The quickest way to get alot of poop, get some stim berries along with any other berries, keep the normal ones inside and force feed the stimberry instant poop. Use it in a dung Beatle or use it nornally
Take ur bronto and get like 200 stimble berries and just force feed them to this thing and suddenly u have enough fertilizer to grow 500 acres of crops me and my friends call it the pooper machine 3,000 it is amazing but it dose nothing else I am aware of I would seggest this if u need poop for fertilizer but do not use a slingshot it will immidiately kill it on a full drawback and it will be better to use tranq arrows.
The phiomia is a good source of meat and hide in the wild, also it is a good starter tame and very easy to get your hands on. The phiomia can be useful at times due to its poop, as a noob I thought they were very useful because they can carry items for you and your tribe.