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Using infrared thermography as a proxy for measuring methane emissions
The measurement of methane production and feed efficiency in ruminants is expensive; infrared thermography has been proposed as a proxy in cattle. A thermal imaging camera was used to record flank temperatures on cattle fed either wheat or corn based diet. The difference in temperature between left and right flanks is believed to be indicative of the heat of fermentation in the rumen, and hence methane production. The current project found a weak correlation between methane emissions and temperature variations but did find a difference in the average daily temperature between flanks (wheat fed cows 1.43°C vs. corn fed cows 0.71°C). This suggests a thermography might allow qualitative estimation of emissions but the relationship is strongly affected by nutritional interactions.
This page was last updated on 25/07/2017
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