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Fig. 4. The relationship between (a) total greenhouse gas emissions (TGE)/live weight{dagger} and (b) TGE/ha* and concentrate fed. ({blacksquare} Conventional farms A–E; • REPS farms F–J; {blacktriangleup} organic farms K–O.) {dagger}Gradient parameter not significant at p > 0.05. *Gradient parameter significant at p < 0.05. Significant differences were found between the amounts of concentrate consumed per animal on each farm (p < 0.05).