Having examined a number of potentially relevant conferences at which to present the results of this work, this appears to be the most relevant. It has a session dedicated to:
›	Feed conversion efficiency towards productivity and reduction of excreta
o	Biological determinants of feed efficiency
o	Indicators/biomarkers, non-invasive assessment methods 
o	Trade-off between production and environmental impacts (GHG emissions, N losses)
which this work is directly relevant to