Ah okay! I'll make a note to do some research for the next update. If you have any more details about your requirements, feel free to leave them here or drop me an email!
The following would be perfect:
If a farmer killed this animal, what would they get?
chicken -> chicken leg, feather
cow -> beef, cow leather
pig -> pork, pig leather
etc ...
The idea here is, when building a farming sim, animals can be transformed into animal products.
