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纽西兰畜牧业宣布全球首个基因项目，将培育甲烷排放量较低的绵羊，以减少温室气体排放。

纽西兰平均每人拥有6只绵羊，畜牧业约占该国温室气体总排放量的三分之一。

由农业部门和政府联合资助的畜牧温室气体研究协会表示，通过这个基因项目取得的温室气体排放控制的进展大约每年1%，但是属于累积性的，不会对农业生产力产生负面的影响。

由于动物机体生存必须利用氧气并代谢生成二氧化碳，因此大量畜牧生产对全球温室气体二氧化碳排放量的贡献不言而喻。

与其它家畜种类不同，反刍家畜（牛、羊）的新陈代谢过程（打嗝）还伴随着甲烷排放。基于此，这项基因项目给纽西兰羊业提供了切实的方案，从而缓解农业温室气体的排放。