Once trapped in a dino gate trap, use tranq arrows carefully untill the argy starts trying to run, then throw a dead dino such as a dodo or monkey and let it eat it, then light it up with tranqs till its knocked out. When the argy is KOed its hunger will have diminished to a almost starving level, go kill some dinos that drop prime meat, you have about 4 minutes to get the meat and feed the argy, this is the most efficient way and it also adds to your tame effectiveness leveling the argy even more.