Individual data from sheep nitrogen balance, fecal excretion and methane in respiration chamber measurements will be contributed to the Global Network Nitrogen database project lead by Alexander Hristov of Pen State University, USA. (see also attached collaboration letter).

The data is from the following trials:
HSG 'high sugar grass' studies (SLMACC)
CPT21, CPT32 and CPT33 'Animal variation' study (PGgRc/NZAGRC)  