The Advanced Adjustment System gives the user superior control in rationing feed. This design is unique to Advantage Feeders. The method of outflow requires stock to lick the feed out of the grove between the 2 adjusters. Research has shown that the stock lick for 5-10 minutes and then graze when the feeder is used in a supplement situation. The licking period is limited because the livestock use the saliva from their tongue to get the feed out of the groove and the saliva decreases with progressive licks. The Advanced Adjustment System can be closed down to a ration of 200 gram/day for sheep and 2kg/day for cattle. It can also be opened to feed ad-lib. The Next Generation Feeders are ideal for cattle, calves, sheep, lambs, goats. They can be used to feed pellets, grain, corn and some total mix rations.