Just use a phiomia with a lot of stimberries.

1 Tame a phiomia with bolas and a club

2 Build a structure of your choice to house the phiomia and collect poop

3 Gather tons of stimberries (I use a moschops)

4 level up the phiomias food only. Dont waste points on other stuff your never going to use it for travel.

5 SHOVE THE STIMBERRIES DOWN ITS THROAT AND GIVE IT DIARRHEA LIKE YOU AFTER HAVING TACO BELL

6 You now have a lot of poop. Just dont tell PETA what you did. :)

Fun fact. At least on mobile, spinos poop 2 large feces at a time

Force feed a phiomia to get a lot of poop, then just put in the dung beetle and you get fertilizer plus a little of oil

I just tamed about 8 dung beetles and about 3 phiomias and then lvled food into the piggies and the bettles into weight. I have had these beetles for just 3 irl days and already have almost 1k fertilizer. 10/10 would recommend doing what I did

Force feed phiomia stimberries and see what happens ;)

Get a few dung beetles and put them on wander put poop in their inventory and they will get u fertilizer and oil use bigger poop for better income

This is gross but toilets can make fertilizer if they have a water line then u have fertilizer 😶

Get lots of poop and put in dung beetel to make fertelizer and oil easy to tame these guys.

Get poop and get dung beetles then put the poop in the beetle’s inventory enable wandering then you get a bunch of fertilizer