Niger Seed (Guizotia abyssinica) Alters in Vitro Rumen Fermentation and Reduces Methane Emission

Oilseeds can be used to manipulate ruminal fermentation for attaining cleaner and better production. The effect of feed-grade niger seeds was studied on in vitro rumen fermentation parameters in comparison to sunflower seeds. Methane production decreased (P ≤ 0.01) with incorporation of both seeds. In vitro digestibility of dry matter and organic matter reduced at higher incorporation levels (above 5%, DM basis). Fermentation pattern of niger and sunflower seed-based total mixed rations was highly comparable. The relatively higher anti-methanogenic potential of niger seeds could make it a better choice for alleviation of enteric methane and formulation of environment-friendly rations.