Determining the genetic relationship between feed efficiency, production traits and greenhouse gas (NH3, N20, CO2, CH4) Principal Investigator Ben Wood, Hybrid Turkeys (Hendrix Genetics)/University of Guelph Year the work was done 2014-2017 Overall objective Determine the underlying genetic relationships between feed efficiency, production traits and greenhouse gas emission in turkeys. Outcomes A prototype apparatus to measure birds at the individual level was built and significant results were obtained from the apparatus. Birds from the lower efficiency genetic line produced on average: 40.1%, 51.2% and 33.2% more CH4, NH3 and CO2 during sampling. The feasibility of collecting enough individual measures required to measure the heritability was not accomplishable. The difficulty (particularly the time required) in measurement made the implementation of GHG measure as a selection criterion in a breeding program not technically or economically feasible. Application By selecting for reduced FCR by traditional practices the turkey industry will be moving to a more sustainable practice by reducing greenhouse gas emissions. This research applies to Turkeys