Methane (CH4) mitigation in ruminants is possible through
various strategies. Today, the feeding management approach
is the most developed. Other strategies (biotechnologies,
additives) are promising but the diversity and plasticity of
functions of the rumen bacterial and methanogenic communities
may be a limiting factor for their successful application.
A possible selection of animals on CH4 production and
more likely on digestive processes is evocated. In any case,
before practical solutions are proposed for field application
more research in vivo is needed. The sustainability of CH4-
suppressing strategies is also an important issue and they