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To provide practical advice on measures of dietary management to reduce methane emissions from ruminants - CC0201

Description
Methane is a greenhouse gas second only in importance to carbon dioxide. In the UK, enteric fermentation is the major agricultural source of methane, 95% of which emanates from domestic animals. Hence, manipulation of ruminant diets could lead to reductions in methane levels. In order to do this more information is needed about rumen function, effects of diet type, diet interactions and level of feeding on methane production and efficiency of energy utilisation. This study will aim to provide advice on practical aspects of dietary management to reduce methane emissions from ruminants. A literature review will be undertaken on methane production and its involvement in climate change. Effects of upgrading of low grade forage on methane output will be determined and the use of sheep as a ruminant model will be validated. An in vitro gas production system for estimating the methane production potential of ruminant feeds will be investigated and validated using dietary material of known methane production potential. Rumen protozoa will be enumerated, characterised and related to methane generation. Data obtained from the project will be used to produce an improved model linking feed input to methane output and to enhance estimation of national output of methane from ruminants.
Objective
Literature review on methane production and the involvement
of this in climate change.

To determine the effect of upgrading of low grade forage on
methane output.

To validate use of sheep as a model.

To discuss, through comparative trials, different feeds,
interactions and different planes of nutrition.

To produce an improved model linking feed input to methane
output.

To improve estimate of national output of methane from
ruminants.
Time-Scale and Cost
From: 1990

To: 1996

Cost: £616,000
Contractor / Funded Organisations
ADAS UK Ltd.
Keywords
              
Fields of Study
Agriculture and Climate Change