Get yourselves a Phiomia as well! Feed it stimberries and you'll have plenty of medium feces to throw in the dung beetle. Fill it up, and come back and watch more fertilizer than you can imagine. I'll never use compost bins again!
Wanna upgrade other stats? Listen well! Grab a tamed beetle fill your own inventory with all the poop that phiomia produces lock you and your beetle in a cage. Set his ass to Aggressive and unclaim it. Let it murder you and it'll have all the poop from your inventory. Reclaim it and wallah. Now you can increase its health