ABSTRACT
The potential use of plant bioactive compounds in animal nutrition to reduce CH4 emissions and N waste is the subject of renewed interest as they are seen as a natural alternative to chemical additives and are well perceived by consumers. Plant bioactive compounds are promoted as improving health and performance. This chapter discusses the information on the use of plant bioactive compounds in ruminant nutrition to promote livestock farming that is only more environment-friendly and efficient in the use of feed but also compliant with consumer demands for quality and safety in animal products. It focuses on the potential of plant bioactive compounds to mitigate enteric CH4 production in ruminants and, when information is available, N waste. Lipids have a high nutritional value. The primary reason to use lipids in the diet of ruminants was to increase the potential production of animals and to improve the quality of meat and dairy products in terms of fat content and composition.
