Researchers modelled the potential emission, production and economic outcomes for wool and lamb enterprises incorporating birdsfoot trefoil (Lotus corniculatus) – a legume containing condensed tannins that inhibit the formation of methane in the rumen – into their pastures.
The modelling showed that although birdsfoot trefoil reduced methane emissions and increased stock productivity through increased wool growth, liveweight gain and fecundity, in most wool enterprise scenarios the extra income did not cover the cost of pasture establishment. There was potential for extra profit in prime lamb enterprises but problems with persistence first need to be overcome.
Browne N, Behrendt R, Kingwell R, Eckard R (2013). Modelling the potential of birdsfoot trefoil (Lotus corniculatus) to reduce methane emissions and increase production on wool and prime lamb farm enterprises. Animal Production Science, 55, 1097-1105, http://dx.doi.org/10.1071/AN13543.