Use scorps. At most you will need like 11, to 15 around level 100-150. Scorpions don't need kibble, can be picked up with and argie. And best of all, they are easy knock out and tame. Since they only take spoiled meat. They are also pretty easy for a troodon to kill.
At lvl 72 with flak armor on, a lvl 5 Troodon knocked me out with one attack at night. Last thing I saw was those glowing eyes before passing out. My Guess is that they attack vital organs. Luckily my Doedicarus was up for a game of baseball and launched that little devil out into the stands.