M D MacNeil1, R C Waterman2

  • 1Delta G, Miles City, Montana 59301 USA; Department of Animal Sciences, University of the Free State, Bloemfontein, South Africa; Agricultural Research Council-Animal Production, Irene, South Africa.

概括

减少来自牛的温室气体排放是至关重要的. 这项研究发现,在牛犊中测量甲需要45天才能达到80%的准确性,而二氧化碳只需要28天才能获得可靠的结果.