Validation of the methane production measurement accuracy and ranking capacity of portable accumulation chambers for use with small ruminants

by Levrault, Cécile M., Difford, Gareth F., Steinheim, Geir, Groot Koerkamp, Peter W.G., Ogink, Nico W.M.

Comparison of methods to measure methane for use in genetic evaluation of dairy cattle

by Garnsworthy, Philip C., Difford, Gareth F., Bell, Matthew J., Bayat, Ali R., Huhtanen, Pekka, Kuhla, Björn, Lassen, Jan, Peiren, Nico, Pszczola, Marcin, Sorg, Diana, Visker, Marleen H.P.W., Yan, Tianhai