Methane emissions from grazing Angus beef cows selected for divergent residual feed intake

This paper is part of the special issue entitled: Greenhouse Gases in Animal Agriculture - Finding a Balance between Food and Emissions, Guest Edited by T. A. McAllister, Section Guest Editor; K.A. Beauchemin, X. Hao, S. McGinn and Editor for Animal Feed Science and Technology, P.H. Robinson.