Elie
Created page with "Farm animals eat, and they also produce food. Feed efficiency refers to the ratio of ''output (food)'' per ''input (feed)''. There are a few ways to quantify outputs and inputs, such as * total mass * dry mass * calories * protein Within each of those, one might also specify whether we're talking about * ''all'' material, or * just the proportion that is ''human-edible'' Lastly, we could specify whether the inputs & outputs are * ''over the full lifetime'' of the animal..."