Impact of breeding for reduced methane emissions in New Zealand sheep on maternal and health traits oleh Sharon M. Hickey, Wendy E. Bain, Timothy P. Bilton, Gordon J. Greer, Sara Elmes, Brooke Bryson, Cesar S. Pinares-Patiño, Janine Wing, Arjan Jonker, Emily A. Young, Kevin Knowler, Natalie K. Pickering, Ken G. Dodds, Peter H. Janssen, John C. McEwan, Suzanne J. Rowe