对标"双碳"目标的反刍动物甲烷减排的营养调控技术研究进展OA

Methane produced from rumen fermentation in ruminants not only causes significant energy loss in animals but also exacerbates the greenhouse effect,exerting a negative impact on global climate change.Achieving the"dual carbon"goals of carbon peaking and carbon neutrality is one of the key tasks in addressing climate change globally,and controlling greenhouse gas emissions from the livestock sector is an essential part of this process.Studies have shown that optimizing the ratios of carbohydrates,unsaturated fatty acids,and proteins can significantly regulate rumen fermentation and reduce methane emissions.Feed additives such as nitrates,tannins,propionates,and probiotics further decrease methane emissions by inhibiting methanogen metabolism.Improved feed formulation and processing techniques also help optimize rumen fermentation,lower methane production,and improve feed utilization efficiency.This paper reviews recent research progress on nutritional regulation strategies for mitigating methane emissions in ruminants.These strategies not only improve energy utilization efficiency in ruminants and promote the sustainable development of low-carbon livestock systems,but also contribute to the realization of the"dual carbon"goals and the alleviation of global climate change.