone, J.W., Williams, B.A., Debersaques, F.M.A. and Lantinga, E.A. (1996). Multiphasic analysis of gas production kinetics for in vitro fermentation of ruminant feeds. Animal Feed Science and Technology 64:7789.CrossRefGoogle Scholar
Rymer, C., Moss, A.R., Deaville, E.R. and Givens, D.I. (1998). Factors affecting the amount of indirect gas produced by the in vitro gas production technique. In vitro techniques for measuring nutrient supply to ruminants. British Society of Animal Science Occasional Publication (in press). 10.1017/S0263967X00032328CrossRefGoogle 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 48:185197, 1994.10.1016/0377-8401(94)90171-6CrossRefGoogle Scholar